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Heating and Cooling› Oil and Fluid Coolers
Fleece Performance
Fleece Performance 01-05 GM Duramax 6.6L LB7/LLY Allison Transmission Cooler Lines
SKU: F007 FPE-TL-LB7-LLY
Easy — 1–2 hours
Overview
The kit includes all necessary fittings and adapters for a direct bolt-on installation to factory locations. Full, step-by-step instructions are provided, and the product is backed by a 1-year limited warranty.
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Part #: FPE-TL-LB7-LLY
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 or LLY truck! It includes all of the necessary fittings whether your truck is running a stock radiator or Setrab equipped radiator. Kit Contents: Transmission Lines (6) 7/8"-14 O-ring to -10AN fittings (2) 3/4"-16 O-ring to -10AN fittings (2) 1/2" NPT to -10 AN fittings (2) M22x1.5 to -10AN Setrab fittings (2) Large OD washers (1) Double hose clamp (2) Locking cable ties
Transmission lines, o-rings, zip ties and washers are included in kit.
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Fleece Performance |
| Part Number | F007 FPE-TL-LB7-LLY |
Videos
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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