Product Description
Restore OE rail pressure and reliability on your LLY with the Exergy E06 10251 Right (Passenger-Side) Fuel Rail. This new stock-replacement rail is built to Exergy’s exacting standards for fit, finish, and consistent performance on 2004.5–2005 GM Duramax 6.6L LLY trucks.
Key Benefits
- Direct OE-style replacement for the right/passenger-side LLY fuel rail
- Precision manufactured to maintain stable common-rail pressure
- Engineered by Exergy Performance for durability and reliability
- Compatible with factory lines, mounts, and sensors
Fitment
- Make/Model: Chevrolet Silverado 2500HD/3500HD; GMC Sierra 2500HD/3500HD
- Engine: Duramax 6.6L LLY
- Years: 2004.5, 2005 (mid-2004 LLY introduction)
- Position: Right / Passenger Side
What’s Included
- Exergy E06 10251 New Stock Replacement Fuel Rail – Right (Passenger Side)
- Factory-style ports for sensor/relief valve (reuse your OE components unless otherwise noted)
Recommended Supporting Parts
Pair this rail with complementary Exergy parts and related hardware:
- Exergy E06 10250 Left (Driver-Side) Fuel Rail – LLY
- Exergy Leak Rail Assembly – Passenger Side (LLY/LBZ/LMM)
- Duramax Fuel Rail & Related Hardware
- Shop All Exergy Performance (injectors, pumps, components)
Install Notes
- Professional installation recommended. Follow factory torque specs and tightening sequence for high-pressure lines.
- Inspect/replace sealing washers and line ends as needed to prevent leaks.
- After installation, prime and verify rail pressure; check for leaks at idle and under load.
Frequently Asked Questions
Q: Does this come with a sensor or pressure relief valve?
A: This listing is for the right-side fuel rail only. Reuse your OE sensor/PRV or add replacements as needed.
Q: How do I confirm I need the right/passenger-side rail?
A: On LLY trucks, right/passenger side is the starboard side when seated in the truck. If you need the left/driver-side rail, see the part linked above.
Q: Will this fit LBZ/LMM?
A: No—this part is specific to 2004.5–2005 LLY. See our Duramax fuel rail category for other generations.
Q: Do I need tuning after replacing a stock rail?
A: Not for a stock replacement. Tuning is only required when changing injectors, pumps, or other fueling components significantly.
About Exergy Performance
Exergy is known for precision-engineered common-rail components and rigorous flow testing. Explore our full Exergy lineup here: Exergy Performance at CPP Diesel.
