Hayden Automotive 698 Transmission Oil Cooler

Couldn't be happier. Installation was obviously fairly difficult, but it came with everything I needed to ensure a tight fit. I've been able to tow cross-country, in and out of mountains, in summer, without temperatures becoming concerning even while close to my vehicle's max towing capacity.

I installed this as a additional cooler to the OEM radiator cooler. Ironically.. The cooler holes lined up perfectly with the threaded factory holes for where the two horns are secured.I added one threaded nut insert on the bottom with a piece of EPDM rubber to secure the bottom. It's very solid. I relocated the horns on the sides and extended the wires for the horns with crimp heat shrink butt connector.Cooler itself is very good quality. Has the internal bypass for colder temps.This size is probably overkill for a 4cyl honda but the price difference for the smaller one was only a few dollars.Has 3/8" barb fitting inlet and outlet. I used single ear crimp type clamps instead of screw clamps. I ran this cooler in parallel with oem radiator cooler. So that this cooler is on the return side of the radiator cooler lines.So.. Transmission outlet --> radiator cooler --> Hayden 698 --> transmission inlet.

Amazon listed it as a direct replacement for a 2002 Chevy Tahoe but after receipt and comparison, it's obvious that it has to be custom adapted and mounted as either a supplemental cooler or a replacement for the stock external cooler. I've ordered a actual direct replacement cooler for now and will hang on to this one and pipe it in if summer trans temps don't stay low enough when towing. Can't offer a opinion on effectiveness as I have not installed it and placed in operation. The 4 star rating is solely based on the incorrect description.

Don’t buy a knock off when this American cooler is so well engineered. Solidly built. When dealing with a trans cooler always go bigger than what u need. This cooler has a built in thermostat that lets your trans warm up then keeps it cool. Plug n play. Very happy.

Installed this on our 2014 4Runner and it's made a huge difference when towing our 3,000lb camper. Temps would hit 225f when towing before, and hang around 190f now. Very happy with the results, great value for the money!

Have not yet installed but the quality is obviously high.

It was a good little cooler for about two months. Then, near the one of the hose connections, it split… like bad! Bad QC and manufacturing. Could have lead to a far more serious problem if I wouldn’t have caught it when I did. Shame.

This is easy to install and will SAVE YOUR TRANSMISSIONwith today's modern vehicles it's important that temperature stays where they need to be.Not too cold so the template control built into the cooler is a must!