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DHD 100-506 Duramax Transmission Cooler Line Repair Kit LB7/LLY 2001-2005 Triple AN Line

100-506 - 11C
No Welding, Leak Free Compression Fittings
Pricing: $275.00

Free Shipping


Our HD series LB7/LLY transmission cooler line repair kit is popular amongst customers looking for superior durability at an economical price. This is the only guaranteed leak proof cooler line service kit available in the aftermarket. These repair kits are designed to replace the failure prone rubber sections of your OE transmission cooler lines. Each DHD line section features high quality -10AN braided stainless lines with military grade crimps.  Kits are pre-assembled and come with black AN compression fittings.


  • Leak Proof -10 Stainless Braided Flex Hose
  • Stainless Captured Line Nuts
  • Military Grade Hydraulic Crimps
  • Black -10 Billet AN Compression Fittings
  • Does Not Require Hard Line Removal
  • Maintains OE Routing and Fit
  • Wont Rub Through Like Standard Hydraulic Hose

Tools required:

  • Small Tubing Cutters
  • Two 1" Wrenches

Install Sheet: Trans Line Repair

  • 2001-2005 LB7 LLY Equipped 5 Speed Allison Equipped Trucks



Shipping Information

  • Item Requires Shipping
  • 4.0 lbs.
  • W4.0000” x H4.0000” x L20.0000”
  • Free Shipping

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