Fluid Cooler
Fits 6 speed transmission; Heavy Duty Trans Cooling System (KNP); w/ RPO Code 4639,5464,9344,7192,1509,0895,7162; 6 Speed Trans.or 4 speed transmission; Heavy Duty Trans Cooling System (KNP); w/ RPO Code 4639,5464,9344,7192,1509,0895,7162; 4 Speed Trans.