What is the coating on these top rings and why is it important?

These top rings feature a plasma-moly coating applied using HVOF technology. This advanced coating creates a very dense and durable layer that significantly resists wear and reduces friction, which is essential for maintaining optimal engine performance and longevity under demanding conditions.

What does the '48 Qty Bulk Pk' mean?

This means the product is sold as a large quantity package containing 48 individual piston rings. This is ideal for engine builders, machine shops, or anyone working on multiple engine projects simultaneously.

Are these rings suitable for all engine builds?

These are performance-oriented steel top rings with a plasma-moly coating, designed for demanding applications. While they offer robust performance, always verify that the specific dimensions (4.170in x 1.0MM x .143in) and material are compatible with your engine's pistons and intended use. They are not CARB approved and cannot be shipped to California.

Mahle OE Piston Rings 3011075B

Name: Mahle Rings Perf Plasma Steel Top Ring 4.170in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-plasma-steel-top-ring-4-170in-x-1-0mm-143in-rw-hvof-mo-t14-47873
Price: 814.26 USD
Availability: BackOrder

Mahle Rings Perf Plasma Steel Top Ring 4.170in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

$814.26

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 plasma steel top piston rings. 48-piece bulk pack.

Key Features

This is a 48-piece bulk pack of Mahle OE performance piston rings.
The top ring is constructed from steel for strength and durability.
Features a plasma-moly coating applied via HVOF technology for improved wear resistance and reduced friction.
Designed for performance engine applications requiring a reliable seal.
Top ring dimensions are 4.170 inches bore size, 1.0mm thickness, and 0.143-inch groove width.
Not CARB approved and cannot be shipped to California.

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Product Details

Mahle is a well-known name in the automotive industry, particularly for their OE (Original Equipment) quality engine components. This bulk pack of performance plasma steel top rings is designed for builders and shops who need a substantial quantity of high-performance parts for multiple engine builds or extensive overhauls. These rings are built to handle the demands of performance applications, ensuring a solid seal between the piston and cylinder wall.

The top ring in this set features a plasma-moly coating applied using HVOF (High Velocity Oxygen Fuel) technology. This advanced coating process creates a very dense and durable layer that resists wear and reduces friction, which is crucial for maintaining compression and preventing blow-by under high stress. The ring itself is made from steel, offering a strong and resilient option compared to cast iron alternatives. The specific dimensions are 4.170 inches in bore size, with a 1.0mm thickness and a 0.143-inch ring groove width, designed for precise fitment in compatible pistons.

This is a bulk pack containing 48 rings, making it a practical choice for engine builders working on multiple projects or high-volume shops. Please note that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for proper installation procedures and compatibility details.