PPE Xtreme Allison Transmission Cooler, 2001-2005

Part# 124060000


WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

PPE Xtreme Transmission Cooler

Fits 2001-2005 Chevy/GMC 2500/3500 HD Duramax

The best way to increase the longevity of your transmission is to keep it cool. Heat is the transmission’s biggest enemy. PPE has the industry’s leading solution. PPE’s Performance Transmission Coolers are bolt-on replacement parts. With a 60% increase in surface area PPE coolers will lower your truck’s fluid temperatures up to 30 degrees when compared to stock. This cooler will pay for itself because of increased fluid and transmission life.

▪ 60% more surface area for heat rejection

▪ Retains use of factory oil lines


  • 124060000 2001-2003 Cooler (connectors with Orange Clips)
  • 124060300 2004-2005 Cooler (connectors with Purple Clips)

DmaxStore Note: When replacing the transmission cooler, you will lose about 1-2 quarts of transmission fluid. We recommend using Transynd Transmission Fluid

Customer Reviews

Based on 2 reviews

clean setup, Temps are lower now then before when im towing my camper. Only issue I had was the install instructions weren't 100% clear but after fiddling around and going on a different site to show step by step instructions its good


Kit is pretty cut and dry directions are okay if you are inclined enough, my temps haven\'t went over 155F so I\'m happy with the performance and I did the Fleece trans lines as well with the cooler. My only issue was adjusting the hood latch, the cooler was against the latch support so I raised the support and lowered the latch easy peasy