GBR 739-105 Diesel Fuel Injector Pump

Reman Diesel High Pressure Fuel Pump for GM 6.6L Applications

GBR 739-105 is a remanufactured diesel high pressure fuel pump for select Chevrolet and GMC diesel applications from 2006-2010. It is built for owners replacing a worn or failing fuel injection pump on Silverado, Sierra, Express, and Savana models.

Key Features

• Remanufactured high-pressure fuel pump for diesel fuel injection systems
• Completely disassembled, ultrasonically cleaned, inspected, and rebuilt with premium components
• 100% tested on a flow bench across multiple operating parameters
• Built to meet or exceed OE specifications
• Part number 739-105 for direct reference during ordering and service lookup

Detailed Description

GBR’s Reman Diesel High Pressure Fuel Pump line focuses on restoring fuel delivery performance with a remanufacturing process that goes beyond basic cleaning. Each unit is torn down, cleaned, inspected, rebuilt with premium components, and flow-tested to verify output under multiple operating conditions. This 739-105 pump is listed for 2006-2010 Chevrolet Express 2500, Express 3500, Silverado 2500 HD, Silverado 3500 HD, and 2006-2010 GMC Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500 HD, plus 2007 Chevrolet Silverado 2500 HD Classic, Silverado 3500 Classic, and 2007 GMC Sierra 2500 HD Classic, Sierra 3500 Classic. It also fits 2006 Chevrolet Silverado 3500 and GMC Sierra 3500 applications. This part cross-references Bosch (e.g., 0445020105, 0986437332) for the same application.

Common Issues This Pump May Address

• Hard starting caused by insufficient high-pressure fuel delivery
• Loss of power under load from unstable injection pressure
• Rough idle or drivability concerns related to pump wear
• Fuel system fault codes tied to pressure regulation or pump performance
• Extended crank conditions on Chevrolet Silverado, GMC Sierra, Express, or Savana diesel models

Installation Notes and Tips

Verify the part number 739-105 against the vehicle’s service information and the referenced technical bulletin TB-0122-E before installation. Confirm the exact model year, engine configuration, and fuel system requirements for your Chevrolet Silverado, GMC Sierra, Express, or Savana application. Clean the fuel system thoroughly and inspect related components before replacing the pump to help prevent repeat contamination.

Quality Assurance

GBR remanufactures this pump using a teardown, cleaning, inspection, rebuild, and flow-test process intended to verify performance against OE specifications. Each unit is tested on a sophisticated flow bench under multiple operating parameters before release.