OE Quality
60-Day Returns

Mahle MS12343 Fuel Injection Plenum Gasket Set
Reliable Fuel Injection Plenum Gasket Set for Chevrolet and Pontiac
The Mahle MS12343 Fuel Injection Plenum Gasket Set is designed to meet OEM standards, providing a precise seal for your Chevrolet Camaro, Corvette, or Pontiac Firebird. This gasket set ensures proper air and fuel delivery by maintaining a secure connection in the fuel injection system.
- OEM standard item grade for consistent performance
- Includes 2 molded rubber plenum gaskets per package
- Durable molded rubber material resists wear and deformation
- Compatible with Chevrolet Camaro, Corvette, and Pontiac Firebird models
- Part number MS12343 for easy identification and ordering
Durable Molded Rubber Material for Effective Sealing
Constructed from molded rubber, the plenum gaskets in this set provide a reliable seal that prevents air and fuel leaks in the fuel injection plenum. The material's flexibility and resilience help maintain a tight fit under varying engine temperatures and pressures. This gasket set is engineered to match OEM specifications, ensuring proper fitment and function in your Chevrolet Camaro, Corvette, or Pontiac Firebird.
Applications and Common Issues Addressed
- Prevents vacuum leaks that can cause rough idling or poor engine performance
- Eliminates fuel injection plenum leaks that may lead to decreased fuel efficiency
- Helps avoid air-fuel mixture inconsistencies affecting acceleration
- Reduces risk of engine misfires related to gasket failure
- Maintains proper sealing to support emission control systems
Installation Notes and Tips
When installing the Mahle MS12343 Fuel Injection Plenum Gasket Set, ensure the mating surfaces are clean and free of old gasket material or debris. Proper torque specifications should be followed to avoid over-compression or damage to the molded rubber gaskets. It is recommended to replace both gaskets included in the package to maintain balanced sealing performance.
Quality Assurance and Warranty
Mahle manufactures this fuel injection plenum gasket set to meet OEM standards, ensuring reliable fit and function. The MS12343 part number is backed by Mahle's quality control processes, providing confidence in durability and performance. Warranty details are subject to Mahle's standard terms and conditions.
| Brand | Mahle |
| Part Number | MS12343 |
| Item Grade | Oem standard |
| Package Quantity | 2 |
| Plenum Gasket Material | Molded rubber |
This part fits 35 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1992 | Chevrolet | Camaro | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1992 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1992 | Pontiac | Firebird | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1992 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1991 | Chevrolet | Camaro | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1991 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1991 | Chevrolet | Corvette | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1991 | Pontiac | Firebird | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1991 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1990 | Chevrolet | Camaro | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1990 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1990 | Chevrolet | Corvette | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1990 | Pontiac | Firebird | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1990 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1989 | Chevrolet | Camaro | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1989 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1989 | Chevrolet | Corvette | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1989 | Pontiac | Firebird | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1989 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1988 | Chevrolet | Camaro | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1988 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1988 | Chevrolet | Corvette | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1988 | Pontiac | Firebird | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1988 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1987 | Chevrolet | Camaro | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1987 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1987 | Chevrolet | Corvette | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1987 | Pontiac | Firebird | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1987 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1986 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1986 | Chevrolet | Corvette | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1986 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1985 | Chevrolet | Camaro | 5.0L | V8 | N/A | Upper; Molded Rubber |
| 1985 | Chevrolet | Corvette | 5.7L | V8 | N/A | Upper; Molded Rubber |
| 1985 | Pontiac | Firebird | 5.0L | V8 | N/A | Upper; Molded Rubber |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.