Collection: 2001-2004 Duramax LB7

2001–2004 Duramax LB7 parts and systems support GM’s first generation 6.6L Duramax diesel platform.
These model years introduced common-rail fuel injection to GM’s heavy-duty lineup and established the foundation for later Duramax engines.

This collection groups components intended to align with the factory configuration of LB7-equipped trucks.

Platform Overview

The LB7 Duramax marked a major shift in GM diesel design, introducing electronic control and high-pressure common-rail fueling without modern emissions aftertreatment systems.

Key platform characteristics include:

• No factory EGR, DPF, or SCR systems
• Bosch common-rail fuel injection
• Fixed geometry turbocharger
• Simplified exhaust layout

These features influence component compatibility and system selection.

Product Categories in This Collection

This collection includes components commonly used on the 2001–2004 Duramax LB7 platform, including:

• Tuning devices and calibration hardware
• Exhaust systems and exhaust components
• Turbocharger and intake-related parts
• Fuel system support components
• Electrical and sensor-related hardware

Products are organized based on system application and platform compatibility.

System Compatibility Considerations

Although mechanically simpler than later Duramax platforms, the LB7 still relies on coordinated ECM control for fueling and boost regulation. Component selection should preserve factory sensor placement and control strategies.

This collection helps identify parts that align with:

• OEM electrical connectors
• Factory turbocharger and exhaust routing
• Platform-specific ECM behavior

Intended Use

This collection is intended for owners, technicians, and shops working with 2001–2004 Duramax LB7 trucks who require accurate fitment and platform-correct components.

Products are grouped by system and application.

The 2001–2004 Duramax LB7 platform is defined by its mechanical simplicity and foundational role in GM’s diesel lineup.

This collection provides access to parts and systems intended to support that architecture.