What does the .020 in the part number mean?

The '.020' in the part number indicates that these rings are 0.020 inches undersize. This is a common size for engine rebuilds where the cylinder walls may have been honed or bored out to a slightly larger diameter.

What is the benefit of moly coating on piston rings?

Moly coating on piston rings helps to reduce friction between the ring and the cylinder wall. This can lead to improved engine efficiency, reduced wear, and a longer service life for both the rings and the cylinder bore.

Are these rings compatible with all AMC 151 2.5L engines?

This ring set is designed for AMC 151 2.5L engines used in specific vehicle models and years, including American Motors, Buick, Chevrolet, and Pontiac applications from 1977-1980. It's important to verify fitment for your exact vehicle model and year.

Mahle Moly Piston Ring Set 41240CP.020

Name: Mahle Rings AMC 151 2.5L Eng 79-80 Buick 151 2.5L Eng 1980 Chevy 151 2.5L Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-amc-151-2-5l-eng-79-80-buick-151-2-5l-eng-1980-chevy-151-2--t14-50742
Price: 34.28 USD
Availability: BackOrder

Mahle Rings AMC 151 2.5L Eng 79-80 Buick 151 2.5L Eng 1980 Chevy 151 2.5L Moly Ring Set

$34.28

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle Moly Piston Ring Set for AMC 151 2.5L engines. Reduces friction and oil consumption for longer engine life.

Key Features

Fits 1977-1980 Pontiac Sunbird, 1978-1980 Chevrolet Monza, 1980 Jeep CJ5, and many other AMC 151 2.5L engines.
Moly coating on the rings helps reduce friction and wear.
Designed to minimize engine oil consumption.
Contributes to a longer engine service life.
This set is 0.020 inch undersize for proper fitment during engine rebuilds.
Built to meet original equipment requirements.

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Will this fit your vehicle?

Product Details

If you're rebuilding the engine in your classic American Motors, Buick, Chevrolet, Jeep, Oldsmobile, or Pontiac, a fresh set of piston rings is essential. This Mahle Moly Piston Ring Set is designed to help minimize oil consumption and reduce friction, contributing to a longer service life for your engine. These rings are built to meet the demands of original equipment requirements, ensuring a solid fit and function.

Mahle has engineered these rings with a focus on advanced technology to improve performance. The moly coating on these rings helps to reduce friction between the piston and cylinder wall, which can lead to improved efficiency and a smoother running engine. This set is specifically sized at 0.020 inches undersize, which is crucial for proper fitment during an engine rebuild where cylinder honing may have occurred.

This ring set fits a wide range of vehicles from the late 70s and early 80s, including models like the Chevrolet Monza, Pontiac Sunbird, and Jeep CJ5. Always refer to the fitment guide to confirm compatibility with your specific vehicle.