Mahle Rings 4.040in Bore .043in1.5MM3.00MM Plasma Moly Ductile Std Tension Reduced Rad Moly Ring Set

This Mahle OE ring set includes all the piston rings you need for a complete engine rebuild. Specifically, you get the top compression rings, second compression rings, and oil control rings for your pistons. These rings are designed for a 4.040-inch bore, with the top rings measuring .043 inches thick, the second rings at 1.5mm, and the oil rings at 3.00mm. They feature plasma moly coating on the top compression rings, which is a well-known method for increasing hardness and reducing friction, helping them seat properly against the cylinder wall.

Mahle has built these rings with ductile iron for the second compression rings, offering a good balance of strength and flexibility. They are set up with standard tension, suitable for a wide range of engine applications where consistent sealing is key. The reduced radial thickness design helps them fit into piston ring grooves efficiently. This set is a solid option when you're rebuilding an engine and need reliable components to ensure proper compression and oil control.

Please note that this ring set is not CARB approved and cannot be shipped to California. Always refer to your vehicle's specific service manual for detailed installation procedures and specifications.