What is the nitride finish on these piston rings?

The nitride finish is a surface treatment applied to the steel rings. It helps to harden the surface, which improves wear resistance and can contribute to longer ring life, especially in performance applications.

Are these rings suitable for all engine types?

These rings are specifically designed for performance gasoline engines. While they are a bulk pack of 48, they are not intended for diesel applications or standard, non-performance builds without verifying compatibility with your specific engine and pistons.

What does 'bulk pack' mean for these rings?

A bulk pack means you receive 48 rings in one package, which is more than typically needed for a single engine. This is ideal for engine builders, machine shops, or for projects requiring multiple sets of rings.

Mahle OE Piston Rings 3011179B - Performance Gas Nitride Ste

Name: Mahle Rings Perf Gas Nitride Steel 4.090 x .043 .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-gas-nitride-steel-4-090-x-043-157-rw-bulk-plain-ring-s-t14-48622
Price: 497.88 USD
Availability: BackOrder

Mahle Rings Perf Gas Nitride Steel 4.090 x .043 .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)

$497.88

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. Bulk pack of 48 rings for engine builds.

Key Features

Fits 4.090 inch bore size.
Rings measure .043 inch thick and .157 inch wide.
Constructed from durable steel with a nitride finish for improved wear resistance.
Bulk pack includes 48 rings, suitable for multiple engine builds.
Designed for performance gasoline engine applications.

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Product Details

Mahle OE offers this bulk pack of 48 performance gas piston rings, designed for engine rebuilding. These rings are made from steel with a nitride finish, measuring 4.090 inches in bore size with a thickness of .043 inches and a .157 inch ring width. The nitride treatment on these rings helps improve wear resistance and durability, making them a solid choice for performance applications where consistent sealing is critical. This set is intended for use in bulk engine builds or for shops that frequently service performance gasoline engines.

The steel construction provides a strong foundation for the ring, while the precise dimensions ensure a proper fit within the piston groove and cylinder bore. The .043 inch thickness is common for performance gas applications, balancing sealing ability with reduced drag. This pack of 48 rings is a practical option for engine builders looking for reliable components for multiple projects or for a specific high-volume build. Ensure compatibility with your specific piston and cylinder bore dimensions before installation.