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PPE Performance Transmission Cooler 01-10 GM 6.6L Duramax

PPE’s Performance Transmission Cooler is a direct bolt-on replacement part that lowers the fluid temperatures up to an additional 20 to 30 degrees over the stock unit and comes with a lifetime warranty.
Pricing: $296.99

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Covered by a lifetime warranty.

Excess heat is the #1 killer of transmissions. For individuals who tow, race or simply run their diesel hard, proper cooling of your transmission fluid is one of the most important things that you can do to increase the life of your transmission. When the mainline pressure is increased with upgrades such as a high-performance transmission kit, your transmission generates additional heat. A PPE Performance Transmission Cooler is critical in such situations.



  • Increased surface area provides 60% more heat rejection
  • Factory-fit

2001-2003 Allison-equipped GM HD vehicles (124060000)

2003-2005 Allison-equipped GM HD vehicles (124060300)

Installation Guide: 124060000 124060300_Trans Cooler_v10B.pdf

2006-2010 Allison-equipped GM HD vehicles (124062000)

Installation Guide: 124062000 Trans Cooler 06-10_v4B.pdf


Shipping Information

  • Item Requires Shipping
  • 20.0 lbs.
  • W20.0000” x H20.0000” x L12.0000”
  • Free Ground Shipping for orders over $49.95 Lower 48 States (some exclusions apply)

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