Piston Ring Set Cummins 4089810 | 3801056

High-Performance Piston Ring Set for Cummins NT855 Engines

Restore your heavy-duty engine’s efficiency and power with this premium piston ring set, specifically engineered for Cummins NT855 series diesel engines. Designed to meet rigorous industry standards, the Cummins 4089810 piston ring set ensures a perfect seal within the cylinder, preventing combustion gases from escaping and maintaining optimal oil control. This part is also available under the number: 3801056.

Constructed from high-grade materials, these piston rings offer exceptional wear resistance and thermal stability under extreme operating conditions. Whether you are performing a routine overhaul or a complete engine rebuild, this set provides the reliability and durability required to extend your engine’s service life and minimize downtime.

Key Features and Specifications

• Engine Compatibility: Cummins NT855, NH855, and N14 series engines.
• Standard Dimensions (STD): 139.70 mm bore size.
• Ring Configuration: 3.75 mm x 2.90 mm x 2.90 mm x 4.75 mm.
• Superior Sealing: Prevents blow-by and optimizes cylinder compression.
• Enhanced Oil Control: Reduces oil consumption and minimizes exhaust emissions.

Cross-Reference / Interchange Part Numbers

This part replaces / is interchangeable with the following part numbers:

• 4089810
• 3801056