This set of piston, bolt, and rings is designed for the Cummins 4BTA3.9 engine. The set includes a high-quality piston, the corresponding bolt, and all necessary rings for optimal sealing.

• Piston: Made from durable materials, ensuring superior performance and strength.
• Rings: Includes compression and oil rings for effective sealing and reduced oil consumption.
• Bolt: Designed to fit perfectly with the piston, ensuring smooth and efficient movement.
• Bolt locks: Two locks to secure the bolt in the piston.