LB7 Duramax Parts
Parts for the LB7 Duramax (2001 to 2004).
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Exergy 6.6L 2000 Bar (29000 PSI) Pressure Relief Valve (M16x1.5) | 2001 to 2004 LB7 Duramax
ExergyOriginal price $280.00 - Original price $280.00Original price$280.00$280.00 - $280.00Current price $280.00| /An Exergy 2000 bar pressure relief valve for the fuel rail on the LB7 Duramax. A replacement for the relief valve on the fuel rail, rated at 2,000 ...
View full detailsOriginal price $280.00 - Original price $280.00Original price$280.00$280.00 - $280.00Current price $280.00| / -
Exergy 6.6L 2400 Bar (34800 PSI) Pressure Relief Valve (M16x1.5) *RACE* | 2001 to 2004 LB7 Duramax
ExergyOriginal price $320.00 - Original price $320.00Original price$320.00$320.00 - $320.00Current price $320.00| /An Exergy 2400 bar pressure relief valve for the fuel rail on the LB7 Duramax. A replacement for the relief valve on the fuel rail, rated at 2,400 ...
View full detailsOriginal price $320.00 - Original price $320.00Original price$320.00$320.00 - $320.00Current price $320.00| / -
Exergy 6.6L 1800 Bar (26000 PSI) Pressure Relief Valve (M16x1.5) | 2001 to 2004 LB7 Duramax
ExergyOriginal price $240.00 - Original price $240.00Original price$240.00$240.00 - $240.00Current price $240.00| /An Exergy 1800 bar pressure relief valve for the fuel rail on the LB7 Duramax. A replacement for the relief valve on the fuel rail, rated at 1,800 ...
View full detailsOriginal price $240.00 - Original price $240.00Original price$240.00$240.00 - $240.00Current price $240.00| / -
Exergy 6.6L Seal Kit (O Ring & Copper Gasket), Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $64.00 - Original price $64.00Original price$64.00$64.00 - $64.00Current price $64.00| /An Exergy injector seal kit for the LB7 Duramax. New O rings and copper gaskets for an injector job. Exergy recommends new seals any time the injec...
View full detailsOriginal price $64.00 - Original price $64.00Original price$64.00$64.00 - $64.00Current price $64.00| / -
Exergy 6.6L Injector Line Set (Per Side) | 2001 to 2004 LB7 Duramax
ExergyOriginal price $396.00 - Original price $396.00Original price$396.00$396.00 - $396.00Current price $396.00| /Exergy 6.6L LB7 Duramax Injector Line Set (Per Side). An Exergy fuel system part. Fits: 2001 to 2004 Chevy Silverado and GMC Sierra 2500HD and 35...
View full detailsOriginal price $396.00 - Original price $396.00Original price$396.00$396.00 - $396.00Current price $396.00| / -
Exergy 14mm Stroker CP3 Pump, Race Series | 2001 to 2004 LB7 Duramax
ExergyOriginal price $3,200.00 - Original price $3,200.00Original price$3,200.00$3,200.00 - $3,200.00Current price $3,200.00| /The Exergy Race Series 14mm Stroker CP3 is one of the biggest single pumps you can put on an LB7 Duramax. Exergy says it easily supports 1,200 hors...
View full detailsOriginal price $3,200.00 - Original price $3,200.00Original price$3,200.00$3,200.00 - $3,200.00Current price $3,200.00| / -
Exergy Reman 500% Over Injectors with Internal Modification, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $7,448.00 - Original price $7,448.00Original price$7,448.00$7,448.00 - $7,448.00Current price $7,448.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 500% over stock. Exergy builds this size for people competing at the ...
View full detailsOriginal price $7,448.00 - Original price $7,448.00Original price$7,448.00$7,448.00 - $7,448.00Current price $7,448.00| / -
Exergy Reman 250% Over Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $6,592.00 - Original price $6,592.00Original price$6,592.00$6,592.00 - $6,592.00Current price $6,592.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 250% over stock. It is for a truck that already makes more power and ...
