Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale
Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale__after
Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale__below

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4-Year Auto Accessory Protection Plan

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$6.99 4.3 out of 5 stars (2915)
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From the manufacturer

About Us

Since the invention of the transmission cooler by Mr. Perry Hayden in 1961, Hayden has continued to add innovative products to meet the needs of its customers while investing in continuous improvements and maintaining quality.

Hayden Automotive engineers, manufactures and supplies a wide range of products designed to keep your car, truck or performance vehicle running cool. From fan clutches and electric fans to performance oil and transmission coolers, we’ve got what you need to protect your vehicle from damaging and performance robbing heat.

Features & details

Features

  • Size is 3/4 inch x 11 inch x 11-5/8 inch
  • Class "A" motor homes, large travel trailers, 5th wheel trailers
  • GVWR up to 30,000 pounds, towing up to 10,000 pounds
  • Patented internal turbulation increases heat transfer with minimal pressure drop
  • Pre-drilled mounting brackets for easy installation

Product information

    Additional Information

  • ASIN: B000C3BBKS
  • Customer Reviews: 4.8 out of 5 stars 998Reviews
  • Best Sellers Rank:
    #9,382 in Automotive (See Top 100 in Automotive)
    #1 in Automotive Replacement Engine Cooler Accessories
  • Domestic Shipping : Item can be shipped within U.S. International Shipping : This item can be shipped to select countries outside of the U.S. Learn More
  • Date First Available: June 1, 2006
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Product Documentation (PDF)
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Q: Is fit on 2007 gmc 2500 hd?

A: I believe so, buy the additional radiator fitting. Also don’t like mounting to the condens…

Timothy Macfarlane | 4 years ago

Q: I have a ''04 chevy trailblazer 4.2 i6 4wd with factory trans cooler. looking to upgrade t…

A: I would leave the factory trans cooler in place and add the Hayden trans cooler in line if…

Rick W. | 5 months ago

Q: any offer if i buy many quantity ??

A: I wish we could offer a discount for a bulk order, however, there is so much competition o…

Seller Oregon Performance Transmissio… | 9 years ago

Q: Did you bypass stock trans cooler on 4runner?

A: I did it on a Nissan Rogue s , am using both now , but planning on by pass it when I hit t…

