Eliminate common LB7 injector issues and unlock new power with performance parts tailored to the 2001–2004 Duramax platform. Shop injector replacement kits, turbo upgrades, and EFI Live tuning for your LB7. This category includes LB7 head gaskets, up-pipes, and fuel lift pumps that restore reliability and support high horsepower builds.
2001-2015 GM 6.6L DURAMAX
The GM 12637647 Updated Driver Side Exhaust Manifold for your 2001-2010 GM 6.6L Duramax features a "full bore" unlike the factory exhaust manifold that is "kinked or...
2001-2004 GM 6.6L DURAMAX LB7
The GM 97188463 LB7 Injector Cup is a direct replacement for your 2001-2004 GM 6.6L Duramax LB7. Damaged or cracked injector cups can cause leaks leading to engine...
2001-2004 GM 6.6L DURAMAX LB7
The GM 97226202 Glow Plug is a direct replacement for your 2001-2004 GM 6.6L Duramax LB7. Replacing failed glow plugs can eliminate check engine lights and hard...
2001-2015 GM 6.6L DURAMAX
The GM 97188685 Exhaust Manifold To Up-Pipe Gasket is a direct replacement for your 2001-2015 GM 6.6L Duramax. This gasket is commonly replaced when upgrading exhaust...
2001-2007 GM 6.6L DURAMAX (ALSO 2007.5-2010 WITH LEFT HAND DIPSTICK TUBE)
The GM 15794381 Transmission Dipstick is a direct replacement for the 2001-2007 GM 6.6L Duramax. This part is also commonly...
2001-2010 GM 6.6L DURAMAX
The GM 11561233 Torsion Bar Nut is a direct replacement for the factory hardware in your 2001-2010 GM 6.6L Duramax. From being adjusted over time, the factory Torsion Bar...
2001-2016 GM 6.6L DURAMAX (FRONT)
The GM 97241129 Front Thermostat is a factory replacement for your 2001-2016 GM 6.6L Duramax. This Thermostat features the same OE activation temp and is a drop-in...
2001-2016 GM 6.6L DURAMAX (REAR)
The GM 97241130 Rear Thermostat is a factory replacement for your 2001-2016 GM 6.6L Duramax. This Thermostat features the same OE activation temp and is a drop-in...
2001-2004 GM 6.6L DURAMAX LB7
The GM 97209343 Glow Plug Rail for your 2001-2004 GM 6.6L Duramax LB7 is a common failure item. On the federal emission LB7 engines, the glow plugs are connected by the...
2001-2004 GM 6.6L DURAMAX LB7
The GM 97728979 Fuel Pressure Regulator is a direct replacement for the factory regulator in your 2001-2004 GM 6.6L Duramax. This factory replacement is built to the...
2001-2015 GM 6.6L DURAMAX
The GM 11610681 Cylinder Head Bolt is an OE replacement for the factory installed head bolts in your 2001-2015 GM 6.6L Duramax.
The factory bolts are torque-to-yield and...
2001-2004 GM 6.6L DURAMAX LB7
The GM 97207227 Inner Injector Harness is a factory replacement for your 2001-2004 GM 6.6L Duramax LB7. Inner Injector Harness, sold individually. 8 required for entire...