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Engine Piston Ring Set Cummins 4089182 | 3949580, 4089419, 3802234
Restore your engine’s peak compression and performance with this high-quality 1.00mm oversize piston ring set. Engineered for excellent wear resistance and thermal conductivity, it ensures a reliable seal and long-lasting durability.
Description
High-Performance Engine Piston Ring Set for Cummins Engines
The Cummins 4089182 is a premium-grade, 1.00mm (.040″) oversize engine piston ring set designed to restore peak cylinder compression and overall engine efficiency. Engineered specifically for heavy-duty diesel applications, this piston ring set provides an exceptional seal against combustion gases, dramatically reducing blow-by and oil consumption. This part is also available under the numbers: 3949580, 4089419, 3802234.
Key Features and Benefits
- Optimal Cylinder Sealing: Restores peak cylinder functionality and compression, ensuring maximum power output.
- Superior Wear Protection: Protects cylinders and other critical engine components against premature wear and tear.
- Excellent Heat Dissipation: Efficiently directs heat away from the hot piston crown into the cooled cylinder wall and engine block.
- Complete Kit: Offered as a complete single-cylinder kit to prevent incompatibility issues and simplify your engine rebuild or maintenance.
Applications and Compatibility
This 1.00mm oversize piston ring set is compatible with a wide range of Cummins diesel engines, including the popular ISB, QSB, 4BT (3.9L / 4.5L), and 6BT (5.9L) series. It is ideal for engine overhauls, repairs, and routine maintenance where cylinders have been bored to a +1.00mm (+0.040″) oversize specification.
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 4089182
- 3949580
- 4089419
- 3802234
- BG5X6149CA
- 505135
- 505135HP
- M4089182
- FP4089182
