What is plasma moly steel?

Plasma moly steel is a type of steel that has been treated with a plasma moly coating. This coating is known for its hardness and low friction properties, which helps reduce wear on the ring and cylinder wall over time.

What does the ring thickness of .0625 inches signify?

A .0625 inch ring thickness is a specific dimension designed to create a precise fit within the piston groove and seal effectively against the cylinder wall. This helps maintain optimal compression during the combustion cycle.

Are these rings suitable for all engine builds?

These rings are a well-built option for many engine rebuilds. However, it's important to verify compatibility with your specific engine model and intended use, as they are not CARB approved and cannot be shipped to California.

Mahle OE Piston Rings 3011109 - Plasma Moly Steel

Name: Mahle Rings Plasma Moly Steel Top Compression Ring 4.255in x .0625in .190in RW Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-plasma-moly-steel-top-compression-ring-4-255in-x-0625in-190-t14-47590
Price: 109.95 USD
Availability: BackOrder

Mahle Rings Plasma Moly Steel Top Compression Ring 4.255in x .0625in .190in RW Moly Ring Set

$109.95

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 for 4.255in bore. Features a .0625in thick ring for improved sealing.

Key Features

Fits a 4.255 inch bore diameter.
Features a .0625 inch ring thickness for effective sealing.
Constructed from plasma moly steel for improved durability.
Includes a plasma moly coating to reduce friction and wear.
Designed to maintain proper engine compression.

Secure CheckoutFast Shipping631-982-0042

Product Details

These Mahle OE top compression rings are made from plasma moly steel, a strong material chosen for its durability and ability to handle high temperatures. The ring measures 4.255 inches in bore diameter and features a .0625 inch thickness, which helps create a tight seal against the cylinder wall. This specific design is crucial for maintaining proper compression within your engine, ensuring efficient combustion and optimal power output.

The plasma moly coating on these rings is a notable detail. It's applied to reduce friction between the ring and the cylinder wall, which can lead to less wear over time and potentially improve oil control. This is important because a well-sealed cylinder is key to preventing blow-by, where combustion gases escape past the piston rings into the crankcase. By keeping that blow-by to a minimum, you help maintain consistent engine performance and reduce oil consumption.

When you're rebuilding an engine, getting the right piston rings is critical for the overall health and longevity of the motor. These Mahle rings are a solid option for many engine builds where a reliable, well-built compression ring is needed.