What is the purpose of the plasma moly coating on these rings?

The plasma moly coating on these steel rings is applied to enhance wear resistance and reduce friction. This helps to extend the lifespan of both the piston rings and the cylinder walls, especially under demanding operating conditions.

What does the 'RW' designation mean in the product name?

The 'RW' designation typically refers to the ring type and orientation. In this case, it indicates a specific type of top compression ring designed for proper installation and sealing within the piston groove.

Are these rings suitable for all engine types?

These rings are designed for specific bore sizes (4.605 inches) and piston groove dimensions. Compatibility depends on the exact engine specifications and whether these dimensions match your rebuild requirements. Always consult your engine's service manual.

Mahle OE Piston Rings 3011125B - 4.605in Steel

Name: Mahle Rings Plasma Moly Steel Top Comp Ring 4.605in x .0625in .190in RW Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-plasma-moly-steel-top-comp-ring-4-605in-x-0625in-190in-rw-r-t14-47557
Price: 838.27 USD
Availability: BackOrder

Mahle Rings Plasma Moly Steel Top Comp Ring 4.605in x .0625in .190in RW Ring Set (48 Qty Bulk Pack)

$838.27

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 Compression Rings. 4.605in bore size, 0.0625in thickness. Bulk pack of 48 rings.

Key Features

Fits engines requiring a 4.605-inch bore diameter.
Top compression ring with a 0.0625-inch thickness and 0.190-inch depth.
Constructed from durable steel for strength and reliability.
Features a plasma moly coating for improved wear resistance and reduced friction.
Designed to create a solid seal against the cylinder wall for optimal compression.
Bulk pack includes 48 rings, suitable for multiple engine builds or large projects.

Secure CheckoutFast Shipping631-982-0042

Product Details

This is a bulk pack of 48 Mahle OE Plasma Moly Steel Top Compression Rings, designed for engine rebuilding. These rings are built to precise specifications, measuring 4.605 inches in bore diameter with a 0.0625-inch thickness and a 0.190-inch ring depth. The plasma moly coating on these steel rings is a key feature, offering improved wear resistance and a solid seal against the cylinder wall, which is crucial for maintaining compression and preventing oil blow-by.

Mahle is a well-known name in engine components, and these rings reflect that reputation for well-built parts. The steel construction provides strength, while the plasma moly surface treatment is applied to reduce friction and extend the life of both the rings and the cylinder walls. This is particularly important in high-performance or heavy-duty applications where engines are subjected to significant stress. The 48-quantity bulk pack is ideal for shops or builders working on multiple engines or those who need a significant quantity for a large project.

When rebuilding an engine, the piston rings are a critical component for sealing the combustion chamber. Ensuring you have the correct size and type of ring is essential for proper engine function and longevity. These Mahle rings are designed for a direct fit in applications requiring these specific dimensions. Always refer to your engine's service manual for correct installation procedures and any associated hardware or sealants that may be needed.