Piston Ring Set 4.055 043 043 3.0mm

The Piston Ring Set 4.055 043 043 3.0mm from MAHLE Pistons is a precision-engineered replacement component designed for high-performance engines and rebuild applications. This complete ring set is built for engines requiring a 4.055-inch bore diameter, making it essential for rebuilders, performance shops, and serious enthusiasts restoring or modifying engines to exact OEM specifications.

This piston ring set features a configuration with two compression rings measuring 0.043 inches (1.1mm) and an oil control ring measuring 3.0mm. The oil ring thickness helps control oil consumption while maintaining proper lubrication film on the cylinder wall. The dual compression rings work together to effectively seal combustion pressure during all four strokes, with the profile and material composition engineered to minimize friction while withstanding the thermal and mechanical stress of contemporary engine operation.

MAHLE's manufacturing process ensures consistent bore-to-ring clearances and proper gap positioning for reliable installation. This ring set is ideal for engine builders machining 4.055-inch bores, whether for street performance, competition, or factory restoration work. Proper installation is crucial for achieving optimal performance and longevity of the engine.