Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Mahle OE Moly ring set is a steel-top moly piston ring kit sized 3.937" with a 1.2mm section and listed ring width .133RW, intended for high-quality engine rebuilds. These rings are specified as performance-grade components and present the dimensional details needed to confirm fitment. Use the listed size and thickness to match the correct piston and bore for your application.
Mahle Rings Performance HV385 Steel Top 3.937 x 1.2MM .133RW Moly Ring Set
