Mahle GS33276 Fuel Injector O-Ring Kit - Lower, Upper or Upper and Lower

Fuel Injector Sealing for OE-Style Service

Mahle GS33276 is a fuel injector O-ring kit built for OE Standard service work on port fuel injection systems. It uses fluoroelastomer sealing material to support a tight seal at the injector, helping restore proper fuel system integrity on a wide range of Ford, Lincoln, Dodge, Jeep, Ram, Nissan, Mazda, Audi, BMW, Chrysler, and other applications.

Mahle’s gasket and sealing products are used by OEMs and technicians worldwide, and the GS33276 follows that OE-focused approach for injector sealing service.

Key Features

• OE Standard item grade for service replacement
• Fluoroelastomer O-ring and seal material
• Contains fuel injector O-rings
• Built for fuel injector sealing service on upper and lower positions where listed
• Mahle fuel injector O-ring kit, part number GS33276

Detailed Description

Use Mahle GS33276 when servicing fuel injectors that require fresh sealing components to maintain fuel rail and injector sealing performance. The fluoroelastomer construction is suited for fuel system exposure and is listed across many direct-fit applications, including Ford F-150, Ford Explorer, Ford Bronco, Lincoln Navigator, Dodge Charger, Jeep Wrangler, Ram 1500, and Nissan Rogue coverage in the fitment data. This part cross-references FEL-PRO ES 70599 for the same application.

For buyers searching by vehicle, this fuel injector O-ring kit fits applications such as 2021-2025 Ford Bronco, upper and lower; 2021-2025 Ford E-350 Super Duty, upper and lower; and 2021-2023 Lincoln Navigator, N/A. It also covers many earlier Ford, Chrysler, Dodge, Jeep, Mazda, Audi, BMW, and Volkswagen models listed in the fitment table.

Common Repair Uses

• Fuel seepage at the injector seal area
• Hard starting caused by injector sealing loss
• Fuel odor around the injector rail or intake area
• Injector service after intake or fuel rail removal
• Restoring sealing on port fuel injection systems

Installation Notes and Tips

Inspect injector bores, fuel rail surfaces, and injector tips before installation. Clean all sealing surfaces thoroughly and replace damaged injectors or rails if wear is present. Lubricate the O-rings with clean engine oil or an approved fuel-system lubricant during assembly to reduce tearing and help the seals seat correctly. Verify the exact engine and injector position against the fitment data before installation, especially on Ford F-150, Ford Mustang, and Jeep Wrangler applications.

Quality Assurance

Mahle sealing products are supplied to OE-level standards and are trusted by OEMs and technicians for fuel system service. GS33276 is built as an OE Standard replacement sealing kit for injector repair work.