LB7 Duramax 2001-2004

The 2001–2004 LB7 Duramax 6.6L diesel engine was the first in the legendary Duramax lineup, offering impressive power and reliability right out of the gate. Built for heavy-duty performance in Chevrolet Silverado and GMC Sierra HD trucks, the LB7 is a favorite among diesel enthusiasts and work truck owners alike.

However, as these engines age, certain components—especially within the fuel system—are known to wear out or fail. That’s why we offer a complete selection of OEM and upgraded replacement parts specifically for the LB7 platform. From injectors and injection pumps to sensors, regulators, and relief valves, we have everything you need to keep your LB7 Duramax running like new.

Whether you're performing routine maintenance or solving a tough drivability issue, trust our parts to deliver reliability, performance, and long-lasting durability for your 2001–2004 Duramax-powered truck.