What is the advantage of a nitride coating on piston rings?

A nitride coating hardens the surface of the steel piston rings. This improves their wear resistance and durability, especially under the high temperatures and pressures found in performance gas engines. It helps ensure a consistent seal over time.

What does 'bulk pack' mean for these piston rings?

This product is a bulk pack containing 48 individual piston ring sets. This quantity is ideal for engine builders, machine shops, or individuals working on multiple engines or a large project where many sets of rings are needed.

Are these rings compatible with all engine types?

These rings are specifically designed for performance gas engines and are sized for a 4.085 inch bore. While they are a high-performance component, compatibility depends on the specific engine build, including piston design and cylinder wall specifications. Always consult your engine build plan or manufacturer data.

Mahle OE Piston Rings 3011178B - Performance Gas Nitride Ste

Name: Mahle Rings Perf Gas Nitride Steel 4.085 x .043 .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-gas-nitride-steel-4-085-x-043-157-rw-bulk-plain-ring-s-t14-48624
Price: 514.83 USD
Availability: BackOrder

Mahle Rings Perf Gas Nitride Steel 4.085 x .043 .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)

$514.83

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 4.085 inch bore size.
Top and second rings are .043 inches thick.
Oil control rings are .157 inches thick.
Constructed from steel with a nitride coating for improved wear resistance.
Bulk pack contains 48 rings, suitable for multiple engine builds.
Designed for performance gas engine applications.

This is a bulk pack of 48 piston rings designed for a 4.085 inch bore. Specific vehicle fitment should be confirmed with manufacturer data for your engine build.

Secure CheckoutFast Shipping631-982-0042

Product Details

Mahle is a well-known name in the automotive industry, particularly for their expertise in engine components. This bulk pack of performance gas piston rings, part number 3011178B, is designed for engine builders who need a large quantity of reliable rings for multiple builds or a large project. These rings are constructed from steel and feature a nitride coating, which is a surface treatment that hardens the ring and improves its wear resistance, especially important in high-performance gas applications.

The rings measure 4.085 inches in bore size with a thickness of .043 inches for the top and second rings, and .157 inches for the oil control ring. The nitride finish helps them withstand the heat and stress of combustion, ensuring a good seal between the piston and cylinder wall. This is crucial for maintaining compression, controlling oil consumption, and achieving optimal engine performance. Because these are sold in a bulk pack of 48, they are ideal for shops or serious DIYers working on multiple engines or a large-scale rebuild.

Please note that these rings are not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and compatibility with your specific engine build.