What does the '.020' in the part number mean?

The '.020' indicates that this ring set is 0.020 inches undersize. This is used when the engine cylinders have been bored out and honed to a larger diameter during an engine rebuild.

What is the benefit of moly-coated rings?

Moly (molybdenum) coating on the top piston ring helps to reduce friction between the ring and the cylinder wall. It also improves the ring's ability to seal against the cylinder, which can help minimize oil consumption and increase the ring's service life.

Are these rings compatible with all 5.0L engines?

This ring set is designed for specific 5.0L engines found in many Buick, Checker, and Chevrolet vehicles from the 1970s through the 1990s. Always verify your specific engine code and vehicle fitment to ensure compatibility.

Mahle OE Piston Rings 41137CP.020 - Buick, Chevy, Cadillac

Name: Mahle Rings Buick 305 5.0L Eng 77-91 Checker 305 5.0L Eng 78-80 Chevy Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-buick-305-5-0l-eng-77-91-checker-305-5-0l-eng-78-80-chevy-m-t14-50634
Price: 87.94 USD
Availability: BackOrder

Mahle Rings Buick 305 5.0L Eng 77-91 Checker 305 5.0L Eng 78-80 Chevy Moly Ring Set

$87.94

On Backorder

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

Mahle OE Moly Ring Set for 5.0L engines. Reduces friction and oil consumption for longer engine life.

Key Features

Fits Buick, Checker, and Chevrolet 5.0L engines.
This is a 0.020 inch undersize ring set.
Moly coated top rings help reduce friction and improve cylinder wall sealing.
Designed to minimize engine oil consumption.
Contributes to longer engine service life.
Mahle OE brand for reliable performance.

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Will this fit your vehicle?

Product Details

These Mahle OE Moly Ring Sets are made to a 0.020 inch undersize, which is important when rebuilding an engine where the cylinders might have been honed slightly larger than standard. They are designed to work with Buick, Chevrolet, and Cadillac 5.0L engines from the late 70s through the early 90s, covering a wide range of popular vehicles like the Chevrolet Camaro, Buick Regal, and Cadillac Brougham.

Mahle focuses on reducing friction and minimizing oil consumption, which helps your engine run more efficiently and last longer. This set uses moly (molybdenum) coated top rings, a common and effective choice for improving sealing and reducing wear between the piston ring and cylinder wall. This means you get a well-built set that contributes to a healthier engine rebuild.

When you're putting an engine back together, getting the right piston rings is key to a good seal and proper oil control. This Mahle set is a solid option for many 5.0L V8 applications, helping ensure your rebuild is done right.