G shep | 1 year ago

Customer reviews

4.8 out of 54.8 out of 5
998 global ratings

Top reviews from the United States

John H Isaacs
5.0 out of 5 starsVerified Purchase
Get significant cooler with the 679.
Reviewed in the United States on July 23, 2016
If you''re looking at this cooler you are probably concerned that your transmission is getting too hot. This cooler will cool it down significantly. Here''s my details. I have a 2003 Chevy Suburban 2500 with just over 100,000 miles that I recently purchased. I use it... See more
If you''re looking at this cooler you are probably concerned that your transmission is getting too hot. This cooler will cool it down significantly. Here''s my details.
I have a 2003 Chevy Suburban 2500 with just over 100,000 miles that I recently purchased. I use it around town and tow a 4500# trailer. Recently I was towing in the Northwest hills of Connecticut and the truck''s OEM transmission temp gauge showed 200 degrees, which is the highest I had seen. It usually runs around 140 when the temps are below 70 and progressively higher when the outside temperature is greater. The weather has been around 90 for a few week and I see temps of 180 or 185 without a trailer. I decide to add a cooler and seeing reviews it looked like the quality of Hayden was really good. I even called them and they were very helpful suggesting the 678. I opted of the 679 to get even more cooling.
Installing posed some options. My truck came with a factory cooler about 1/3 the size or the 679 and mounted on a plastic brace that was then mounted on an aluminum cross member just behind the grille. In order to efficiently use the OEM cooler I needed a fit kit, which my local Pep Boys carries, so I went there rather than waiting for delivery and got a Hayden kit 390 as the instructions indicated. Good thing I didn''t order it, because it turns out I needed a kit 393. When I went back to Pep Boy I decided the scrap the OEM cooler and buy another Hayden 679, which wouldn''t need the fit kit, and mount them next to each other. The cooler I bought at Pep Boys was made in Australia and the cooler that came from Amazon was made in Korea, but the quality appeared similar to me. Fully installed, my coolant flows from the transmission to the radiator, then to a Hayden 769 and then another Hayden 679 and back to the Transmission.
Yesterday it was 100 degrees and I took a long drive with no towing load but 6 passengers. Prior to the cooler I would expect to see 185 and the warmest the gauge showed was 150, but was running at 135 most of the time. I would say the two coolers reduced the temps by 40 degrees. Excellent results for an easy job.
69 people found this helpful
Helpful
Report
Dempsey B.
5.0 out of 5 starsVerified Purchase
Keeps my muscle car''s 4L80E cool at all times
Reviewed in the United States on June 5, 2018
I have a 1980 Pontiac Grand Prix. I removed the stock V6 and replaced it with a 454 big block V8, backed by a 4L80E transmission. When I did my engine swap, I also needed to upgrade the radiator (no surprise); the new one has an internal trans fluid cooler but I opted not... See more
I have a 1980 Pontiac Grand Prix. I removed the stock V6 and replaced it with a 454 big block V8, backed by a 4L80E transmission. When I did my engine swap, I also needed to upgrade the radiator (no surprise); the new one has an internal trans fluid cooler but I opted not to use it. Instead, I purchased this Hayden fluid cooler (it being the largest one I could find at 11"x11") and mounted it a couple inches in front of the A/C condenser (figuring that doing so would promote better airflow through this cooler). I have dual electric fans behind the radiator, and when they are on it seems that some air is drawn through the Hayden cooler.

I''ve been running with only this fluid cooler for a year and a half now. My aftermarket transmission controller (TCI EZ-TCU) monitors and displays the trans fluid temp, so I am able to know at a glance if there is any reason for concern. But even through the desert heat here in Utah, I have never seen my fluid temp go above 165^ F... ever. This large Hayden cooler does its job very well.

If you are looking for a way to reduce your automatic transmission fluid temperature, my experience says this is a great way to go. The 679 is an excellent value. I would recommend it to anyone.
24 people found this helpful
Helpful
Report
Amazon Customer
5.0 out of 5 starsVerified Purchase
upgraded from 678
Reviewed in the United States on February 18, 2018
679 upgrade was pretty easy, Back to lowes for more flat aluminum stock. I used a slightly wider/thicker version this time around as there was a little bit more weight. bent/drilled/bolted everything together on the MDX. 7" fan fit perfect with no overlap. I have... See more
679 upgrade was pretty easy, Back to lowes for more flat aluminum stock. I used a slightly wider/thicker version this time around as there was a little bit more weight. bent/drilled/bolted everything together on the MDX. 7" fan fit perfect with no overlap. I have not been able to duplicate the same hills yet with this larger cooler, but the temps look better around town. Will update in fall when it''s time to abuse the MDX tranny pulling a trailer. If you have a 2001-2006 MDX or Pilot, the 679 should be your first stop.

I had the 678 cooler originally installed with a temp controlled 7" fan. The temps on that cooler were much cooler than stock, however I had the room so this was the obvious upgrade. Old 678 would hit 100 deg C on very large hills with a small trailer and the 7" fan didn''t fit too well.

