GBR 522-046 Fuel Injector Sleeve

Fuel Injector Sleeve for Diesel Sealing

GBR Fuel Injector Sleeve 522-046 is a diesel injector sleeve that seals and helps cool the interface between the fuel injector and the cylinder head. For Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, and Sierra 3500 diesel applications, proper sleeve sealing is critical to keeping combustion gases and coolant out of the fuel system.

This part cross-references OE number 97188463 for the same application.

Key Features

• Fuel Injector Sleeve from GBR Fuel Injector Sleeve line
• Provides sealing and cooling between the diesel injector and cylinder head
• Supports injector service and replacement on GM diesel applications
• Part number 522-046 for ordering and fitment verification
• Compatible with 2001-2005 Chevrolet Silverado 2500 HD and 2001-2004 Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500

Detailed Description

GBR 522-046 is a diesel fuel injector sleeve used to maintain the seal at the cylinder head and help manage heat transfer around the injector bore. When the sleeve does not seal correctly, combustion gas or coolant can enter the fuel system, which can lead to misfire concerns and injector damage. Replacing the sleeve during injector service helps restore the sealing surface and supports longer injector life. This part number 522-046 is a direct-fit service component for GM diesel truck applications, including Chevrolet Silverado 2500 HD and GMC Sierra 3500 models in the listed years.

What It Helps Address

• Fuel system contamination from coolant intrusion
• Combustion gas leakage at the injector bore
• Diesel engine misfire caused by poor injector sealing
• Injector wear related to heat and sealing loss
• Service issues during injector replacement on Silverado and Sierra diesel trucks

Installation Notes and Tips

Install during injector service or replacement to help ensure proper sealing at the cylinder head. Clean the injector bore and surrounding surfaces before installation, and verify the sleeve seats correctly before reassembly. Confirm application by year, make, and model before ordering 522-046.

Quality Assurance

GBR Fuel Injector Sleeve 522-046 is built for diesel service applications where sealing and cooling at the injector interface are required. It is listed for 2001-2005 Chevrolet Silverado 2500 HD, 2001-2004 Chevrolet Silverado 3500, 2001-2004 GMC Sierra 2500 HD, and 2001-2004 GMC Sierra 3500.