2001-2019 Allison Transmission Cooler Lines - Fleece Performance

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 LB7, LLY, LBZ, LMM, LML, and L5P truck!  It includes all of the necessary fittings whether your truck is running a stock radiator or Setrab equipped radiator. Please be sure to select the proper year for your truck!