Exergy 04-10 Duramax LLY/LBZ/LMM Passenger Side Leak Rail
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This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
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Injector return leaks are hard to trace and easy to blame on the injectors themselves. The Exergy 04-10 Duramax LLY/LBZ/LMM Passenger Side Leak Rail (store SKU xrgE05 10010) replaces the leak-off path on the Duramax LLY/LBZ/LMM.
- Passenger side assembly — order the side you need, as they are not interchangeable.
- Replaces the return path rather than the injectors, which is often where the actual leak is hiding.
- Supplied as an assembly so the connections are correct rather than rebuilt from mismatched parts.
Fits: 2004-2010 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD with the 6.6L Duramax LLY, LBZ or LMM. The 2004 split is mid-year: earlier-2004 trucks are LB7 and use a different leak rail.
Perfect for chasing a return leak to its actual source rather than replacing injectors on suspicion.
Shipping Height: 4.0
Shipping Length: 15.0
Shipping Width: 6.0