Mahle G31978 Fuel Injection Throttle Body Mounting Gasket

OE-Style Throttle Body Sealing

The Mahle G31978 fuel injection throttle body mounting gasket is an OEM Standard sealing solution for maintaining a secure connection at the throttle body. Built with molded rubber, it is made for precise sealing performance on select Buick and Pontiac applications, including Buick Allure, Buick LaCrosse, Buick Lucerne, and Pontiac Grand Prix.

Mahle gaskets are used by OEMs and technicians worldwide for dependable sealing performance. This Mahle G31978 gasket is a direct-fit service part for throttle body mounting applications where accurate sealing is critical.

Key Features

• Fuel injection throttle body mounting gasket for air and fuel delivery service
• Molded rubber throttle body gasket material for consistent sealing
• OEM Standard item grade for service replacement use
• Engineered for select 2004-2009 Buick and Pontiac applications
• Mahle G31978 part number for easy identification

Detailed Description

The Mahle G31978 is a throttle body mounting gasket used in fuel injection systems to seal the throttle body to the intake side of the engine. Proper sealing helps maintain stable airflow and supports accurate throttle body operation on vehicles such as the Buick Allure, Buick LaCrosse, Buick Lucerne, and Pontiac Grand Prix. This part cross-references FEL-PRO 61447 and General Motors 12576730 for the same application. If you are servicing a Buick LaCrosse throttle body gasket, Buick Lucerne throttle body seal, or Pontiac Grand Prix throttle body mounting gasket, Mahle G31978 provides an OE-style replacement built to match the application requirements.

What It Helps Address

• Air leaks at the throttle body mounting surface
• Rough idle caused by sealing loss
• Throttle response issues related to intake air leakage
• Vacuum-related drivability concerns at the throttle body joint
• Service replacement needs during throttle body removal or inspection

Installation Notes and Tips

Clean both mating surfaces before installation and inspect the throttle body flange for damage or contamination. Install the gasket in the correct orientation and tighten fasteners evenly to help maintain a uniform seal. For Buick Allure, Buick LaCrosse, Buick Lucerne, and Pontiac Grand Prix applications, verify engine-specific service procedures before reassembly.

Quality Assurance

Mahle gaskets are recognized for sealing performance used by OEMs and professional technicians. The G31978 is built to OEM Standard expectations for fit and sealing consistency in the listed applications.