Performance Duramax 5/8" Transmission Cooler Line Kit 01-16 GM
Performance Duramax 5/8" Transmission Cooler Line Kit 01-16 GM
Performance Duramax 5/8" Transmission Cooler Line Kit – 2001-2016 GM
Upgrade your transmission cooling system with this heavy-duty 5/8" transmission cooler line kit, engineered specifically for 2001–2016 GM Duramax diesel trucks. Designed to handle the increased heat demands of performance-built transmissions, this kit replaces weak factory lines with reinforced, high-flow lines that keep your transmission temps in check under tow, haul, or race conditions.
Do you have leaky transmission lines? This is the last set of transmission lines you'll ever need.
We have developed the most durable, serviceable, and the ONLY DOT-approved transmission line set with a LIFETIME warranty. All of these lines are made by hand, in-house, with equipment we own, meaning that we have complete control over quality and know that each line is being made to our exact specifications.
Includes:
-Complete 3-piece replacement line set and all necessary fittings for the truck side, zip ties, and an extra O-ring.
-Instructions
-Lifetime Warranty
-Real customer service you can call or text!
Features:
-5/8" flame and abrasion-resistant hose rated for 4000psi- SIGNIFICANTLY more than both OEM and built transmissions require
-Stainless JIC ORB fittings- no aluminum to corrode or crack
-Our own specific line lengths and fittings tailored specifically to each truck
Fitment notes: Please see pictures if you have additional questions:
-If you have an aftermarket radiator, you will need M22 fittings instead of OE-style to JIC. This can be easily determined if your radiator has a hex-shaped fitting BEHIND the OE-style transmission cooler fittings.
2001-2002 Allison transmission cooler inlet/outlet fittings had a smaller 3/4" thread diameter than later 7/8" units. If you think your transmission has been swapped with a later unit, you can measure the original trans cooler fitting in the transmission or reference the build plate found on the passenger-side of the transmission. If you need help identifying your fittings please contact us!