HomeAir and Fuel Delivery > Gaskets and Sealing SystemsMahle G31978 Fuel Injection Throttle Body Mounting Gasket
Part #: G31978

Mahle G31978 Fuel Injection Throttle Body Mounting Gasket

⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick and Pontiac, Allure, LaCrosse, Lucerne, and Grand Prix
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Reliable Fuel Injection Throttle Body Mounting Gasket

The Mahle G31978 fuel injection throttle body mounting gasket is designed to provide a secure and precise seal for your vehicle's throttle body. Engineered with molded rubber material, this gasket ensures durability and optimal performance for Buick and Pontiac models.

  • OEM standard item grade for consistent quality
  • Constructed from molded rubber for effective sealing
  • Package includes one gasket (quantity: 1)
  • Compatible with Buick Allure, LaCrosse, and Lucerne
  • Compatible with Pontiac Grand Prix

Durable Molded Rubber Construction

This throttle body gasket is made from molded rubber, a material chosen for its flexibility and resistance to heat and fuel exposure. The gasket maintains a tight seal between the throttle body and intake manifold, preventing air and fuel leaks that can affect engine performance. The Mahle G31978 meets OEM standards, ensuring it matches the original equipment specifications for fit and function.

Compatible Buick and Pontiac Models

The Mahle G31978 is specifically designed for use with select Buick and Pontiac vehicles. It is compatible with Buick Allure, LaCrosse, and Lucerne models, as well as the Pontiac Grand Prix. This precise fitment helps maintain proper throttle body operation and engine efficiency.

Common Applications and Problem Solving

  • Prevents vacuum leaks caused by worn or damaged throttle body gaskets
  • Eliminates rough idling and engine hesitation related to air leaks
  • Helps maintain proper fuel injection system performance
  • Reduces potential for check engine light triggers due to throttle body seal issues
  • Supports consistent throttle response and engine power delivery

Installation Notes and Tips

Before installing the Mahle G31978 gasket, ensure the throttle body and mounting surfaces are clean and free of old gasket material or debris. Proper surface preparation is critical for achieving a secure seal. Use appropriate torque specifications when tightening bolts to avoid gasket damage. This gasket is designed for straightforward replacement during throttle body service or repair.

Quality Assurance and Warranty

Mahle manufactures this throttle body mounting gasket to meet OEM standards, providing reliable performance and fitment. While specific warranty details are not provided, Mahle products typically adhere to strict quality control processes to ensure durability and consistency in automotive applications.

BrandMahle
Part NumberG31978
Additional Package ContentsNone
Item GradeOEM Standard
Throttle Body Gasket MaterialMolded Rubber

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009BuickAllure3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2009BuickLaCrosse3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008BuickAllure3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008BuickLaCrosse3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008BuickLucerne3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2008PontiacGrand Prix3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007BuickAllure3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007BuickLaCrosse3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007BuickLucerne3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2007PontiacGrand Prix3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006BuickAllure3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006BuickLaCrosse3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006BuickLucerne3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2006PontiacGrand Prix3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005BuickAllure3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005BuickLaCrosse3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2005PontiacGrand Prix3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.
2004PontiacGrand Prix3.8LV6N/AFor optimal performance during installation of Engine Coolant Thermostat Seal, use the included gasket from the set.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

61447

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.