Duramax 6.6L Transmission Cooler Line For 06-10 GM LLY LBZ LMM Allison Black Beefed-Up Replacement With OEM-Grade Fittings Durable Tubing Ideal For Towing Hauling And Daily Driving
✔️ Includes 6 heavy-duty lines with OEM-grade fittings and black tubing
This heavy-duty transmission cooler line kit replaces leaking lines on 2006-2010 GM 6.6L diesel pickups with Allison transmissions. It’s built to handle towing, hauling, and daily driving, with compatibility for stock or Setrab radiators.
✅ 6 transmission lines included
✅ 7/8-14 O-ring to -10AN fittings (2)
✅ M22x1.5 to -10AN Setrab fittings (2)
✅ Large OD washers (1)
✅ Double hose clamps (2)
✅ Locking cable ties
✅ Color: Black
💡 What is a transmission cooler line kit used for in GM 6.6L trucks?
It restores cooling performance and replaces worn lines for reliable operation.
- Replaces leaking lines with high-flow, durable tubing to restore cooling
- Uses OEM-grade fittings (-10AN, M22x1.5) for robust connections
- Black tubing resists heat and abrasion, suitable for towing and daily driving