Fortpro Piston Ring Set in Standard Size for Cummins 4B / 6B Series Engines is designed to restore and maintain the original performance of your engine. With a robust construction and high quality materials, these rings ensure a perfect seal and ideal compression, minimizing oil consumption and optimizing engine efficiency. Perfectly compatible with OEM part numbers 3802230 and 505080, these rings provide the reliability and durability your engine needs to handle everyday demands. Improve the life of your engine and ensure optimal performance with this premium quality piston ring set.