setup:
679 with temp controlled fan is my only transmission cooler. I have bypassed the factory transmission "warmer" in the bottom of the radiator. I live in the south and all the testing I have read is that this synthetic trans fluid will not freeze or thicken unless temps are well below -F. I''ve also found no evidence that the transmission fluid needs to be "warmed" to do its job. Bypassing the stock setup was a no brainer as it only added heat to the trans fluid most of the time..
I moved the old 678 cooler over to be a really overkill power steering fluid cooler.
21 people found this helpful
Helpful
Report
Rey G.
5.0 out of 5 starsVerified Purchase
HIGHLY RECOMMENDED FOR YOUR TOWING MACHINE!
Reviewed in the United States on November 6, 2017
This is probably the best purchase and install I''ve done on my truck (2007 Tahoe LT 4x4). I should have installed this years ago. Now that I''m hauling a 22'' boat/trailer, this has helped me a lot. Without this my Transmission temps would rise up to over 200+ in the DC area... See more
This is probably the best purchase and install I''ve done on my truck (2007 Tahoe LT 4x4). I should have installed this years ago. Now that I''m hauling a 22'' boat/trailer, this has helped me a lot. Without this my Transmission temps would rise up to over 200+ in the DC area summers and the everyday stop and go traffic. And that was without towing anything! WITH this cooler, my average trans temp is now anywhere between 120-135. Hauling a boat this past weekend on a 60+ mile one-way trip, my temp went as high as 155 degrees. That''s with stop and go traffic lights as well as up and down hills. Not bad at all.

I highly recommend this for anyone who''s planning on towing ANYTHING, small or large, or just trying to protect their transmission. Install was easy for your average DIYer but if you don''t know what you''re doing, I would recommend getting a professional to do it for you. I did mine and it took about 1 hour, probably could have done it a lot faster but I like to do things clean and keep my car customizing look professional as possible.
21 people found this helpful
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AmaCust x
5.0 out of 5 starsVerified Purchase
Excellent cooler. Takes a little on install but worth it!
Reviewed in the United States on September 10, 2019
Better than the stock cooler. Its large so it can be tricky to mount on 2005 gmc yukons. I used other reviewers suggestions to use 2in flat aluminum (sold in 4ft at local hardware store) to make crossmembers to attach the cooler to. I fixed straps to existing frame using... See more
Better than the stock cooler. Its large so it can be tricky to mount on 2005 gmc yukons. I used other reviewers suggestions to use 2in flat aluminum (sold in 4ft at local hardware store) to make crossmembers to attach the cooler to. I fixed straps to existing frame using sheet metal screws (I drilled a small pilot hole and the self drilling tips of the screws did the rest. Very solid connection to existing frame. Then bolted cooler to the straps (predrilled the holes for the bolts). I ised the compression fittings other reviewer mentioned for 3/8. Cutting the existing steel lines to remove the ends was very tough without a steel line cutter. I had to use hacksaw and a file. I kept a strong magnet on my tools to pull filings and cuttings out. Lastly, carefully cleaned with qtips to remove any I missed (I could have turned the truck to pump some fluid through and make a mess but would have cleared potentially damaging filings. But wasn''t needed.) I added ptfe to my fittings for a better seal. I believe you could use teflon tape if your fittings leak a little. If I did again I would have cut the passenger side steel line further back because the compression fitting ended up right under the corner of the new cooler and may potentially rub and damage the cooler.
5 people found this helpful
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Karl D. Mueller
5.0 out of 5 starsVerified Purchase
Perfect fit in my 2013 Toyota 4runner
Reviewed in the United States on July 15, 2018
Perfect fit in my 2013 Toyota 4runner. Hoses completely compatible. I got it to fit with the supplied hose, but required careful planning and routing of the hoses. When in doubt buy a little extra from the hardware store, that''s about all you''ll need from this kit. Don''t... See more
Perfect fit in my 2013 Toyota 4runner. Hoses completely compatible. I got it to fit with the supplied hose, but required careful planning and routing of the hoses. When in doubt buy a little extra from the hardware store, that''s about all you''ll need from this kit. Don''t forget to prime this with a bit of ATF if you have a sealed transmission like the 5th gen 4runner (hint: if you don''t have a transmission dipstick, you''ve got a sealed one)

I bought the hayden mounting kit with bendable brackets which helped with the install, probably could have used some bulk strapping from home depot, but this was designed to work with the install so it was worth it.

