What is the benefit of a plasma moly coating?

The plasma moly coating on these rings helps to reduce friction between the ring and the cylinder wall. This leads to less wear over time and can help maintain a better seal under demanding conditions.

Are these rings suitable for all engine builds?

These are performance-oriented rings with a plasma moly coating, designed for improved durability and performance. They are a popular choice for engine rebuilds that may see higher cylinder pressures or temperatures than stock applications.

What does the sizing (4.020 x .0625 x .190) refer to?

This sizing refers to the dimensions of the top compression ring. 4.020 inches is the bore size it fits, .0625 inches is the ring thickness, and .190 inches is the ring height within the piston groove.

Mahle OE Piston Rings 3011014 - Performance Plasma Moly

Name: Mahle Rings Performance Plasma Moly Steel Top Compression Ring 4.020 x .0625 .190 RW Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-performance-plasma-moly-steel-top-compression-ring-4-020-x--t14-48024
Price: 108.43 USD
Availability: BackOrder

Mahle Rings Performance Plasma Moly Steel Top Compression Ring 4.020 x .0625 .190 RW Moly Ring Set

$108.43

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 performance plasma moly steel top compression rings. Built for improved durability and performance.

Key Features

Mahle OE performance plasma moly steel top compression ring set.
Features a plasma moly coating for reduced friction and improved wear resistance.
Top compression ring measures 4.020 inches in bore size.
Ring thickness is .0625 inches.
Ring height is .190 inches.
Steel construction offers good durability.

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Product Details

Mahle is known for making solid OE replacement parts, and these Performance Plasma Moly top compression rings are no exception. If you're rebuilding an engine and need reliable rings that can handle a bit more than stock, these are a popular choice. They're designed to work well in performance applications where you might see higher cylinder pressures or temperatures.

These rings are made from steel and feature a plasma moly coating. That plasma moly treatment is a key feature; it helps reduce friction and wear in the cylinder bore, which means the rings can last longer and maintain a good seal under stress. The top ring is 4.020 inches in bore size, with a thickness of .0625 inches and a height of .190 inches. This specific sizing is important for ensuring a proper fit and seal in the piston groove.

When you're putting an engine back together, getting the piston rings right is crucial for compression and oil control. These Mahle rings offer a well-built option for those looking for something a step up from basic replacement parts.