Transmission Cooler Install with Radiator and Thermostat Replacement

Did our video help you? If so, consider buying us a beer: https://bit.ly/3feE6tJ

This is a video showing how to add an external transmission cooler to your 3rd Generation Toyota 4runner and replacing the radiator and thermostat in the process. Even though this is done on a Toyota 4runner, the information provided could help you with a trans cooler install on almost any other vehicle.

*PARTS*
*Thermostat #90916-03075
https://amzn.to/2KJgNWp

*Thermostat O-Ring Gasket #16325-62010
https://amzn.to/34eZTqs

*Radiator #16410-YZZAJ (This is just like the OEM one that came on the vehicle when it was new)
https://amzn.to/2O96iOj

*Radiator #16410-AZ011 (This seems to be what Toyota parts sellers like Camelback are now offering. It's more affordable but doesn't seem to be as well built as the original. I put one of these on my 98 4runner. I have a feeling the supplier making the #16410-YZZAJ stopped producing them and the ones still available are old stock.) https://amzn.to/2O96iOj

*Upper Radiator Hose #16571-62070
https://amzn.to/2D3bi0z

*Lower Radiator Hose#16572-62090
https://amzn.to/2O97Fwr

*Radiator Cap #16401-20353
https://amzn.to/2XBm8UT

*Toyota Red Long Life Coolant Concentrate (Needs to be mixed with Distilled Water)
https://amzn.to/37lyhBL

*Distilled Water - Pick this up at a grocery store

*Magnefine 3/8" Magnetic In-line Transmission Filter
https://amzn.to/35p6heN

*B&M 70264 SuperCooler Automatic Transmission Cooer
https://amzn.to/3eyiP81

*3/8" Transmission Oil Cooler Hose (8 feet) - I suggest you just visit your local auto parts store to buy this and some hose clamps to go with it.

*Valvoline Max Life Full Synthetic ATF
https://amzn.to/2Oaco0F

*Bluetooth OBD II Reader I use:
https://amzn.to/2MKjLJU

*This switch is a nice addition to the OBDII reader because the reader draws a small amount of power from your battery even when the vehicle is off. If you let the vehicle sit for long periods of time, it could drain your battery. This switch allows you to turn it off:
https://amzn.to/2t20af9

*This looks like a nice custom bracket for your trans cooler install. I learned about it on 10/12/23. It fits 2 Hayden coolers and one made by Derale. https://iconic-fabrication.myshopify....


*HELPFUL TOOLS*
If you're looking for other tools not used in this video, check out Timmy's Master Tool List.
https://www.amazon.com/shop/timmythet...

*6 Ton Jack Stands
https://amzn.to/2MM91w6

*1/4" and 3/8" Flex Head Ratchet Set
https://amzn.to/2ql8nNA

*3/8” Drive Regular Extension Set
https://amzn.to/2OehCao

*Milwaukee Mi12 Cordless Ratchet
https://amzn.to/2utRZsE

*Milwaukee M12 Battery
https://amzn.to/3FJZO1j

*Milwaukee M12 High Capacity Battery
https://amzn.to/2HEFTpu

*Milwaukee M12 Battery Charger
https://amzn.to/2uo2o9x

*Double-Sided Screwdriver
https://amzn.to/2NRcydr

*Right Angle Needle Nose Piers
https://amzn.to/2VYUro8

*Adjustable Spark Plug Wire Puller (To help get cooler hoses loose)
https://amzn.to/2MKWrMw

*CDI 3/8" Drive Foot Pound Torque Wrench
https://amzn.to/2U2vUA4

*CDI 3/8" Drive Inch Pound Torque Wrench
https://amzn.to/2J8W8Kz

PVC Pipe Cutters
https://amzn.to/2XxALIT

*Lisle Spill-Free Funnel (Makes filling your radiator and burping the system of air easier)
https://amzn.to/2SnrPFV

*18 Quart Food Storage Container (Convenient to drain coolant into)
https://amzn.to/2Bm3q9X

*4 Quart Measuring Cup (So you can make your 50/50 Coolant Mix)
https://amzn.to/2Gq4a0W

**As Ebay Partner Network members, we earn commissions from qualifying purchases.
**As Amazon Associates we earn from qualifying purchases.

NOTE DK327 commented and told me the way I ran the lines with the inlet at the top and the outlet on the bottom is technically wrong and he is right. The B&M website does say when mounting the cooler sideways that the inlet should be at the bottom and the outlet at the top. Read my reply to his comment for more information regarding this. I'm having no problem with the way I set it up and I've been monitoring my transmission temperature every time I get behind the wheel. I've seen around a 20 degree temp drop across the board which corresponds to what I've heard is the average temperature drop with the cooler I installed. If it were an easy process to just switch the lines, I'd probably do it, but I'd have to rerun the upper line because it would kink switching it to the bottom and running the lines was quite a bit of work. If you do decide to mount it sideways like I did, just connect the inlet line to the bottom connection and the outlet on the top connection like B&M recommends.