Dropped the average transmission fluid temp while towing a 4klb trailer from 190 to 160. Uphill it used to get over 200, now it only hits 185. Excellent product and well worth it if you tow or otherwise load-up your transmission.
9 people found this helpful
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phillip honaker
5.0 out of 5 starsVerified Purchase
MUST READ! READ BEFORE ORDERING!
Reviewed in the United States on September 23, 2016
I have a 2007 Suburban LTZ 5.3L with 130K miles on her. I recently purchased a 4900 pound travel trailer. I have 4 boys and my wife and when not pulling the camper, on a day around 80°F or more my transmission temperature would reach around 185° to 195° with the family... See more
I have a 2007 Suburban LTZ 5.3L with 130K miles on her. I recently purchased a 4900 pound travel trailer. I have 4 boys and my wife and when not pulling the camper, on a day around 80°F or more my transmission temperature would reach around 185° to 195° with the family running around town. But usually I would stay around 175° back and forth to work which is an 11 minute drive.

Having said all that, I ordered this transmission cooler kit and ordered the inline kit. I watched a few videos and got started. On my vehicle the entire front clip needed to be removed. It was only about 8 bolts and fog light harnesses. Very simple to remove. Then that opened up the entire front end of the vehicle. I took some extra angle iron I had and fabricated a bracket that ran west to east across the existing cross bars. There was no way I was going to use those cheap "zip tie looking things." I also took the bottom crossmember off(the one already installed) and I turned that one upside down and had to grind off about 2 inches of the lip. That way I could get a real good fit and the top of the transmission cooler fins weren''t rubbing against the hood release. I bought some self tappers and mounted the cooler directly in front of the condenser. I went to Advance Auto and bought 5 ft of 3/8 transmission hose and started my install. I removed the very top line going into the radiator and ran the loop from there, routing all my hoses around the radiator. After installing everything and test driving it, I could not believe what was happening. That 175° trip now was 129° when I pulled into my driveway. I just couldn''t believe it. I am on day 2 after install and still the same! I couldn''t be more satisfied. Super easy to install. Took 3 hours but 1 hour was fabricating metal. I love this thing. Would''ve paid$150 if I knew it was this effective. Thank you Hayden for making this. I haven''t pulled my camper yet but I know she''ll do amazing!
27 people found this helpful
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rlcamazon
5.0 out of 5 starsVerified Purchase
2008 Chevy Equinox 3.4l V6: Installed This Cooler
Reviewed in the United States on October 31, 2020
Installed 2/27/2019 Hayde Trans Cooler #678, 679 Cooler #679 is not listed as fitting 2008 Chevy Equinox 3.4L 6 Cyl. but it does fit and I don''t think it was that much trouble. Installed in a 2008 Chevy Equinox LTZ AWD 3.4L 6 cy. Purchased the model 678 and... See more
Installed 2/27/2019 Hayde Trans Cooler #678, 679
Cooler #679 is not listed as fitting 2008 Chevy Equinox 3.4L 6 Cyl. but it does fit and I don''t think it was that much trouble.
Installed in a 2008 Chevy Equinox LTZ AWD 3.4L 6 cy. Purchased the model 678 and upgraded to 679 which is a little bigger and required since I tow a small RV PopUp camper (3,000 lbs). Towing capacity of this Equinox just enough so I have to be concerned with transmission temperature. Hayden model 678 & 678 are 3/4 inches thick which fits comfortably. Install requires the Haden 397 installation fitting and it''s not included but offered at Amazon. Had some difficulty connecting the 11/32" hose ( provided) to the aluminum tube that returns fluid to transmission. Next time I would consider using a 3/8" hose for this connection since 11/32 is too tight. Installation is not complicated but you have to turn your brain "on" and analyze the provided instructions. Temperatures went down between 18 F to 20 F degrees, so I expect a little better extra cooling with the larger 679 cooler. I would recommend this product to anyone and would buy again.
One person found this helpful
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About Us

Since the invention of the transmission cooler by Mr. Perry Hayden in 1961, Hayden has continued to add innovative products to meet the needs of its customers while investing in continuous improvements and maintaining quality.

