What is included in this bulk ring set?

This bulk set includes 48 individual piston rings. They are designed for a 4.005-inch bore diameter and feature a 1.5mm top ring and a .151-inch second ring.

What makes plasma moly steel a good material for piston rings?

Plasma moly steel is a strong and well-built material that offers excellent resistance to wear and scuffing. This durability is important for maintaining a proper seal and ensuring the longevity of the rings within the engine's cylinders.

Are these piston rings compatible with all engines?

These rings are specifically designed for a 4.005-inch bore diameter. They are also not CARB approved, meaning they cannot be shipped to California. Always confirm fitment with your engine's specifications before installation.

Mahle OE Piston Rings 3010972B - 4.005in Bore

Name: Mahle Rings Plasma Moly Steel 1.5MM x .151 RW 4.005in Bore Diameter. Bulk Ring Set (48 Qty Bulk Pk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-plasma-moly-steel-1-5mm-x-151-rw-4-005in-bore-diameter-bulk-t14-47634
Price: 637.00 USD
Availability: BackOrder

Mahle Rings Plasma Moly Steel 1.5MM x .151 RW 4.005in Bore Diameter. Bulk Ring Set (48 Qty Bulk Pk)

$637.00

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 Piston Rings. Bulk set of 48 rings for 4.005in bore engines.

Key Features

This product is a bulk ring set containing 48 piston rings.
Each ring is constructed from plasma moly steel for improved durability and wear resistance.
The rings are designed for a 4.005-inch bore diameter.
The top ring measures 1.5mm in height.
The second ring measures .151 inches in radial width.
Mahle OE is a well-known brand for engine components.

This is a bulk set of piston rings designed for a 4.005-inch bore. Please verify compatibility with your specific engine build before purchase. Not CARB approved.

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Product Details

This bulk set gives you 48 Mahle OE Plasma Moly Steel piston rings, each designed for a 4.005-inch bore. You're getting a substantial quantity, making this a practical choice for engine builders who work on multiple vehicles or need spares on hand. These rings are built with plasma moly steel, a strong material known for its durability and resistance to wear, which is crucial for the demanding environment inside an engine cylinder.

The specific ring dimensions here are 1.5mm for the top ring and .151 inches for the second ring, with a standard radial width. This configuration is common in many performance and heavy-duty applications where a robust seal is needed to maintain compression and control oil. Mahle has a long-standing reputation for producing well-built engine components, and these rings are no exception. They are designed to create a tight seal against the cylinder wall, helping to prevent combustion gases from escaping past the piston and ensuring that oil stays in its proper place. This attention to sealing is key to an engine's overall performance and longevity.

Because this is a bulk pack, it's ideal for shops or individuals tackling several engine rebuilds. You'll want to confirm that these rings are suitable for your specific engine build, as they are not CARB approved and cannot be shipped to California. Always refer to your engine's service manual for precise installation procedures and specifications to ensure a proper fit and optimal performance.