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Oil-resistant Nitrile rubber seals ensure a leak-free seal.
The connector of the return pipe assembly is made of high quality aluminum alloy
Compatible with 2004.5-2010 GM Duramax Engine 6.6L LLY LBZ LMM
KEN AYRES
2025-08-02 11:52:41
Great quality over OEM designed plastic
Jim Bob Cooter
2025-07-06 12:51:43
Way better return line set up than the OEM plastic inserts. This product has aluminum inserts that fit better into the injector for less chance of a fuel leak or them breaking. The hose is high quality and installing new clips is a bonus. GM wants $32 for ONE clip. Definitely recommend upgrade for a LLY Duramax
Customer
2025-02-18 12:52:28
Bought these when doing injectors on my Lly. Are good quality and come with extras o rings and crimp on hose clamps. On the d/s they were slightly longer then oem but with the extra clamps was able to cut adjust for a cleaner look still would have worked being longer as well. Been a week and no leaks from return lines
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