Hayden Automotive engineers, manufactures and supplies a wide range of products designed to keep your car, truck or performance vehicle running cool. From fan clutches and electric fans to performance oil and transmission coolers, we’ve got what you need to protect your vehicle from damaging and performance robbing heat.

Features & details

Features

  • Size is 3/4 inch x 11 inch x 11-5/8 inch
  • Class "A" motor homes, large travel trailers, 5th wheel trailers
  • GVWR up to 30,000 pounds, towing up to 10,000 pounds
  • Patented internal turbulation increases heat transfer with minimal pressure drop
  • Pre-drilled mounting brackets for easy installation

Product information

    Additional Information

  • ASIN: B000C3BBKS
  • Customer Reviews: 4.8 out of 5 stars 998Reviews
  • Best Sellers Rank:
    #9,382 in Automotive (See Top 100 in Automotive)
    #1 in Automotive Replacement Engine Cooler Accessories
  • Domestic Shipping : Item can be shipped within U.S. International Shipping : This item can be shipped to select countries outside of the U.S. Learn More
  • Date First Available: June 1, 2006
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

Product guides and documents

Product Documentation (PDF)
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Full content visible, double tap to read brief content.

Have a question?

Find answers in product info, Q&As, reviews

Find answers in product info, Q&As, reviews

Have a question?

Top results Customer Q&A Customer Reviews Product info Post question
There was a problem completing your request. Please try your search again later.
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Related posts

Customer Questions

Sorry, we were unable to perform your search at this time.

There was a problem completing your request. Please try again later.

Don''t see the answer you''re looking for?

Your question might be answered by sellers, manufacturers, or customers who bought this product.

Please make sure that you are posting in the form of a question.

Please enter a question.

Q: Is fit on 2007 gmc 2500 hd?

A: I believe so, buy the additional radiator fitting. Also don’t like mounting to the condens…

Timothy Macfarlane | 4 years ago

Q: I have a ''04 chevy trailblazer 4.2 i6 4wd with factory trans cooler. looking to upgrade t…

A: I would leave the factory trans cooler in place and add the Hayden trans cooler in line if…

Rick W. | 5 months ago

Q: any offer if i buy many quantity ??

A: I wish we could offer a discount for a bulk order, however, there is so much competition o…

Seller Oregon Performance Transmissio… | 9 years ago

Q: Did you bypass stock trans cooler on 4runner?

A: I did it on a Nissan Rogue s , am using both now , but planning on by pass it when I hit t…

