What is HVOF Moly coating?

HVOF stands for High Velocity Oxygen Fuel. This is a thermal spray process used to apply a Molybdenum coating. It creates a dense, well-bonded layer that helps reduce friction and wear on the piston ring surface.

What does plasma treatment do for a piston ring?

Plasma treatment hardens the surface of the steel ring. This process improves the ring's resistance to wear and heat, helping it maintain its shape and sealing ability under engine operating conditions.

Can these rings be shipped to California?

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

Mahle OE Piston Rings 3011258

Name: Mahle Rings Performance Plasma Steel Top Ring 3.771in x 1.0MM .143in RW HVOF Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-performance-plasma-steel-top-ring-3-771in-x-1-0mm-143in-rw--t14-47969
Price: 88.61 USD
Availability: BackOrder

Mahle Rings Performance Plasma Steel Top Ring 3.771in x 1.0MM .143in RW HVOF Moly Ring Set

$88.61

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 is known for reliable engine components. These plasma steel top rings feature an HVOF Moly coating for improved durability.

Key Features

Plasma steel top ring construction for durability.
Features an HVOF Moly coating for improved wear resistance and lubrication.
Measures 3.771 inches in diameter.
Ring width is 1.0mm.
Ring height is .143 inches.
This part is not CARB approved and cannot be shipped to California.

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Product Details

Mahle OE is a well-known name in the engine parts world, trusted for their reliable components. This set of top piston rings is made from plasma-treated steel, a strong material chosen for its resilience. They measure 3.771 inches in diameter with a 1.0mm width and a .143 inch height, designed to fit specific applications where improved sealing and wear resistance are key. The HVOF Moly coating adds another layer of protection, helping these rings stand up to the demands of engine operation and promoting better cylinder wall lubrication.

When you're rebuilding an engine or looking to replace worn piston rings, a well-built set like these from Mahle OE can make a notable difference in performance and longevity. The plasma treatment and Moly coating are advanced techniques that help ensure a solid seal between the piston and cylinder wall, which is crucial for maintaining compression and preventing oil from entering the combustion chamber. This attention to detail in their construction means you're getting a part that’s built to perform and last.