What is the purpose of nitride steel piston rings?

Nitride steel piston rings are treated to enhance their surface hardness and wear resistance. This makes them more durable and better able to withstand the high temperatures and pressures found in performance gas engines, leading to a longer service life.

What does the '48 Qty Bulk Pack' mean?

This means the set includes 48 individual piston ring sets. This quantity is ideal for engine builders or shops working on multiple engines simultaneously, offering a cost-effective solution for high-volume projects.

Are these rings suitable for all engine types?

These rings are specifically designed for performance gas engines and a 4.355 inch bore. They are not CARB approved and cannot be shipped to California. Always confirm fitment and suitability for your specific engine build.

Mahle OE Piston Rings 4.355" Bore Nitride Steel RW - 3011204

Name: Mahle Rings Performance Gas Nitride Steel 4.355 x .043 .171 RW Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-performance-gas-nitride-steel-4-355-x-043-171-rw-plain-ring-t14-48569
Price: 569.20 USD
Availability: BackOrder

Mahle Rings Performance Gas Nitride Steel 4.355 x .043 .171 RW Plain Ring Set (48 Qty Bulk Pack)

$569.20

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 Gas Nitride Steel Piston Ring Set. 4.355" bore, .043/.043/.171 ring sizes. Bulk pack for engine builds.

Key Features

Fits 4.355 inch bore engines.
Features a .043" top ring, .043" second ring, and .171" oil control ring.
Constructed from nitride steel for improved durability and wear resistance.
Designed for performance gas engine applications.
Bulk pack contains 48 individual ring sets.
Not CARB approved; cannot ship to California.

This is a bulk pack of piston rings designed for a 4.355 inch bore. Please verify compatibility with your specific engine build and manufacturer specifications.

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Product Details

When you're rebuilding the top end of a performance engine, the piston rings are a critical component that seals the combustion chamber and controls oil consumption. This Mahle OE Performance Gas Nitride Steel Ring Set is designed for serious engine builds where reliability and performance are paramount. The nitride steel construction offers improved durability and wear resistance, especially under higher cylinder pressures found in performance applications. These rings are built to handle the demands of gas engines, ensuring a solid seal for efficient combustion.

This particular set is a bulk pack of 48 rings, making it ideal for shops or builders working on multiple engines or high-volume projects. The bore size is 4.355 inches, with a ring groove configuration of .043 inches for the top and second rings, and .171 inches for the oil control ring. The nitride treatment on the steel rings helps them withstand the heat and stress of combustion, contributing to a longer service life and consistent performance over time. Proper installation is key, so always refer to your engine's service manual for specific ring gap and seating procedures.

Because these rings are not CARB approved, they cannot be shipped to California. This set is a solid choice for engine builders looking for well-made, durable piston rings from a trusted name in engine components. Ensure your engine build benefits from reliable sealing and oil control with these performance-oriented rings.