G shep | 1 year ago

Customer reviews

4.8 out of 54.8 out of 5
998 global ratings

Top reviews from the United States

John H Isaacs
5.0 out of 5 starsVerified Purchase
Get significant cooler with the 679.
Reviewed in the United States on July 23, 2016
If you''re looking at this cooler you are probably concerned that your transmission is getting too hot. This cooler will cool it down significantly. Here''s my details. I have a 2003 Chevy Suburban 2500 with just over 100,000 miles that I recently purchased. I use it... See more
If you''re looking at this cooler you are probably concerned that your transmission is getting too hot. This cooler will cool it down significantly. Here''s my details.
I have a 2003 Chevy Suburban 2500 with just over 100,000 miles that I recently purchased. I use it around town and tow a 4500# trailer. Recently I was towing in the Northwest hills of Connecticut and the truck''s OEM transmission temp gauge showed 200 degrees, which is the highest I had seen. It usually runs around 140 when the temps are below 70 and progressively higher when the outside temperature is greater. The weather has been around 90 for a few week and I see temps of 180 or 185 without a trailer. I decide to add a cooler and seeing reviews it looked like the quality of Hayden was really good. I even called them and they were very helpful suggesting the 678. I opted of the 679 to get even more cooling.
Installing posed some options. My truck came with a factory cooler about 1/3 the size or the 679 and mounted on a plastic brace that was then mounted on an aluminum cross member just behind the grille. In order to efficiently use the OEM cooler I needed a fit kit, which my local Pep Boys carries, so I went there rather than waiting for delivery and got a Hayden kit 390 as the instructions indicated. Good thing I didn''t order it, because it turns out I needed a kit 393. When I went back to Pep Boy I decided the scrap the OEM cooler and buy another Hayden 679, which wouldn''t need the fit kit, and mount them next to each other. The cooler I bought at Pep Boys was made in Australia and the cooler that came from Amazon was made in Korea, but the quality appeared similar to me. Fully installed, my coolant flows from the transmission to the radiator, then to a Hayden 769 and then another Hayden 679 and back to the Transmission.
Yesterday it was 100 degrees and I took a long drive with no towing load but 6 passengers. Prior to the cooler I would expect to see 185 and the warmest the gauge showed was 150, but was running at 135 most of the time. I would say the two coolers reduced the temps by 40 degrees. Excellent results for an easy job.
69 people found this helpful
Helpful
Report
Dempsey B.
5.0 out of 5 starsVerified Purchase
Keeps my muscle car''s 4L80E cool at all times
Reviewed in the United States on June 5, 2018
I have a 1980 Pontiac Grand Prix. I removed the stock V6 and replaced it with a 454 big block V8, backed by a 4L80E transmission. When I did my engine swap, I also needed to upgrade the radiator (no surprise); the new one has an internal trans fluid cooler but I opted not... See more
I have a 1980 Pontiac Grand Prix. I removed the stock V6 and replaced it with a 454 big block V8, backed by a 4L80E transmission. When I did my engine swap, I also needed to upgrade the radiator (no surprise); the new one has an internal trans fluid cooler but I opted not to use it. Instead, I purchased this Hayden fluid cooler (it being the largest one I could find at 11"x11") and mounted it a couple inches in front of the A/C condenser (figuring that doing so would promote better airflow through this cooler). I have dual electric fans behind the radiator, and when they are on it seems that some air is drawn through the Hayden cooler.

I''ve been running with only this fluid cooler for a year and a half now. My aftermarket transmission controller (TCI EZ-TCU) monitors and displays the trans fluid temp, so I am able to know at a glance if there is any reason for concern. But even through the desert heat here in Utah, I have never seen my fluid temp go above 165^ F... ever. This large Hayden cooler does its job very well.

If you are looking for a way to reduce your automatic transmission fluid temperature, my experience says this is a great way to go. The 679 is an excellent value. I would recommend it to anyone.
24 people found this helpful
Helpful
Report
Amazon Customer
5.0 out of 5 starsVerified Purchase
upgraded from 678
Reviewed in the United States on February 18, 2018
679 upgrade was pretty easy, Back to lowes for more flat aluminum stock. I used a slightly wider/thicker version this time around as there was a little bit more weight. bent/drilled/bolted everything together on the MDX. 7" fan fit perfect with no overlap. I have... See more
679 upgrade was pretty easy, Back to lowes for more flat aluminum stock. I used a slightly wider/thicker version this time around as there was a little bit more weight. bent/drilled/bolted everything together on the MDX. 7" fan fit perfect with no overlap. I have not been able to duplicate the same hills yet with this larger cooler, but the temps look better around town. Will update in fall when it''s time to abuse the MDX tranny pulling a trailer. If you have a 2001-2006 MDX or Pilot, the 679 should be your first stop.

I had the 678 cooler originally installed with a temp controlled 7" fan. The temps on that cooler were much cooler than stock, however I had the room so this was the obvious upgrade. Old 678 would hit 100 deg C on very large hills with a small trailer and the 7" fan didn''t fit too well.

