Piston Ring Set 4.190 Bore .043 .043 3.0mm

The Piston Ring Set 4.190 Bore .043 .043 3.0mm by MAHLE PISTONS is a precision-engineered component designed for high-performance engine builds and rebuild operations. This ring set is ideal for both enthusiasts and professional mechanics working with large-displacement or stroker engines, ensuring proper compression sealing and oil control across the entire operating range.

Featuring a 4.190-inch bore diameter, this piston ring set includes dual compression ring thicknesses of .043 inches and a 3.0mm oil ring, delivering optimal ring-to-bore fit and minimal blowby. The specific ring gap and thickness combination maximizes sealing efficiency while reducing friction and heat generation, which are critical factors in maintaining horsepower and fuel economy. MAHLE's advanced manufacturing process and premium material composition ensure these rings withstand extreme pressures and temperatures.

Builders and mechanics restoring or modifying engines in the 4.190-inch bore range—commonly found in big-block Chevys, Fords, and other performance platforms—will find this ring set essential for any top-end rebuild. Proper installation with correct ring gap settings and bore honing ensures maximum performance and longevity. The ring set configuration includes 2 compression rings and 1 oil control ring, making it a comprehensive solution for engine rebuilds.