Standard Ignition SK18 Fuel Injection Fuel Rail O-Ring Kit

Fuel Rail O-Ring Kit for GM Applications

Standard Ignition SK18 is a fuel injection fuel rail O-ring kit built for inlet and outlet sealing service on a wide range of GM vehicles. It is designed for repair work where fuel rail sealing has worn, hardened, or begun to leak, including Chevrolet, GMC, Buick, Cadillac, Oldsmobile, and Pontiac applications.

Key Features

• Fuel injection fuel rail O-ring kit for inlet and outlet service
• Rubber construction with black and brown seals
• OE-spec design focus for proper sealing performance
• Tested and inspected in an ISO 9000-compliant environment
• Standard Ignition SK18 for service on many GM fuel systems

Detailed Description

Standard Ignition SK18 is a fuel rail O-ring replacement kit for vehicles that use inlet and outlet sealing at the fuel rail connection. The rubber seals are engineered to meet or exceed OE specifications, helping restore a secure seal where fuel system leaks, seepage, or pressure loss have developed. This part number is commonly searched for GM fuel injection repair on models such as Chevrolet Astro, Chevrolet Blazer, GMC Safari, Buick Regal, and Pontiac Grand Prix.

This part cross-references Gates 27478 for the same application. Standard Ignition SK18 is also referenced by 1G1017 and 2-18416 in related catalog listings.

What It Is Used For

• Fuel odor or wetness around the fuel rail connection
• Seepage at inlet and outlet sealing points
• Hard, cracked, or flattened fuel rail O-rings
• Fuel pressure loss caused by worn seals
• Service work on GM fuel injection systems during rail removal

Installation Notes and Tips

Clean the sealing surfaces before installation and inspect the fuel rail and injector connection points for damage or corrosion. Lightly lubricate the new O-rings with clean engine oil or approved fuel-system lubricant before assembly to reduce tearing during installation. Verify the rail seats evenly and check for leaks after the system is re-pressurized. Compatible With 1985-1999 Chevrolet Astro, 1987-1999 Chevrolet Blazer, 1988-1999 GMC C1500, and other listed GM applications.

Quality Assurance

Standard Ignition tests and inspects these components in an ISO 9000-compliant environment and builds them to meet or exceed OE specifications. The SK18 is intended for repair service where original sealing components have failed and a direct-fit replacement is needed.