Heating and Cooling› Oil and Fluid Coolers

DuraMax Tuner

2003-2005 GM 6.6L Duramax Performance Transmission Cooler (Purple Clips)

$577.48

SKU: D06C 124060300

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The PPE Performance Transmission Cooler is a direct bolt-on replacement part that lowers fluid temperatures up to an additional 20 to 30 degrees over the stock unit and provides 60% more heat rejection. It is designed for 2003-2005 GM 6.6L Duramax trucks with purple clips in the transmission cooler lines.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDuraMax Tuner
Part NumberD06C 124060300

Videos

My GMC Duramax Gets COOLER!!!!

My GMC Duramax Gets COOLER!!!!
My DURAMAX Can Tow Anything With This New SETUP!

My DURAMAX Can Tow Anything With This New SETUP!
The GMC DURAMAX Gets New MODS!!!

The GMC DURAMAX Gets New MODS!!!

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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