Mahle G31918 Fuel Injection Plenum Gasket
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Mahle

Mahle G31918 Fuel Injection Plenum Gasket

Brand Mahle G31918
Additional Package Contents None
Item Grade Oem standard
Package Quantity 1
Plenum Gasket Material Molded rubber
Fits Chevrolet and GMC · 8 vehicles

OEM-standard fit. Built to match the sealing requirements of intake plenum service.

Molded rubber material. Forms a consistent sealing surface for reliable intake sealing.

Mahle sealing expertise. Trusted gasket engineering for OEM and technician applications.

Cross-references FEL-PRO 72946 and General Motors 97729991 for the same application. See all 2.

$16.69Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $16.69
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Fuel Injection Plenum Gasket Overview

The Mahle G31918 fuel injection plenum gasket is an OEM-standard sealing part built for intake plenum service. It uses molded rubber construction to help maintain a consistent seal where the plenum meets the intake system.

Compatible with Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 applications from 2004-2005, this gasket is a direct-fit sealing solution for the listed vehicles. The G31918 part number is also useful when matching replacement seals by reference.

  • OEM-standard replacement gasket for intake plenum sealing
  • Molded rubber material for a formed sealing surface
  • Built for fuel injection plenum service
  • Fits listed Chevrolet Silverado and GMC Sierra heavy-duty applications

Fitment Details

Fits 2004-2005 Chevrolet Silverado 2500 HD, N/A. Fits 2004-2005 Chevrolet Silverado 3500, N/A. Fits 2004-2005 GMC Sierra 2500 HD, N/A. Fits 2004-2005 GMC Sierra 3500, N/A.

Common Replacement Uses

  • Replacing a worn or flattened plenum gasket
  • Addressing intake sealing leaks at the plenum interface
  • Restoring proper sealing after intake service
  • Correcting vacuum-related sealing issues tied to gasket wear

Installation Notes

Verify the gasket profile and application before installation. Clean the mating surfaces thoroughly and inspect the intake components for damage or contamination that could affect sealing. This part cross-references FEL-PRO 72946 and General Motors 97729991 for the same application.

Quality Assurance

Mahle gaskets are trusted by OEMs and technicians worldwide for sealing applications. The G31918 is an OEM-standard part designed to meet the requirements of the listed fitments.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2005ChevroletSilverado 2500 HD6.6LV8Molded rubber O-ring type.
2005ChevroletSilverado 35006.6LV8Molded rubber O-ring type.
2005GMCSierra 2500 HD6.6LV8Molded rubber O-ring type.
2005GMCSierra 35006.6LV8Molded rubber O-ring type.
2004ChevroletSilverado 2500 HD6.6LV8Molded rubber O-ring type.
2004ChevroletSilverado 35006.6LV8Molded rubber O-ring type.
2004GMCSierra 2500 HD6.6LV8Molded rubber O-ring type.
2004GMCSierra 35006.6LV8Molded rubber O-ring type.
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
FEL-PRO — 72946General Motors — 97729991