What is plasma moly steel and why is it used for piston rings?

Plasma moly steel is a strong alloy chosen for its ability to handle the high temperatures and pressures found in an engine's combustion chamber. The plasma moly coating further enhances durability by reducing friction and wear against the cylinder wall.

Are these rings a direct fit replacement?

Yes, these rings are designed to meet OE specifications, meaning they are intended to fit directly in place of your original equipment piston rings without modification.

Can these rings be shipped to California?

No, these rings are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle OE Piston Rings 3011118 - Plasma Moly Steel

Name: Mahle Rings Plasma Moly Steel Top Compression Ring 4.445in x .0625in .190in RW Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-plasma-moly-steel-top-compression-ring-4-445in-x-0625in-190-t14-47572
Price: 116.06 USD
Availability: BackOrder

Mahle Rings Plasma Moly Steel Top Compression Ring 4.445in x .0625in .190in RW Moly Ring Set

$116.06

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 Plasma Moly Steel Top Compression Rings. These rings are built for durability and performance in your engine.

Key Features

Fits Mahle Rings Plasma Moly Steel Top Compression Ring 4.445in x .0625in .190in RW Moly Ring Set.
Constructed from plasma moly steel for improved durability and heat resistance.
Features a .0625 inch thickness and .190 inch width for a precise piston-to-cylinder wall seal.
Plasma moly coating helps reduce friction and wear, extending component life.
Designed as a direct replacement for OE specifications.

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Product Details

These Mahle OE top compression rings are made from plasma moly steel, a strong material chosen for its ability to withstand high temperatures and pressures inside the cylinder. The .0625 inch thickness and .190 inch width are specific dimensions that ensure a proper seal between the piston and cylinder wall, which is critical for maintaining compression and preventing blow-by. This set is designed to be a direct replacement for your original rings, helping to restore lost engine performance.

The plasma moly coating on these rings is a notable feature that helps reduce friction and wear. This means the rings can slide more smoothly against the cylinder wall, leading to a longer service life for both the rings and the cylinder itself. When you're rebuilding an engine or replacing worn-out components, using well-built rings like these from Mahle OE is a solid choice for ensuring reliable operation and optimal power output. They are designed to fit right and perform as expected, making the installation process straightforward for a mechanic.