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75411 DRP Transmission Cooler Lines 1/2" - GM 2015-2016

SKU: DRP75411
Mftr. Part#: 75411
UPC: 887753065766
Manufacturer: Deviant Race Parts
2015-2016 GM 6.6L Duramax LML - GM's factory transmission lines leave something to be desired. DRP's 1/2-inch cooler line kit completely replace the OEM lines with 2300psi rated industrial hydraulic lines.

PRODUCT DETAILS (click to expand)

Mftr. Part#75411
Weight (lbs.):8.10 lbs.
Dimensions:4.50" x 14.50" x 14.00"

PRODUCT SPECS (click to expand)

Attribute nameAttribute value
Product TypeTransmission Cooler Lines
Line Size1/2"
Transmission TypeAllison A1000


Deviant Race Parts LEAK FREE Transmission Repair lines for 2015-16 GM 6.6L Duramax equipped Pickups with the Allison 1000 Transmission.

If you have the dreaded leaky transmission cooler lines on your GM full size Duramax/Allison pick up truck this is the answer you have been looking for!

For a permanant solution to your leaky transmission lines choose the Diesel Race Parts Transmission Cooler Repair Lines. Made from 1/2" industrial hose that is rated at 2300 psi.

This will cure your problems especially in the cold weather climates where this problem is most prevelant.


  • 2300psi rated Industrial Strength Hydraulic Lines
  • All necessary fittings and adapters to bolt up to factory locations
  • Full, step by step, instructions
  • Install Difficulty: 2 out of 5 wrenches (1 wrench being easiest)