Mahle MS12343A Fuel Injection Plenum Gasket Set
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Mahle

Mahle MS12343A Fuel Injection Plenum Gasket Set

Brand Mahle MS12343A
Item Grade Oem standard
Package Quantity 4
Plenum Gasket Material Paper
Fits Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac · 46 vehicles

OEM standard. Plenum gasket set delivers dependable sealing performance.

Paper material. Provides a reliable seal for fuel injection plenum service.

Trusted by OEMs. MAHLE sealing products are used by technicians worldwide.

Cross-references FEL-PRO MS 93160 for the same application. See all 1.

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Mahle MS12343A Fuel Injection Plenum Gasket Set

Mahle MS12343A is an OEM-standard fuel injection plenum gasket set for service work on select GM applications. Built with paper plenum gasket material, it supports reliable sealing at the intake plenum interface where vacuum integrity and clean fuel delivery matter.

Compatible With 1985-1992 Chevrolet Camaro, 1985-1992 Pontiac Firebird, and other listed V8 applications, this Mahle gasket set is a direct-fit sealing solution for maintenance and repair. It is also a practical choice when replacing a worn plenum gasket on a Chevrolet Corvette, Caprice, or Cadillac Brougham.

  • OEM Standard item grade for service replacement use
  • Paper plenum gasket material for the lower plenum sealing surface
  • Mahle sealing technology trusted by OEMs and technicians
  • Fits a range of 1985-1992 GM performance and full-size applications
  • Part number MS12343A for accurate ordering and lookup

Application Details

This fuel injection plenum gasket set is used on select Cadillac, Chevrolet, Buick, Oldsmobile, and Pontiac vehicles. Fits 1991-1992 Cadillac Brougham, N/A; Fits 1985-1992 Chevrolet Camaro, N/A; Fits 1990-1992 Chevrolet Caprice, N/A; Fits 1991-1992 Chevrolet Commercial Chassis, N/A; Fits 1991-1992 Oldsmobile Custom Cruiser, N/A; Fits 1985-1992 Pontiac Firebird, N/A; Fits 1991 Buick Roadmaster, N/A; Fits 1985-1991 Chevrolet Corvette, N/A. This part cross-references FEL-PRO (e.g., MS 93160) for the same application.

What It Is Used For

  • Replacing a leaking lower plenum gasket
  • Restoring intake sealing on GM fuel-injected engines
  • Addressing vacuum leaks that affect idle quality
  • Correcting unmetered air entry at the plenum interface
  • Supporting service repairs on Camaro, Firebird, and Corvette applications

Installation Notes and Tips

Confirm engine configuration and lower plenum application before installation. Clean both sealing surfaces thoroughly and inspect the intake components for warpage, carbon buildup, or damage before reassembly. Follow the vehicle service manual for torque sequence and tightening specifications. MS12343A is listed for lower plenum use, and one fitment note states it is not compatible with a paper engine oil pan gasket on 1991-1992 Chevrolet Commercial Chassis applications.

Quality Assurance

Mahle gaskets are engineered to meet OEM-standard service expectations and are used by OEMs and technicians worldwide for sealing applications.

This part fits 46 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
1992CadillacBrougham5.0LV8Paper; Lower
1992ChevroletCamaro5.7LV8Paper; Lower
1992ChevroletCamaro5.0LV8Paper; Lower
1992ChevroletCaprice5.0LV8Paper; Lower
1992ChevroletCommercial Chassis5.0LV8Not compatible with paper engine oil pan gasket.
1992OldsmobileCustom Cruiser5.0LV8Paper; Lower
1992PontiacFirebird5.7LV8Paper; Lower
1992PontiacFirebird5.0LV8Paper; Lower
1991BuickCommercial Chassis5.0LV8Paper; Lower
1991BuickRoadmaster5.0LV8Paper; Lower
1991CadillacBrougham5.0LV8Paper; Lower
1991ChevroletCamaro5.7LV8Paper; Lower
1991ChevroletCamaro5.0LV8Paper; Lower
1991ChevroletCaprice5.0LV8Paper; Lower
1991ChevroletCommercial Chassis5.0LV8Not compatible with paper engine oil pan gasket.
1991ChevroletCorvette5.7LV8Paper; Lower
1991OldsmobileCustom Cruiser5.0LV8Paper; Lower
1991PontiacFirebird5.7LV8Paper; Lower
1991PontiacFirebird5.0LV8Paper; Lower
1990ChevroletCamaro5.7LV8Paper; Lower
1990ChevroletCamaro5.0LV8Paper; Lower
1990ChevroletCaprice5.0LV8Paper; Lower
1990ChevroletCorvette5.7LV8Paper; Lower
1990PontiacFirebird5.7LV8Paper; Lower
1990PontiacFirebird5.0LV8Paper; Lower
1989ChevroletCamaro5.7LV8Paper; Lower
1989ChevroletCamaro5.0LV8Paper; Lower
1989ChevroletCorvette5.7LV8Paper; Lower
1989PontiacFirebird5.7LV8Paper; Lower
1989PontiacFirebird5.0LV8Paper; Lower
1988ChevroletCamaro5.7LV8Paper; Lower
1988ChevroletCamaro5.0LV8Paper; Lower
1988ChevroletCorvette5.7LV8Paper; Lower
1988PontiacFirebird5.7LV8Paper; Lower
1988PontiacFirebird5.0LV8Paper; Lower
1987ChevroletCamaro5.7LV8Paper; Lower
1987ChevroletCamaro5.0LV8Paper; Lower
1987ChevroletCorvette5.7LV8Paper; Lower
1987PontiacFirebird5.7LV8Paper; Lower
1987PontiacFirebird5.0LV8Paper; Lower
1986ChevroletCamaro5.0LV8Paper; Lower
1986ChevroletCorvette5.7LV8Paper; Lower
1986PontiacFirebird5.0LV8Paper; Lower
1985ChevroletCamaro5.0LV8Paper; Lower
1985ChevroletCorvette5.7LV8Paper; Lower
1985PontiacFirebird5.0LV8Paper; Lower
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
FEL-PRO — MS 93160