What does the nitride treatment on the top ring do?

The nitride treatment on the top compression ring is a surface hardening process. It significantly improves wear resistance and helps the ring maintain a strong seal against the cylinder wall, especially under high temperatures and pressures found in performance engines.

What is the advantage of buying a bulk pack of 48 sets?

A bulk pack of 48 sets is ideal for engine builders or shops that work on multiple engines simultaneously. It ensures you have enough high-quality rings on hand for several projects, often at a more economical price per set compared to smaller quantities.

Are these rings suitable for all types of engines?

These rings are specifically designed for engines with a 4.630-inch bore and are noted as performance rings. While they are well-built, their suitability depends on the specific piston design and the overall performance goals of your engine build. Always confirm compatibility with your piston manufacturer's specifications.

Mahle OE Piston Rings 3011046B - 4.630in Bore

Name: Mahle Rings Gas Nitride Steel Perf Top Comp 4.630in x .043 .170 RW Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-gas-nitride-steel-perf-top-comp-4-630in-x-043-170-rw-plain--t14-49554
Price: 584.04 USD
Availability: BackOrder

Mahle Rings Gas Nitride Steel Perf Top Comp 4.630in x .043 .170 RW Plain Ring Set (48 Qty Bulk Pack)

$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 piston rings for 4.630in bore engines. Nitride treated top ring. Bulk 48-pack.

Key Features

Fits engines with a 4.630-inch bore.
Steel construction for durability.
Top compression ring is nitride treated for improved wear resistance and sealing.
Top ring thickness is 0.043 inches.
Oil control ring thickness is 0.170 inches.
Comes in a bulk pack of 48 sets.

These piston rings are designed for engines with a 4.630-inch bore. Please verify compatibility with your specific engine build before purchase.

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Product Details

Mahle is a well-known name in the automotive industry, especially for their engine components. This particular product is a bulk pack of 48 sets of performance piston rings, designed for engines with a 4.630-inch bore. These rings are built with steel for durability and feature a nitride treatment on the top compression ring, which helps improve wear resistance and sealing under demanding conditions.

The top compression ring has a thickness of 0.043 inches, and the oil control ring is 0.170 inches, a common setup for performance applications. The 'RW' designation typically refers to the ring width and groove specification, ensuring a proper fit within the piston groove. This large quantity pack is ideal for engine builders or shops working on multiple performance engines, offering a cost-effective solution for high-volume needs. The plain ring set means they are designed for straightforward installation into compatible pistons.

When rebuilding or modifying 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's focus on OE quality and performance means these rings are made to meet strict standards, ensuring reliable operation and improved engine efficiency for your build.