11-14 6.6L LML Allison Transmission Cooler Lines

11-14 6.6L GM Duramax LML Allison Transmission Line Set

SKU: FPE-TL-LML-1114 Category:


2011 – 2014 6.6L LML Duramax Allison Transmission Cooler Line Set

Fleece Performance # FPE-TL-LML-1114

*Not for use on Cab & Chassis applications*

Replace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our kit is the most complete replacement transmission line kit available for your LML truck. With an increased diameter over stock and heavy duty hose wrap, these lines will increase overall flow and protect against future failures.

Kit Includes:

  • (3) 5/8″ ID transmission lines with AN fittings
  • (6) 7/8″-14 O-ring to -10AN fittings
  • (2) Large OD washers
  • Double hose clamps, locking cable ties, and fir tree cable clamps


  • Increased diameter over stock – 5/8″ hose
  • Explosion proof polyester hose protection sleeve

Additional information

Weight 4 lbs