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Exhaust Valve Kit Cummins 4089672 | 3940734, 3802967, 4895051
Ensure optimal engine performance and efficient exhaust gas expulsion with the Cummins 4089672 Exhaust Valve Kit, designed for heavy-duty ISB and QSB engines.
Description
High-Performance Cummins 4089672 Exhaust Valve Kit
The Cummins 4089672 Exhaust Valve Kit is a premium-grade engine component designed to restore and maintain the efficiency of your commercial truck or industrial engine. By ensuring precise exhaust valve operation, this kit plays a critical role in the four-stroke combustion cycle, facilitating the smooth expulsion of spent exhaust gases. This part is also available under the numbers: 3940734, 3802967, and 4895051.
Kit Components & Their Roles
This comprehensive kit includes high-quality components engineered to withstand extreme temperatures and pressures within the combustion chamber:
- Exhaust Valve (3968183): The primary component responsible for controlling the flow of exhaust gases from the combustion chamber to the exhaust manifold.
- Valve Collet (3940123): A secure retaining mechanism that keeps the valve stem properly aligned and centered within the guide.
- Valve Stem Seal (3955393): Prevents combustion gases and oil vapors from escaping, maintaining the integrity of the combustion chamber.
Engine Compatibility & Fitment
This exhaust valve kit is designed for Cummins ISB and QSB series engines, including:
- Cummins ISB (3.9L, 4.5L, 5.9L, 6.7L)
- Cummins QSB (3.9L, 4.5L, 5.9L, 6.7L)
Product Specifications
- Weight: 0.23 lb
- Package Dimensions: 7.15 x 1.45 x 1.4 inches
- Valve Dimensions/Angle: 33 x 7 x 124.5 mm / 45°
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 4089672
- 3940734
- 3802967
- 4895051



