2004-2005 5/8" Allison transmission cooler hose set #50200




Product Description

(RECOMMENDED FOR APPLICATIONS REQUIRING HIGHER FLOW THAN NORMAL. Examples: heavy towing, chipped ecu, larger turbo, propane injection, or modified transmission.)

This is a fix for the commonly leaking transmission cooler hoses for 2004-2005 Chevy, and GMC trucks equipped with the Allison 1000 transmission behind the 6.6 liter duramax, and 8.1l gas engine. These are made out of 5/8" id Gates hydraulic hose with Gates Megacrimp ends. These hoses will handle the pressure, and temperature that the factory hoses will not. Included is everything to make the conversion possible, except for the tools. I also included detailed instructions, which includes a list of required tools to perform the job properly.

Our 5/8" sets may lower transmission temperature up to 40 degrees, based on input from customers.


  • Manufactured by: Red's Auto Rehab


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