What is the benefit of the plasma-moly coating on the top ring?

The plasma-moly coating on the top ring helps to reduce friction between the ring and the cylinder wall. It also improves wear resistance, which can lead to a longer lifespan for the ring and the engine, especially under demanding conditions.

What does '48 Qty Bulk Pack' mean?

This means the product contains 48 individual sets of piston rings. This is typically purchased by engine builders or repair shops that work on multiple engines or large projects.

Can these rings be shipped to California?

No, these rings are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle OE Piston Ring Set 3010966B

Name: Mahle Rings Perf Plasma Moly Steel Top Ring 4.000in x 5/64in .146in RW Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-plasma-moly-steel-top-ring-4-000in-x-5-64in-146in-rw-r-t14-47990
Price: 449.86 USD
Availability: BackOrder

Mahle Rings Perf Plasma Moly Steel Top Ring 4.000in x 5/64in .146in RW Ring Set (48 Qty Bulk Pack)

$449.86

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 Plasma Moly Steel Top Ring Set, 4.000in bore. This bulk pack includes 48 ring sets for engine builds.

Key Features

This bulk pack contains 48 sets of Mahle OE Plasma Moly Steel Top Rings.
Each ring set is designed for a 4.000-inch cylinder bore.
The top ring features a plasma-moly coating for improved wear resistance and reduced friction.
Top ring thickness is 5/64 inch, and the ring groove depth is .146 inch.
Constructed from durable steel for strength and resilience.
Mahle OE is a popular brand known for engine components.

This is a bulk pack of 48 ring sets designed for a 4.000-inch bore. Please verify compatibility with your specific engine and piston application.

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Product Details

This bulk pack gives you 48 sets of Mahle OE Plasma Moly Steel Top Rings, each designed for a 4.000-inch bore. These rings are built with a plasma-moly coating on the top ring, a common upgrade for improved durability and reduced friction in performance applications. The specific dimensions are 5/64 inch for the top ring thickness and .146 inch for the ring groove depth, ensuring a precise fit in compatible pistons.

Mahle is a well-known name in engine components, and this set reflects their commitment to well-built parts. The plasma-moly coating is applied to the top ring surface, which is critical for sealing combustion pressure and managing heat. This coating helps the ring seat properly against the cylinder wall, reducing wear and maintaining compression over time, especially in engines that see frequent use or higher performance demands. The steel construction offers good strength and resilience.

This is a bulk pack, so it's ideal for shops or builders working on multiple engines or a large project. Remember that these rings are not CARB approved and cannot be shipped to California.