Mahle 41864CP Engine Piston Ring Set

Engine Piston Ring Set Overview

Mahle 41864CP is a premium engine piston ring set built around OE-driven design requirements. It uses a plasma-moly face coating, carbon steel top ring, cast iron second ring, and stainless steel oil ring assembly to help control friction and oil consumption while supporting long service life.

This piston ring set is a fitment-based replacement for a range of GM applications, including Chevrolet Equinox, Chevrolet Impala, and Pontiac Torrent. If you are sourcing Mahle 41864CP for a rebuild, the ring dimensions and materials are specified for standard bore applications with a 3.622-inch bore diameter.

Key Features

• Premium-grade piston ring set for engine rebuild service
• Plasma-moly face coating for reduced friction at the ring surface
• Carbon steel top ring, cast iron second ring, and stainless steel oil ring assembly
• Shallow-groove oil ring assembly design
• Standard oversize specification with a 3.622-inch bore diameter
• Engineered to support lower oil consumption and extended service life

Detailed Description

Mahle 41864CP is an engine piston ring set developed to meet demanding OE-style requirements for sealing, oil control, and durability. The ring package combines a 1.20 mm carbon steel top ring, 1.50 mm cast iron second ring, and 4.00 mm stainless steel oil ring assembly, with a plasma-moly facing on the ring surface to reduce wear under operating load. These construction details make it a practical choice for rebuild work where ring material, thickness, and coating must match the application closely. This part cross-references Hastings Piston Rings 2C4893 and Sealed Power E918K for the same application.

Compatible with Chevrolet Equinox, Chevrolet Impala, Pontiac Torrent, and other listed GM models, Mahle 41864CP is also a relevant search match for Chevrolet Impala piston ring set, Pontiac Torrent engine ring set, and Chevrolet Equinox standard bore piston rings. The part number 41864CP is useful when verifying the correct ring set against engine specifications and fitment data.

Common Uses

• Restoring cylinder sealing after engine wear
• Reducing oil consumption caused by worn rings
• Addressing low compression from ring fatigue or glazing
• Replacing damaged or worn piston rings during overhaul
• Supporting proper oil control in a standard-bore rebuild

Installation Notes and Tips

Confirm bore diameter, ring thickness, and ring material before installation. Match the ring set to the engine specification and inspect cylinder walls, pistons, and ring grooves during assembly. For best results, follow the engine builder’s clearance and break-in procedures, and verify fitment against the vehicle listing for the exact application. Mahle 41864CP should be installed as part of a complete rebuild process with careful measurement and cleaning.

Quality Assurance

MAHLE develops piston rings around OE requirements, with an emphasis on friction reduction, oil control, and service life. The 41864CP part number identifies a premium ring set built to the listed material and dimensional specifications.