What does the nitride steel construction mean for durability?

The nitride treatment on these steel rings helps them resist wear and withstand higher temperatures. This means they can maintain a good seal and control oil more effectively over a longer period, especially in demanding engine conditions.

What is the purpose of the Napier hook second ring?

The Napier hook on the second ring is designed to help scrape oil from the cylinder wall and return it to the crankcase. This feature aids in oil control, preventing excess oil from entering the combustion chamber.

Are these rings suitable for all engine builds?

These rings are specifically designed for performance gas engines and are noted for their durability. However, they are not CARB approved and cannot be shipped to California. Always confirm compatibility with your specific engine build and local regulations.

Mahle OE Piston Rings 3011172 - Performance Gas Nitride Stee

Name: Mahle Rings Performance Gas Nitride Steel 4.055 x .043 .157 RW Plain Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-performance-gas-nitride-steel-4-055-x-043-157-rw-plain-ring-t14-48635
Price: 102.66 USD
Availability: BackOrder

Mahle Rings Performance Gas Nitride Steel 4.055 x .043 .157 RW Plain Ring Set

$102.66

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 Rings. Part# 3011172. Nitride steel construction for improved durability.

Key Features

Fits engines with a 4.055 inch bore.
Features a .043 inch top ring and a .157 inch oil ring.
Includes a standard Napier hook second ring for improved oil control.
Nitride steel construction offers improved wear resistance and durability.
Designed for performance applications where engine longevity is important.

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Product Details

This is a Mahle OE Performance Gas Nitride Steel Ring Set, part number 3011172. These rings are designed for engines with a 4.055 inch bore and feature a .043 inch top ring, .157 inch oil ring, and a standard Napier hook second ring. The nitride steel construction offers improved wear resistance and durability, making them a solid choice for performance applications where engine longevity is key.

The nitride treatment on these rings helps them stand up to the rigors of combustion and heat, providing a more consistent seal over time compared to standard cast iron rings. This can lead to better compression and oil control, which are crucial for maintaining engine health and performance. They are a plain ring set, meaning they don't have special coatings beyond the nitride treatment, focusing on robust materials and a proven design.

When rebuilding an engine, choosing quality piston rings is essential for proper cylinder sealing and oil management. These Mahle rings are a well-built option that balances performance needs with the reliability you expect from OE-level components.