Mahle GS34038 Fuel Injector O-Ring Kit

Fuel injector seal kit for Ford service applications

MAHLE GS34038 is an OEM-standard fuel injector O-ring kit built for injector sealing service on a wide range of Ford trucks and vans. It uses fluoroelastomer sealing materials to support fuel system sealing where heat and fuel exposure are common.

Key features

• OEM-standard service kit for fuel injector sealing
• Fluoroelastomer O-rings for fuel-resistant sealing performance
• Includes injector crush washers, lower O-rings, middle O-rings, top snap rings, upper cushion seals, and upper O-rings
• Compatible with Ford E-350 Super Duty, F-250 Super Duty, and Excursion injector service applications
• MAHLE GS34038 is part of a sealing product line trusted by OEMs and technicians

Detailed description

MAHLE GS34038 is a fuel injector O-ring kit for injector reseal service on Ford applications that require a complete sealing refresh. The kit uses fluoroelastomer material for the O-rings and is specified as OEM standard, making it a practical choice when restoring injector sealing integrity on vehicles such as the Ford E-350 Super Duty, F-350 Super Duty, and F-250 Super Duty. MAHLE GS34038 also cross-references FEL-PRO ES73207 for the same application.

The included sealing components cover the injector stack with crush washers, lower O-rings, middle O-rings, top snap rings, upper cushion seals, and upper O-rings. This helps address wear at multiple sealing points during injector service on Ford E-Series, Super Duty, and related chassis applications. The part number GS34038 is useful when matching the correct injector seal kit for service work across the listed Ford fitments.

Common issues this kit can address

• Fuel seepage at injector sealing points
• Hard starting caused by injector seal leakage
• Fuel odor from worn injector O-rings or crush washers
• Loss of sealing integrity after injector removal and service
• Air intrusion or pressure loss at injector interfaces

Installation notes and tips

Clean injector bores and sealing surfaces before installation. Replace all sealing components during injector service to avoid reusing worn elastomers or washers. Verify the injector and cylinder head surfaces are free of debris, and confirm the correct application by matching the part number GS34038 to the vehicle’s injector service requirements.

Quality assurance

MAHLE sealing products are used by OEMs and technicians worldwide, and this kit is built to OEM-standard specifications for service reliability.