Standard Ignition SK121 Fuel Injector Seal Kit - Upper

Fuel Injector Seal Kit for OE-Style Sealing

Standard Ignition SK121 is a fuel injector seal kit built for upper injector sealing on select Chevrolet Cruze and Volkswagen Jetta applications. It uses rubber MFI seals to help maintain a tight seal at the injector interface during high-heat engine operation.

For drivers searching for a fuel injector seal kit for 2014 Chevrolet Cruze upper injector service or 2009-2014 Volkswagen Jetta upper injector seal replacement, SK121 provides a direct-fit sealing solution from Standard Ignition.

Key Features

• Fuel injector seal kit for upper injector sealing
• Rubber MFI seal type
• Designed for heat-exposed engine environments
• Quality-tested for durability in demanding operation
• Standard Ignition SK121 for service and replacement work

Detailed Description

Standard Ignition SK121 is engineered to seal the injector-to-engine interface and help prevent fluid leakage where the injector meets the mounting surface. The rubber construction is selected for sealing performance in elevated temperatures, while the MFI seal design supports proper fitment on the listed applications. This part cross-references 1G1462 and 2-12377 for the same application. It is a practical choice for technicians servicing upper injector seals on 2014 Chevrolet Cruze and 2009-2014 Volkswagen Jetta models.

What It Helps Address

• Fuel seepage around the injector seal area
• Hard starting caused by poor injector sealing
• Fuel odor from a leaking upper injector seal
• Rough idle related to air or fuel leakage at the injector
• Heat-related seal deterioration in the injector mounting area

Installation Notes and Tips

Confirm the injector position before installation; this part is listed for upper applications only. Inspect the injector bore and mating surfaces for debris, carbon buildup, or damage before fitting the new seal. Use clean assembly practices and follow the vehicle service procedure for injector removal and reinstallation to avoid cutting or twisting the seal.

Quality Assurance

Standard Ignition states that the seals are quality tested and built to maintain sealing performance during extreme vehicle operation. The material selection and seal design are intended to support consistent injector sealing under high-temperature conditions.