The Bostech BD6301637 Fuel Injector Return Line Kit from XDP is a direct replacement for your GM 6.6 Duramax LLY/LBZ/LMM factory return line. Replacement of the return line is recommended when installing new injectors to help avoid any leaks.
Features:
- OE-Style Replacement
- Passenger Side (Right Side)
- Meets OE Specs
Manufacturer Warranty*:
2 Year / Unlimited Mileage
2 Year / Unlimited Mileage