Standard Ignition SK68 Fuel Injector Seal Kit

Fuel Injector Seal Kit for GM HD Trucks

Standard Ignition SK68 is a fuel injector seal kit for select Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 applications from 2001-2004. It is built for rail service work with valve cover gasket coverage and is engineered to meet or exceed OE specifications.

Key Features

• Fuel injector seal kit for direct service on injector sealing components
• Compatible with 2001-2004 Chevrolet Silverado 2500 HD and Silverado 3500
• Compatible with 2001-2004 GMC Sierra 2500 HD and Sierra 3500
• Upper intake manifold gaskets included
• Black, silver, and copper sealing components
• Designed for 4-injector rail service applications
• Standard Ignition SK68 cross-references Dorman OE Solutions 615-203

Detailed Description

The Standard Ignition SK68 fuel injector seal kit is intended for service on GM heavy-duty gas and diesel fuel systems where injector sealing integrity is critical. This kit includes the sealing components needed for rail service applications and uses materials selected to support OE-style fit and function. Standard Ignition tests and inspects products in an ISO 9000-compliant environment and builds them to address common failure points found in original equipment designs.

For fitment-focused searches, this part is a direct match for 2001-2004 Chevrolet Silverado 2500 HD fuel injector seal kit applications, 2001-2004 Chevrolet Silverado 3500 injector seal service, 2001-2004 GMC Sierra 2500 HD injector seal replacement, and 2001-2004 GMC Sierra 3500 rail service repairs. The SK68 part number is also useful when cross-checking service kit listings for these GM truck platforms.

What It Helps Repair

• Fuel leaks at injector sealing points
• Hard starting caused by poor injector seal integrity
• Rough idle related to air or fuel intrusion at the injector rail
• Loss of fuel pressure from worn injector O-rings and seals
• Service issues during injector removal and reinstallation

Installation Notes and Tips

Clean the injector bores and mating surfaces before installation. Inspect the fuel rail, injector bodies, and intake sealing surfaces for wear or damage before reassembly. Replace all disturbed seals during service and follow the vehicle service procedure for torque and reassembly sequence. Confirm application details against the vehicle before ordering, especially on 2001-2004 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 models.

Quality Assurance

Standard Ignition manufactures this kit in an ISO 9000-compliant environment and validates it against OE-level specifications. The SK68 is designed for consistent sealing performance in service applications where original equipment components have failed.