What is the coating on these piston rings?

These top piston rings feature an HVOF (High-Velocity Oxygen Fuel) moly coating. This is a well-built surface treatment applied to the steel ring to help reduce friction and wear against the cylinder wall.

What does the 'plasma steel' construction mean?

Plasma steel refers to the material and manufacturing process of the ring. It indicates a steel ring that has undergone plasma spraying, which contributes to its durability and ability to maintain a good seal under high engine loads.

Are these rings suitable for all engine builds?

These rings are designed for high-performance applications and come in a bulk pack of 48. They are not CARB approved and cannot be shipped to California. Always consult your engine's specific build requirements and service manual.

Mahle OE Piston Rings 3011269B

Name: Mahle Rings Perf Plasma Steel Top Ring 3.932in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-plasma-steel-top-ring-3-932in-x-1-0mm-143in-rw-hvof-mo-t14-47946
Price: 538.12 USD
Availability: BackOrder

Mahle Rings Perf Plasma Steel Top Ring 3.932in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

$538.12

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 steel top piston rings. 3.932in bore, 1.0mm thickness. Bulk pack of 48.

Key Features

This bulk pack contains 48 Mahle OE plasma steel top piston rings.
Each ring has a 3.932-inch bore diameter.
The top ring thickness is 1.0mm with a 0.143-inch width.
Features plasma-sprayed steel construction for enhanced durability.
Includes HVOF moly coating on the top ring for reduced friction and wear.
Designed for high-performance engine applications.

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Product Details

This bulk pack includes 48 Mahle OE plasma steel top piston rings, each measuring 3.932 inches in bore diameter with a 1.0mm thickness and a 0.143-inch ring width. These rings are designed for high-performance applications, featuring a plasma-sprayed steel construction for durability and improved sealing.

The top ring utilizes an HVOF (High-Velocity Oxygen Fuel) moly coating, a well-built surface treatment that helps reduce friction and wear between the ring and cylinder wall. This advanced coating is applied to a steel base, offering a strong and resilient component that can withstand the rigors of demanding engine builds. The 1.0mm thickness is a common specification for performance engines, allowing for efficient sealing and heat transfer.

This set is intended for engine builders and performance shops working on multiple engines or large projects. Please note that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for installation procedures and recommended clearances.