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Non-Domestic Product: No

Custom Bundle: No

Fitment Type: Direct Replacement

Items Included: High performance oil cooler

Manufacturer Part Number: 124060300

Mounting Hardware Included: No

Material: Aluminum

Modified Item: No

Brand: PPE Pacific Performance Engineering

Type: Transmission Oil Cooler

Manufacturer Warranty: 1 Year

Quantity Sold: sold individually

Country/Region of Manufacture: United States

Universal Fitment: No

Performance Part: Yes

Duramax Performance

Performance Transmission Cooler Purple Clips 2003-2005

fits 2003-2005 GM 6.6L with Allison 1000 Transmission


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

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 limited lifetime warranty.


Note: 2001-2005 Allison 1000/2000 Duramax/Gas Engines.

- Before ordering -

Check the factory transmission cooler from your truck check the color of the clips in the fittings that connect the transmission cooler to the cooler lines.

Use PPE part number (124060000) for 2001-2003 Cooler - connectors with Orange Clips.

Use PPE part number (124060300) for 2003-2005 Cooler - connectors with Purple Clips.

Please visit our store for more great transmission parts for your projects

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