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Piston Ring Set Cummins 4089460 | 3904531, 3932520, 3937392, 3902286
Restore optimal engine compression and reduce oil consumption with this high-quality piston ring set for Cummins B4.5, ISB, and QSB 4.5 engines.
Description
High-Performance Piston Ring Set for Cummins Engines
The Cummins 4089460 piston ring set is designed to restore optimal cylinder sealing, maintain proper compression, and control oil consumption in heavy-duty diesel engines. Engineered to withstand extreme combustion temperatures and high pressures, this standard (STD) size piston ring set ensures long-lasting durability and reliable engine performance. This part is also available under the numbers: 3904531, 3932520, 3937392, and 3902286.
Engine Compatibility and Fitment
This piston ring set is specifically designed for standard 102mm bore cylinders. It is compatible with the following Cummins engine models:
- Cummins B4.5
- Cummins ISB 4.5
- Cummins QSB 4.5
Technical Specifications
- Piston Diameter (Standard): 102 mm
- Ring Configuration: 3 Rings (3T x 2.35 x 4)
- Application: Standard (STD) size replacement
Replacing worn piston rings is critical to preventing blow-by, reducing exhaust smoke, and avoiding costly internal engine damage. This premium replacement set provides a precise fit and excellent wear resistance, keeping your heavy-duty equipment running efficiently.
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 4089460
- 3904531
- 3932520
- 3937392
- 3902286
- 3923889
- 3903384
- 3957804
