
Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Turbocharger Gasket Cummins 3688622
High-performance turbocharger gasket for Cummins QSX15 engines, engineered to prevent exhaust leaks and maintain optimal boost pressure.
Description
Product Overview
The 3688622 Turbocharger Gasket is a critical sealing component designed specifically for Cummins heavy-duty diesel engines. It creates a high-pressure, heat-resistant seal between the turbocharger and the engine’s exhaust manifold or block, ensuring that exhaust gases are directed efficiently through the turbine without leakage.
Key Features and Benefits
- Leak Prevention: Eliminates exhaust gas leaks that can lead to reduced engine efficiency, increased emissions, and power loss.
- Pressure Integrity: Maintains the necessary pressure differentials required for optimal turbocharger performance and boost response.
- High-Temperature Resistance: Manufactured from premium materials capable of withstanding the extreme thermal cycles common in heavy-duty trucking environments.
- Precision Fit: Engineered to exact Cummins specifications for a reliable, long-lasting seal in demanding applications.
Engine Compatibility
This gasket is primarily utilized in Cummins QSX15 series engines, including the following configurations:
- QSX15 CM2250
- QSX15 CM2350
- QSX15 CM2350 X105
Technical Specifications
- Weight: 0.095 lb
- Dimensions: 7.5 x 6.55 x 0.4 inches
- Application: Turbocharger mounting and sealing


