What is the primary application for these Mahle oil rings?

These Mahle oil rings are specifically designed for NHRA Pro Stock racing applications. Their construction and dimensions are optimized for the high-stress, high-RPM conditions found in professional drag racing engines.

What does the 'GNS' designation mean for these rings?

GNS stands for Gas Nitrided Steel. This treatment process hardens the surface of the steel, making the rings more resistant to wear and improving their overall durability, which is critical for racing engines.

Can these rings be used in a street-driven vehicle?

While these rings are exceptionally well-built and durable, they are specifically engineered for the extreme demands of Pro Stock racing. For standard street applications, Mahle offers other ring sets optimized for different performance and longevity characteristics.

Mahle NHRA Pro Stock Oil Ring Set 3030847B

Name: Mahle Rings Perf Oil Ring 4.700in x 2.0MM .129in RW GNS NHRA Pro Stock Plain Ring Set (48 Qty Bulk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-oil-ring-4-700in-x-2-0mm-129in-rw-gns-nhra-pro-stock-p-t14-48120
Price: 401.83 USD
Availability: BackOrder

Mahle Rings Perf Oil Ring 4.700in x 2.0MM .129in RW GNS NHRA Pro Stock Plain Ring Set (48 Qty Bulk)

$401.83

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle NHRA Pro Stock oil ring set, 4.700in x 2.0MM x .129in. Bulk 48 qty. Not CARB approved.

Key Features

Fits a 4.700-inch bore size.
Features a 2.0mm oil ring width and a .129-inch groove width.
Constructed from Gas Nitrided Steel (GNS) for improved durability and wear resistance.
Designed for NHRA Pro Stock racing applications.
Bulk pack contains 48 individual ring sets.
Not CARB approved; cannot ship to California.

This is a bulk pack of 48 oil ring sets designed for high-performance racing applications. Check manufacturer specifications for compatibility with your specific engine build.

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Product Details

These Mahle NHRA Pro Stock oil ring sets feature a 4.700-inch bore size with a 2.0mm oil ring width and a .129-inch groove width. Designed for high-performance racing applications, these rings are built to handle the demanding conditions of Pro Stock competition. The GNS (Gas Nitrided Steel) construction offers improved durability and wear resistance, crucial for maintaining engine integrity under extreme stress. This bulk pack includes 48 sets, making it a practical choice for engine builders or race teams working on multiple engines.

The specific design of these oil rings is optimized for efficient oil control in high-RPM, high-horsepower engines. The nitrided surface treatment on the steel provides a harder, more wear-resistant finish compared to standard rings, which helps extend their service life and maintain consistent sealing performance. This attention to material and finish is what you'd expect from a brand like Mahle, known for its commitment to engine component quality. While these are designed for racing, the robust construction means they are well-built for any application where superior oil control and durability are paramount.

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