What is the benefit of gas nitride steel for piston rings?

Gas nitride steel hardens the ring surface, which makes it more resistant to wear and helps reduce friction. This is especially beneficial in high-performance engines that experience higher cylinder pressures and temperatures, ensuring a better seal.

What does the .043in x .170in measurement refer to?

The .043-inch measurement refers to the thickness of the top compression ring, while the .170-inch measurement indicates the width of the ring groove on the piston that the ring fits into.

Why can't these rings be shipped to California?

These piston rings are not CARB (California Air Resources Board) approved. This means they do not meet California's emissions standards for replacement parts, and therefore cannot be legally shipped to or sold within the state of California.

Mahle OE Piston Rings 4.610in x .043in x .170in 3011042B

Name: Mahle Rings Gas Nitride Steel Perf Top Comp 4.610in x .043in .170 RW Plain Ring Set (48 Qty Bulk Pk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-gas-nitride-steel-perf-top-comp-4-610in-x-043in-170-rw-plai-t14-49558
Price: 584.04 USD
Availability: BackOrder

Mahle Rings Gas Nitride Steel Perf Top Comp 4.610in x .043in .170 RW Plain Ring Set (48 Qty Bulk Pk)

$584.04

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 steel performance piston rings. 4.610in bore, .043in top ring thickness. Not CARB approved.

Key Features

Gas nitride steel construction hardens the ring surface for improved wear resistance and reduced friction.
Designed for a 4.610-inch cylinder bore.
Features a .043-inch thick top compression ring.
The ring groove width is .170 inches.
This is a bulk pack containing 48 piston rings.
Mahle OE is a well-known brand in engine components.

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Product Details

The gas nitride steel construction of these Mahle piston rings is a key detail for performance builds. This treatment hardens the ring surface, making it more resistant to wear and reducing friction. This is crucial for engines that see higher cylinder pressures and temperatures, helping to maintain a good seal under demanding conditions.

This set is designed for a 4.610-inch bore and features a .043-inch thick top compression ring, with a .170-inch ring groove width. The gas nitride process is a well-known method for improving ring durability and performance, especially in applications where the engine is pushed harder than stock. You're getting a bulk pack of 48 rings, which is ideal for shops or builders working on multiple engines or larger projects.

When rebuilding an engine, the piston rings are critical for sealing the combustion chamber, controlling oil consumption, and transferring heat from the piston to the cylinder wall. Mahle is a well-known name in engine components, and these rings are built to meet the needs of performance applications. Keep in mind these are not CARB approved and cannot be shipped to California.