Mahle G31121 Fuel Injection Throttle Body Mounting Gasket

Fuel Injection Throttle Body Mounting Gasket for Ford Applications

The Mahle G31121 fuel injection throttle body mounting gasket is an OEM-standard sealing solution for select Ford, Mercury, and Lincoln applications. Built with composite throttle body gasket material, it helps maintain a secure seal at the EGR valve spacer plate to intake manifold interface.

Mahle gaskets are used by OEMs and technicians worldwide for dependable sealing performance. This G31121 gasket is a direct-fit option for drivers and repair shops servicing classic Ford fuel and air delivery systems.

Key Features

• OEM Standard item grade for factory-style fit and sealing
• Composite throttle body gasket material
• Designed for the EGR valve spacer plate to intake manifold connection
• Brand: Mahle
• Part number: G31121
• Cross-reference: FEL-PRO 70262

Detailed Description

The Mahle G31121 is a fuel injection throttle body mounting gasket made for select 1987-1995 Ford Mustang, 1991-1993 Ford Thunderbird, 1991-1993 Mercury Cougar, and 1988-1992 Lincoln Mark VII applications. It is specified for 2.50-inch bore use at the EGR valve spacer plate to intake manifold interface, where a stable seal is critical for proper air and fuel delivery system performance. If you are replacing a worn throttle body gasket on a Ford Mustang, Thunderbird, Cougar, or Mark VII, this Mahle gasket provides an OEM-style sealing surface in a composite construction.

Mahle G31121 is a practical replacement for service work where the original gasket has compressed, deteriorated, or no longer seals evenly. The part number G31121 is also a useful reference when matching the correct gasket for these Ford, Mercury, and Lincoln engine applications.

What This Gasket Helps Address

• Vacuum leaks at the throttle body or spacer plate interface
• Air leakage between the EGR valve spacer plate and intake manifold
• Rough idle caused by a compromised seal
• Driveability issues related to unmetered air entering the intake tract
• Service replacement for a damaged or flattened original gasket

Installation Notes and Tips

Confirm bore size and application details before installation. Clean both mating surfaces thoroughly and inspect for warpage, carbon buildup, or old gasket material before fitting the new seal. Use the correct torque sequence and tighten fasteners evenly to help the gasket seat properly. For fitment verification, match the vehicle and engine configuration to the listed applications for Ford Mustang, Thunderbird, Cougar, and Lincoln Mark VII.

Quality Assurance

Mahle gaskets are engineered to meet OEM-standard expectations for sealing performance and are trusted in professional repair environments. This part is built to support reliable fitment on the listed applications and is backed by Mahle’s reputation in sealing systems.