What is the purpose of the nitride treatment on these piston rings?

The nitride treatment is a surface hardening process applied to the steel. This significantly improves the rings' durability and resistance to scuffing, which is crucial for maintaining a good seal against the cylinder wall over time, especially in high-performance engines.

What does the '4.115in x .043in .157 RW' specification mean?

This refers to the critical dimensions of the piston rings. '4.115in' is the bore diameter the ring is designed for. '.043in' is the ring thickness, and '.157in' is the ring width, which fits into the piston groove.

Is this product compatible with all gasoline engines?

These rings are specifically designed for performance gasoline engines with a 4.115-inch bore. It is essential to verify that this bore size matches your engine's specifications before purchasing. They are not CARB approved and cannot be shipped to California.

Mahle Performance Piston Rings 4.115in Steel 3011184B

Name: Mahle Rings Perf Gas Nitride Steel 4.115in x .043in .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-gas-nitride-steel-4-115in-x-043in-157-rw-bulk-plain-ri-t14-48611
Price: 514.12 USD
Availability: BackOrder

Mahle Rings Perf Gas Nitride Steel 4.115in x .043in .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)

$514.12

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 Piston Rings. Steel, nitride, 4.115in bore. Bulk pack of 48.

Key Features

Fits engines with a 4.115 inch bore.
Constructed from nitride steel for improved durability and wear resistance.
Rings measure 0.043 inches in thickness and 0.157 inches in width.
Bulk pack includes 48 sets of piston rings.
Designed for performance gasoline engines.

Secure CheckoutFast Shipping631-982-0042

Product Details

These Mahle piston rings are made from nitride steel, a material chosen for its strength and wear resistance, especially under the heat and pressure found in performance gasoline engines. The 4.115-inch bore size and .043-inch ring thickness are specific dimensions critical for proper sealing within the cylinder. This bulk pack contains 48 sets, making it a practical choice for engine builders or shops working on multiple engines with this specific bore size.

The nitride treatment on these rings is a surface hardening process that significantly improves their durability and resistance to scuffing. This is important because piston rings are constantly sliding against the cylinder wall, and this treatment helps them maintain their sealing ability over time, even in demanding applications. The .157-inch ring width is also a key measurement that affects how the ring seats and seals within the piston groove and against the cylinder wall.

When rebuilding an engine, especially one where performance is a priority, the quality of the piston rings is paramount. They are responsible for maintaining compression, 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 demands of performance gasoline engines. This bulk pack is designed for efficiency, providing a large quantity of rings for projects requiring multiple sets.