View full detailsOriginal price $6,592.00 - Original price $6,592.00Original price$6,592.00$6,592.00 - $6,592.00Current price $6,592.00| / -
Exergy Reman 300% Over Injectors with Internal Modification, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $7,016.00 - Original price $7,016.00Original price$7,016.00$7,016.00 - $7,016.00Current price $7,016.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 300% over stock. Exergy builds this size for people competing at the ...
View full detailsOriginal price $7,016.00 - Original price $7,016.00Original price$7,016.00$7,016.00 - $7,016.00Current price $7,016.00| / -
Exergy Reman 400% Over Injectors with Internal Modification, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $7,192.00 - Original price $7,192.00Original price$7,192.00$7,192.00 - $7,192.00Current price $7,192.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 400% over stock. Exergy builds this size for people competing at the ...
View full detailsOriginal price $7,192.00 - Original price $7,192.00Original price$7,192.00$7,192.00 - $7,192.00Current price $7,192.00| / -
Exergy Reman 200% Over Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $6,160.00 - Original price $6,160.00Original price$6,160.00$6,160.00 - $6,160.00Current price $6,160.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 200% over stock. It is for a truck that already makes more power and ...
View full detailsOriginal price $6,160.00 - Original price $6,160.00Original price$6,160.00$6,160.00 - $6,160.00Current price $6,160.00| / -
Exergy Reman 60% Over SAC Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $4,192.00 - Original price $4,192.00Original price$4,192.00$4,192.00 - $4,192.00Current price $4,192.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 60% over stock. It is for the owner who wants more power without givi...
View full detailsOriginal price $4,192.00 - Original price $4,192.00Original price$4,192.00$4,192.00 - $4,192.00Current price $4,192.00| / -
Exergy Reman 100% Over SAC Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $4,752.00 - Original price $4,752.00Original price$4,752.00$4,752.00 - $4,752.00Current price $4,752.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 100% over stock. It is for the owner who wants more power without giv...
View full detailsOriginal price $4,752.00 - Original price $4,752.00Original price$4,752.00$4,752.00 - $4,752.00Current price $4,752.00| / -
Exergy Reman 45% Over SAC Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $3,896.00 - Original price $3,896.00Original price$3,896.00$3,896.00 - $3,896.00Current price $3,896.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 45% over stock. It is for the owner who wants more power without givi...
View full detailsOriginal price $3,896.00 - Original price $3,896.00Original price$3,896.00$3,896.00 - $3,896.00Current price $3,896.00| / -
Exergy Reman 150% Over Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $5,736.00 - Original price $5,736.00Original price$5,736.00$5,736.00 - $5,736.00Current price $5,736.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 150% over stock. It is for a truck that already makes more power and ...
View full detailsOriginal price $5,736.00 - Original price $5,736.00Original price$5,736.00$5,736.00 - $5,736.00Current price $5,736.00| / -
DDP Duramax 01-04 LB7 Brand New Injector Set - 75 (45% Over)
DDPOriginal price $0.00 - Original price $0.00Original price $0.00$4,099.25$4,099.25 - $4,099.25Current price $4,099.25| /DDP Model DDPNLB7-75Duramax 01-04 LB7 Injector Set: Brand New injectors flowing at 45 percent over, capable of 725 RWHP with proper supporting modi...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$4,099.25$4,099.25 - $4,099.25Current price $4,099.25| / -
Exergy Reman 60% Over Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $3,872.00 - Original price $3,872.00Original price$3,872.00$3,872.00 - $3,872.00Current price $3,872.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 60% over stock. It is for the owner who wants more power without givi...
View full detailsOriginal price $3,872.00 - Original price $3,872.00Original price$3,872.00$3,872.00 - $3,872.00Current price $3,872.00| / -
Exergy Reman 45% Over Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $3,664.00 - Original price $3,664.00Original price$3,664.00$3,664.00 - $3,664.00Current price $3,664.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 45% over stock. It is for the owner who wants more power without givi...