setup:
679 with temp controlled fan is my only transmission cooler. I have bypassed the factory transmission "warmer" in the bottom of the radiator. I live in the south and all the testing I have read is that this synthetic trans fluid will not freeze or thicken unless temps are well below -F. I''ve also found no evidence that the transmission fluid needs to be "warmed" to do its job. Bypassing the stock setup was a no brainer as it only added heat to the trans fluid most of the time..
I moved the old 678 cooler over to be a really overkill power steering fluid cooler.
21 people found this helpful
Helpful
Report
Rey G.
5.0 out of 5 starsVerified Purchase
HIGHLY RECOMMENDED FOR YOUR TOWING MACHINE!
Reviewed in the United States on November 6, 2017
This is probably the best purchase and install I''ve done on my truck (2007 Tahoe LT 4x4). I should have installed this years ago. Now that I''m hauling a 22'' boat/trailer, this has helped me a lot. Without this my Transmission temps would rise up to over 200+ in the DC area... See more
This is probably the best purchase and install I''ve done on my truck (2007 Tahoe LT 4x4). I should have installed this years ago. Now that I''m hauling a 22'' boat/trailer, this has helped me a lot. Without this my Transmission temps would rise up to over 200+ in the DC area summers and the everyday stop and go traffic. And that was without towing anything! WITH this cooler, my average trans temp is now anywhere between 120-135. Hauling a boat this past weekend on a 60+ mile one-way trip, my temp went as high as 155 degrees. That''s with stop and go traffic lights as well as up and down hills. Not bad at all.

I highly recommend this for anyone who''s planning on towing ANYTHING, small or large, or just trying to protect their transmission. Install was easy for your average DIYer but if you don''t know what you''re doing, I would recommend getting a professional to do it for you. I did mine and it took about 1 hour, probably could have done it a lot faster but I like to do things clean and keep my car customizing look professional as possible.
21 people found this helpful
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AmaCust x
5.0 out of 5 starsVerified Purchase
Excellent cooler. Takes a little on install but worth it!
Reviewed in the United States on September 10, 2019
Better than the stock cooler. Its large so it can be tricky to mount on 2005 gmc yukons. I used other reviewers suggestions to use 2in flat aluminum (sold in 4ft at local hardware store) to make crossmembers to attach the cooler to. I fixed straps to existing frame using... See more
Better than the stock cooler. Its large so it can be tricky to mount on 2005 gmc yukons. I used other reviewers suggestions to use 2in flat aluminum (sold in 4ft at local hardware store) to make crossmembers to attach the cooler to. I fixed straps to existing frame using sheet metal screws (I drilled a small pilot hole and the self drilling tips of the screws did the rest. Very solid connection to existing frame. Then bolted cooler to the straps (predrilled the holes for the bolts). I ised the compression fittings other reviewer mentioned for 3/8. Cutting the existing steel lines to remove the ends was very tough without a steel line cutter. I had to use hacksaw and a file. I kept a strong magnet on my tools to pull filings and cuttings out. Lastly, carefully cleaned with qtips to remove any I missed (I could have turned the truck to pump some fluid through and make a mess but would have cleared potentially damaging filings. But wasn''t needed.) I added ptfe to my fittings for a better seal. I believe you could use teflon tape if your fittings leak a little. If I did again I would have cut the passenger side steel line further back because the compression fitting ended up right under the corner of the new cooler and may potentially rub and damage the cooler.
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Karl D. Mueller
5.0 out of 5 starsVerified Purchase
Perfect fit in my 2013 Toyota 4runner
Reviewed in the United States on July 15, 2018
Perfect fit in my 2013 Toyota 4runner. Hoses completely compatible. I got it to fit with the supplied hose, but required careful planning and routing of the hoses. When in doubt buy a little extra from the hardware store, that''s about all you''ll need from this kit. Don''t... See more
Perfect fit in my 2013 Toyota 4runner. Hoses completely compatible. I got it to fit with the supplied hose, but required careful planning and routing of the hoses. When in doubt buy a little extra from the hardware store, that''s about all you''ll need from this kit. Don''t forget to prime this with a bit of ATF if you have a sealed transmission like the 5th gen 4runner (hint: if you don''t have a transmission dipstick, you''ve got a sealed one)

I bought the hayden mounting kit with bendable brackets which helped with the install, probably could have used some bulk strapping from home depot, but this was designed to work with the install so it was worth it.

