Frame Rail Transmission Cooler Review

The one or dual pass internal fluid passages within heat sink transmission coolers is a lot larger than other coolers which allows the fluid to stay in the cooler longer to cool.

Frame rail transmission cooler review.

The bmw power steering cooling system is nothing more than a heat pipe see pix. This unit mounts on it s own and doesn t interfere with existing components. With the same 1 2 copper tubing expanded into aluminum cooling fins and embossed turbulators as derale s larger transmission coolers these frame rail mount transmission coolers use a slimer design to enable frame mounting specifically for limited space applications. Because of their design heat sink transmission coolers are used in remote locations such as a frame rail close to the transmission.

Heat sink coolers utilize a finned construction that allows for efficient heat dispersion across the cooler s entire surface which provides cooling in areas with less air flow. When it comes to automatic transmission coolers bigger is always better. I used this rail transmission cooler to replace my factory power steering cooling in my e46 bmw 3 series 1999 2004. All new transmission cooler that fits along the frame rail or other out of the way locations and still delivers exceptional cooling.

The optimal temperature for this fluid and your transmission is 170 degrees fahrenheit or. This cooler measures 8 1 4 x 13 inches earl s 24200erl. Heat sink transmission coolers or frame mounted transmission coolers are the least common type of transmission cooler. Earl s offers coolers in a wide range of configurations.

Extends life of transmission. Measures 17 5 overall length 2 5 overall width and 1 75 overall height. This is a 2 row cooling design that has a 6 an inlet size and comes with all necessary hardware. It s extremely effective and is well made.

It s big but as indicated in the text it s impossible to overcool an automatic transmission. With a few minor modification to the frame rail transmission removing the mounting bracket and to the bmw hoses cutting the quick connect this. I don t know how much can be said about an oil cooler like this but i recommend this part. I didn t want a cooler that gets zip tied to the existing radiator.