What is the purpose of the HVOF Moly coating on these piston rings?

The HVOF Moly coating on the ring face helps to reduce friction and wear against the cylinder wall. This advanced coating aids in a smoother break-in process and helps maintain a proper seal over time.

What does 'OE quality' mean for these Mahle rings?

OE quality means these rings are manufactured to meet the same standards and specifications as the original parts that came with your vehicle from the factory. Mahle is known for producing high-quality engine components that perform reliably.

Are these piston rings suitable for all engine builds?

These rings are specifically designed for a 4.125-inch bore and feature performance-oriented coatings. While they are well-built, always verify that the ring dimensions and specifications match your engine's requirements, especially for performance or custom builds.

Mahle OE Piston Rings 3011066B

Name: Mahle Rings Perf Plasma Steel Top Ring 4.125in 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-4-125in-x-1-0mm-143in-rw-hvof-mo-t14-47891
Price: 853.09 USD
Availability: BackOrder

Mahle Rings Perf Plasma Steel Top Ring 4.125in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

$853.09

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 steel top rings for 4.125in bores. Bulk pack of 48.

Key Features

Fits a 4.125 inch bore size.
Top ring thickness is 1.0mm.
Features a .143 inch radial width.
Constructed from plasma-coated steel for durability.
Includes an HVOF Moly coating on the ring face for improved wear resistance and break-in.
Comes in a bulk pack of 48 rings, ideal for engine builders.

This product is designed for a 4.125 inch bore. Always confirm compatibility with your specific engine build and manufacturer specifications.

Secure CheckoutFast Shipping631-982-0042

Product Details

Mahle is a well-known name in the automotive industry, especially for their engine components. They're recognized for their OE (Original Equipment) quality parts, meaning they meet the same standards as what comes on your vehicle from the factory. This specific product is a set of performance plasma steel top piston rings, designed for a 4.125-inch bore. These rings are built with a 1.0mm thickness and a .143-inch radial width, featuring an HVOF Moly coating for improved durability and reduced friction.

When you're rebuilding an engine, especially a performance-oriented one, the piston rings are critical for sealing the combustion chamber, controlling oil consumption, and transferring heat. These Mahle rings are constructed from plasma-coated steel, a strong material that holds up well under the stresses of combustion. The HVOF (High Velocity Oxygen Fuel) Moly coating is applied to the ring face, which is the part that contacts the cylinder wall. This advanced coating helps to break in smoothly with the cylinder walls, reducing wear and ensuring a good seal right from the start. This bulk pack contains 48 rings, making it suitable for engine builders or shops working on multiple engines or high-performance builds where precision and reliability are paramount.

It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine build's requirements and manufacturer's instructions for proper installation and compatibility.