Mahle 51616CP.030 Engine Piston Ring Set

Engine Piston Ring Set Overview

MAHLE 51616CP.030 is a standard piston ring set for 4.030-inch bore applications with a 0.030-inch oversize. It is built for engines that need controlled oil use, reduced friction, and stable ring sealing in service.

Compatible With Chevrolet, GMC, Cadillac, Buick, Pontiac, Isuzu, and Workhorse applications listed below, this ring set supports a wide range of V8 and commercial-duty engines. The 51616CP.030 part number is used for fitment matching and catalog lookup.

Key Features

• 4.030-inch bore diameter with 0.030-inch oversize sizing
• Standard grade ring set for rebuild and service work
• Cast iron top ring and second ring for durable sealing performance
• Stainless steel oil ring assembly for oil control
• Shallow groove design for the specified piston configuration
• MAHLE OE-focused ring technology for reduced friction and longer service life

Detailed Description

MAHLE 51616CP.030 piston rings are engineered around OE requirements, with an emphasis on lowering friction and ring mass while helping control engine oil consumption. The ring package uses a cast iron top ring, cast iron second ring, and stainless steel oil ring assembly, along with a shallow groove design and standard grade construction. For rebuilders working on Chevrolet Silverado, Chevrolet Tahoe, GMC Yukon, or Chevrolet Corvette applications, the 51616CP.030 provides a cataloged oversize solution for matching the correct bore and ring configuration.

This part cross-references Hastings Piston Rings (e.g., 4626030) for the same application. The 51616CP.030 part number should be verified against bore size, piston groove design, and engine specifications before assembly.

What It Is Used For

• Restoring cylinder sealing after engine wear
• Reducing oil consumption caused by worn ring packs
• Improving compression retention in rebuilt engines
• Replacing rings during overbore engine service
• Addressing blow-by and related crankcase pressure issues

Installation Notes and Tips

Confirm the 4.030-inch bore diameter and 0.030-inch oversize before ordering. Match the shallow groove piston design and ring thickness specifications to the engine build, and inspect cylinder wall condition, piston grooves, and end gaps during installation. Use the vehicle application list to verify coverage for Chevrolet, GMC, and related platforms before final assembly.

Quality Assurance

MAHLE positions this piston ring set within its OE-driven engine component lineup, with design priorities centered on friction reduction, oil control, and service life. The 51616CP.030 is built to meet the dimensional and material requirements listed for the application.