Standard Ignition SK68 Fuel Injector Seal Kit

Reliable Fuel Injector Seal Kit for Chevrolet and GMC Trucks

The Standard Ignition SK68 Fuel Injector Seal Kit is designed to maintain optimal fuel system performance for Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 models. This kit includes all necessary O-rings and upper intake manifold gaskets to ensure a proper seal and prevent fuel leaks.

• Includes 13 high-quality O-rings in black, silver, and copper finishes
• Designed for 4 fuel injectors per kit
• Upper intake manifold gaskets included for comprehensive sealing
• Compatible with Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500
• Hardware not included, allowing use with existing components

Detailed Fuel Injector Seal Kit Specifications

The SK68 Fuel Injector Seal Kit from Standard Ignition provides a complete set of seals engineered to fit specific heavy-duty Chevrolet and GMC truck models. The kit contains 13 O-rings with precise dimensions, including 19.812 mm inside diameter and 22.86 mm outside diameter for the primary seals, ensuring a tight fit around the fuel injectors. The kit also includes upper intake manifold gaskets to maintain proper sealing between the intake manifold and cylinder head, reducing the risk of vacuum leaks and improving engine efficiency. The seals come in a combination of black, silver, and copper finishes, selected for durability and resistance to fuel and heat exposure.

Common Applications and Issues Addressed

• Prevents fuel leaks around injectors in Chevrolet Silverado 2500 HD and 3500 models
• Eliminates vacuum leaks caused by worn intake manifold gaskets on GMC Sierra 2500 HD and 3500
• Restores proper fuel injector sealing to improve engine performance and fuel economy
• Addresses injector seal degradation due to heat and fuel exposure
• Helps reduce rough idling and misfires related to faulty injector seals

Installation Notes and Tips

• Ensure all old seals and gaskets are fully removed before installation
• Lubricate new O-rings lightly with clean engine oil to ease installation and prevent damage
• Check injector bores and intake manifold surfaces for cleanliness and damage
• Do not reuse hardware; although not included, inspect existing bolts and replace if necessary
• Follow vehicle manufacturer torque specifications when reinstalling components

Quality Assurance and Warranty Information

Standard Ignition manufactures the SK68 Fuel Injector Seal Kit to meet or exceed OEM specifications for fit and durability. While hardware and nozzle seals are not included, the kit provides all critical sealing components for fuel injectors and intake manifold gaskets. Standard Ignition products typically come with a limited warranty against defects in material and workmanship; please refer to the manufacturer’s warranty documentation for specific terms.