Mahle 41470CP.030 Engine Piston Ring Set

Engine Piston Ring Set Overview

MAHLE 41470CP.030 is a premium oversize piston ring set for select GM compact applications with a 3.416-inch bore and 0.030-inch oversize specification. It is built around low-friction ring design and OE-driven engineering for controlled oil use and durable sealing.

Key Features

• 0.030-inch oversize piston ring set for 3.416-inch bore applications
• Top ring uses carbon steel with a chrome face coating
• Second ring uses cast iron for stable sealing performance
• Oil ring assembly uses stainless steel with a shallow groove design
• Premium-grade construction for engine rebuild work

Detailed Description

MAHLE 41470CP.030 is engineered for rebuilds that require an oversize piston ring set with specific bore and ring stack dimensions. The top ring measures 1.50 mm, the second ring measures 1.50 mm, and the oil ring assembly measures 3.00 mm, with a shallow groove oil ring design to match the listed application. The chrome-faced ring surfaces and mixed-material construction are selected to reduce friction, control oil consumption, and support longer service life. This part cross-references Hastings Piston Rings (e.g., 2M4601030) for the same application.

What It Is Used For

• Restoring cylinder sealing after wear or scoring
• Addressing oil consumption caused by worn ring packs
• Correcting compression loss during engine rebuilds
• Replacing worn rings in oversize bore service work
• Supporting proper combustion chamber sealing

Installation Notes and Tips

Verify bore size, ring end gap, and groove dimensions before installation. This set is listed for 0.030-inch oversize service, so cylinder machining and measurement should match the rebuild specification. Confirm the ring stack orientation and shallow groove requirement during assembly. Compatible with Pontiac Sunbird, Pontiac LeMans, Pontiac Optima, Pontiac Grand Am, Pontiac Tempest, Buick Skyhawk, Oldsmobile Firenza, Pontiac J2000 Sunbird, and Pontiac J2000 applications listed in the fitment data.

Quality Assurance

MAHLE piston rings are developed to OE requirements and are positioned around reduced friction, lower oil use, and extended service life. The premium material mix and chrome-faced design reflect MAHLE's focus on advanced ring technology for engine rebuild applications. Fits 1983-1994 Pontiac and Buick compact models listed in the fitment data, including Pontiac Sunbird and Buick Skyhawk applications.