View full detailsOriginal price $3,664.00 - Original price $3,664.00Original price$3,664.00$3,664.00 - $3,664.00Current price $3,664.00| / -
Exergy Reman 30% Over Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $3,560.00 - Original price $3,560.00Original price$3,560.00$3,560.00 - $3,560.00Current price $3,560.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 30% over stock. Exergy calls this size a good upgrade for a close to ...
View full detailsOriginal price $3,560.00 - Original price $3,560.00Original price$3,560.00$3,560.00 - $3,560.00Current price $3,560.00| / -
Exergy Reman 100% Over Injectors, Set of 8 | 2001 to 2004 LB7 Duramax
ExergyOriginal price $4,184.00 - Original price $4,184.00Original price$4,184.00$4,184.00 - $4,184.00Current price $4,184.00| /A set of 8 Bosch remanufactured Exergy injectors for the LB7 Duramax, flowing 100% over stock. It is for the owner who wants more power without giv...
View full detailsOriginal price $4,184.00 - Original price $4,184.00Original price$4,184.00$4,184.00 - $4,184.00Current price $4,184.00| / -
DDP Duramax 01-04 LB7 Brand New Injector Set - 50 (25% Over)
DDPOriginal price $0.00 - Original price $0.00Original price $0.00$3,909.25$3,909.25 - $3,909.25Current price $3,909.25| /DDP Model DDPNLB7-50Duramax 01-04 LB7 Injector Set: Brand New injector set at 25 percent over, approximately 50 RWHP over stock. Injector set is ca...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$3,909.25$3,909.25 - $3,909.25Current price $3,909.25| / -
DDP Duramax 01-04 LB7 Brand New Injector Set - SAC Nozzle 100% Over
DDPOriginal price $0.00 - Original price $0.00Original price $0.00$4,479.25$4,479.25 - $4,479.25Current price $4,479.25| /DDP Model DDPNLB7-200Duramax 01-04 LB7 Injector Set: Brand New injector set. SAC Nozzles flowing at 100 percent over with injector body modificatio...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$4,479.25$4,479.25 - $4,479.25Current price $4,479.25| / -
DDP Duramax 01-04 LB7 Brand New Injector Set - SAC Nozzle 150% Over
DDPOriginal price $0.00 - Original price $0.00Original price $0.00$4,669.25$4,669.25 - $4,669.25Current price $4,669.25| /DDP Model DDPNLB7-300Duramax 01-04 LB7 Injector Set: Brand New injector set. SAC Nozzles at 150 percent over with injector body modifications for a...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$4,669.25$4,669.25 - $4,669.25Current price $4,669.25| / -
DDP Duramax 01-04 LB7 Brand New Injector Set - 100 (60% Over)
DDPOriginal price $0.00 - Original price $0.00Original price $0.00$4,289.25$4,289.25 - $4,289.25Current price $4,289.25| /DDP Model DDPNLB7-100Duramax 01-04 LB7 Injector Set: Brand New injector set flowing at 60 percent over, capable of 750-800 RWHP. Modified or Dual C...
View full detailsOriginal price $0.00 - Original price $0.00Original price $0.00$4,289.25$4,289.25 - $4,289.25Current price $4,289.25| /
The LB7 is the original 6.6L Duramax, built by GM and Isuzu for 2001 to 2004 Chevy Silverado HD and GMC Sierra HD trucks. It has a cast iron block, aluminum heads, a Bosch CP3 pump and no DPF or EGR, which makes it a favorite for high mileage reliability and tuning.
Shop LB7 Duramax Parts by Category
- Engine Parts
- Fuel System
- Fuel Injectors
- Intakes and Cooling
- Turbos and Exhaust
- Tuning
- Transmissions
- Suspension and Driveline
- Fluids
- Performance Packages
Not sure what fits? Send us your VIN or call 865.640.2097 and we will match the right part.
LB7 Duramax FAQ
What is the LB7 known for?
A strong bottom end and no emissions equipment, which makes it popular for tuning and long term reliability.
What are common LB7 problems?
Injector failure is the most common issue, often from fuel contamination. Keeping fuel filtration in good shape helps prevent it.