Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Transmission Cooler Lights>Work Lights 1975-1986 Chevrolet K5 Blazer (Front

1975-1986 Chevrolet K5 Blazer (Front

2011-2020 Ram 2500 Mega Cab Pickup

1986-1995 Toyota Pickup (Front) (Drive: 4WD / Qualifier: with Front Raised Height 0 (in) to 1

1995-2003 Dodge Ram 1500 Van (Rear)

Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Transmission Cooler Lights>Work Lights 1975-1986 Chevrolet K5 Blazer (FrontThe factory transmission oil cooler on your 2003 2007 Dodge Ram 5. 9L Cummins is a liquid to liquid cooling unit, utilizing the engines cooling system to cool the transmission fluid during warm outside temperatures and warm the fluid during cold outside temperatures. This design is tried and true, and it works. Until it doesnt. When they wear out and fail, it can leak coolant into your transmission fluid. Mixing coolant into your transmission fluid