Deviant (73411) 1/2" Transmission Cooler Repair Lines 2001-2005 Duramax

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Deviant 1/2" Transmission Cooler Repair Lines 01-05 Duramax 73411

Deviant Race Parts LEAK FREE Transmission Repair lines for 01-05 GM 6.6L Duramax equipped Pickups with the Allison 1000 Transmission.

GM's factory transmission lines leave something to be desired. DRP saw a need to build a high quality, LIFETIME WARRANTED, part that completely replace the OEM lines. With thousands sold, we can say we've solved the problem.


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