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Engine Exhaust Valve Kit Cummins 5259419 | 4089762, 4981795, 3969637
Ensure optimal engine compression and exhaust flow with this high-quality engine exhaust valve kit for Cummins QSB, ISB, ISC, and ISL engines.
Description
High-Performance Engine Exhaust Valve Kit for Cummins Engines
The Cummins 5259419 engine exhaust valve kit is designed to restore and maintain optimal combustion chamber sealing and exhaust flow in heavy-duty diesel engines. Manufactured to precise specifications, this kit ensures reliable operation under extreme thermal and mechanical stress. This part is also available under the numbers: 4089762, 4981795, 3969637.
Technical Specifications & Dimensions
To ensure a perfect fit and reliable performance, this exhaust valve kit features the following dimensions:
- Valve Head Diameter: 38.2 mm
- Stem Diameter: 8 mm
- Length: 137.8 mm
- Face Angle: 45°
Engine Compatibility
This exhaust valve kit is compatible with a wide range of Cummins mid-range and heavy-duty diesel engines, including:
- Cummins ISB / QSB (including QSB 4.5, QSB 6.7, ISB 5.9, ISB 6.7)
- Cummins ISC 8.3 / QSC 8.3
- Cummins ISL 8.9 / QSL 8.9
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 5259419
- 4089762
- 13163EA
- 3900250
- 3969637
- 4981795

