Mahle 41669CP.020 Engine Piston Ring Set

Overview

MAHLE 41669CP.020 is a premium oversize piston ring set built for engines with a 4.020-inch bore and a 0.020-inch oversize specification. It is engineered for applications that need precise ring sealing, controlled oil use, and reduced friction in service.

Compatible With Chevrolet and GMC applications including Astro, Blazer, S10, Jimmy, Safari, Sonoma, S10 Blazer, Bravada, and Commercial Chassis models from 1992-1995, this ring set matches the listed fitment and ring dimensions for those engines.

Key Features

• 4.020-inch bore diameter with 0.020-inch oversize sizing
• Plasma-Moly ring face coating for improved wear resistance
• Carbon steel top and second rings for stable sealing performance
• Stainless steel oil ring assembly with shallow groove design
• Premium-grade construction for engine rebuild applications
• MAHLE 41669CP.020 part number for accurate ordering and identification

Detailed Description

MAHLE piston rings are developed around OE-level requirements, with an emphasis on lowering friction, reducing ring mass, and helping control engine oil consumption while supporting longer service life. The 41669CP.020 uses a plasma-moly face coating on the ring surface, carbon steel for the top and second rings, and a stainless steel oil ring assembly to support consistent sealing under rebuild conditions. The shallow groove oil ring design and listed axial heights help match the intended piston configuration. For Chevrolet S10 and GMC Sonoma rebuild work, MAHLE 41669CP.020 provides the dimensional and material details needed for a proper engine refresh.

What It Helps Address

• Excessive oil consumption from worn ring packs
• Loss of cylinder sealing and compression
• High friction from aged or damaged piston rings
• Engine rebuilds requiring oversize ring dimensions
• Wear-related blow-by and reduced combustion efficiency

Installation Notes

Verify bore size, piston groove dimensions, and oversize requirements before installation. Confirm the ring set matches the engine build and the listed fitment for your Chevrolet or GMC application. Clean ring grooves thoroughly and follow the engine builder’s ring end-gap and break-in procedures. The part number 41669CP.020 should be matched to the correct bore and piston specification during assembly.

Quality Assurance

MAHLE designs piston rings to OE-driven standards with a focus on friction control, oil management, and service life. Part number 41669CP.020 reflects premium construction and material selection for rebuild accuracy. This part cross-references Hastings Piston Rings (e.g., 2M4720020) and Sealed Power (e.g., E627K20) for the same application.