parker.rowe wrote:
Check rock auto and see if they carry the HD cooling radiator for the truck. Then you can see what the difference is between that and the standard one.
Yes, RockAuto have a specific part number for "HD" radiator with built-in oil cooler and it's listed for "RAV4 w/ towing package" in 2017-18. Retail price is 80$ USD for the radiator assembly.
Now I need to figure out the other portion of the oil cooling system.
Back several years ago, I owned a 2010 Jeep Patriot 4WD with the 2.4L where I haven't the factory tow package that increase towing cap from 1000 lb to 2000 lb, but the kit was sold directly at the dealer (MOPAR) for like 150$ and it include a secondary radiator, mounts, all hoses and the metal part that does between oil filter and the engine to bring coolant to cool the oil. The installation was super easy and I did it myself in my driveway in about 2 hour! Then I towed a 1600 pounds popup camper (not the one I own currently, a much bigger one) for thousands and thousands of miles without an issue.
I wish that Toyota did the same for the RAV4, but apparently they don't! However I am pretty sure that I can build my own "kit" from aftermarket/jobber parts. I found the radiator assembly, now I need to find the part that bring coolant to the engine oil. For the coolant hose it's not a big deal since I can use universal coolant hose sold in bulk.