Dropped the average transmission fluid temp while towing a 4klb trailer from 190 to 160. Uphill it used to get over 200, now it only hits 185. Excellent product and well worth it if you tow or otherwise load-up your transmission.
9 people found this helpful
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phillip honaker
5.0 out of 5 starsVerified Purchase
MUST READ! READ BEFORE ORDERING!
Reviewed in the United States on September 23, 2016
I have a 2007 Suburban LTZ 5.3L with 130K miles on her. I recently purchased a 4900 pound travel trailer. I have 4 boys and my wife and when not pulling the camper, on a day around 80°F or more my transmission temperature would reach around 185° to 195° with the family... See more
I have a 2007 Suburban LTZ 5.3L with 130K miles on her. I recently purchased a 4900 pound travel trailer. I have 4 boys and my wife and when not pulling the camper, on a day around 80°F or more my transmission temperature would reach around 185° to 195° with the family running around town. But usually I would stay around 175° back and forth to work which is an 11 minute drive.

Having said all that, I ordered this transmission cooler kit and ordered the inline kit. I watched a few videos and got started. On my vehicle the entire front clip needed to be removed. It was only about 8 bolts and fog light harnesses. Very simple to remove. Then that opened up the entire front end of the vehicle. I took some extra angle iron I had and fabricated a bracket that ran west to east across the existing cross bars. There was no way I was going to use those cheap "zip tie looking things." I also took the bottom crossmember off(the one already installed) and I turned that one upside down and had to grind off about 2 inches of the lip. That way I could get a real good fit and the top of the transmission cooler fins weren''t rubbing against the hood release. I bought some self tappers and mounted the cooler directly in front of the condenser. I went to Advance Auto and bought 5 ft of 3/8 transmission hose and started my install. I removed the very top line going into the radiator and ran the loop from there, routing all my hoses around the radiator. After installing everything and test driving it, I could not believe what was happening. That 175° trip now was 129° when I pulled into my driveway. I just couldn''t believe it. I am on day 2 after install and still the same! I couldn''t be more satisfied. Super easy to install. Took 3 hours but 1 hour was fabricating metal. I love this thing. Would''ve paid$150 if I knew it was this effective. Thank you Hayden for making this. I haven''t pulled my camper yet but I know she''ll do amazing!
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rlcamazon
5.0 out of 5 starsVerified Purchase
2008 Chevy Equinox 3.4l V6: Installed This Cooler
Reviewed in the United States on October 31, 2020
Installed 2/27/2019 Hayde Trans Cooler #678, 679 Cooler #679 is not listed as fitting 2008 Chevy Equinox 3.4L 6 Cyl. but it does fit and I don''t think it was that much trouble. Installed in a 2008 Chevy Equinox LTZ AWD 3.4L 6 cy. Purchased the model 678 and... See more
Installed 2/27/2019 Hayde Trans Cooler #678, 679
Cooler #679 is not listed as fitting 2008 Chevy Equinox 3.4L 6 Cyl. but it does fit and I don''t think it was that much trouble.
Installed in a 2008 Chevy Equinox LTZ AWD 3.4L 6 cy. Purchased the model 678 and upgraded to 679 which is a little bigger and required since I tow a small RV PopUp camper (3,000 lbs). Towing capacity of this Equinox just enough so I have to be concerned with transmission temperature. Hayden model 678 & 678 are 3/4 inches thick which fits comfortably. Install requires the Haden 397 installation fitting and it''s not included but offered at Amazon. Had some difficulty connecting the 11/32" hose ( provided) to the aluminum tube that returns fluid to transmission. Next time I would consider using a 3/8" hose for this connection since 11/32 is too tight. Installation is not complicated but you have to turn your brain "on" and analyze the provided instructions. Temperatures went down between 18 F to 20 F degrees, so I expect a little better extra cooling with the larger 679 cooler. I would recommend this product to anyone and would buy again.
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Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale

Hayden Automotive 679 Rapid-Cool Plate and sale popular Fin Transmission Cooler, Black, 11 Inch outlet sale