What is the purpose of the plasma-moly coating?

The plasma-moly coating on these top rings is applied using HVOF technology. This advanced coating is known for its exceptional durability and low friction, which helps to reduce wear on both the ring itself and the cylinder bore over time.

What does the 48-piece bulk pack signify?

This bulk pack contains 48 rings, making it a cost-effective and convenient option for engine builders who are working on multiple engines or specialized projects. It ensures you have enough high-quality rings on hand for several rebuilds.

Are these rings suitable for all engine types?

These rings are designed for performance applications and fit a 4.270-inch bore. While Mahle is a well-known OE supplier, this specific plasma-moly coated set is geared towards builds where enhanced sealing and durability are priorities. Always confirm compatibility with your specific engine build requirements.

Mahle OE Piston Rings 3011087B - Performance Plasma Steel

Name: Mahle Rings Perf Plasma Steel Top Ring 4.270in 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-4-270in-x-1-0mm-143in-rw-hvof-mo-t14-47853
Price: 923.72 USD
Availability: BackOrder

Mahle Rings Perf Plasma Steel Top Ring 4.270in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

$923.72

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 ring set. 4.270in bore, 1.0mm thickness. Bulk pack of 48 rings.

Key Features

Fits a 4.270 inch bore size.
Top ring thickness is 1.0mm.
Features a plasma-moly coating applied with HVOF technology for durability and low friction.
Bulk pack contains 48 rings, suitable for multiple engine builds.
Designed for performance applications where a strong seal is critical.
Mahle OE is a trusted brand known for supplying engine components to manufacturers.

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Product Details

Mahle is a well-known name in engine components, often supplying parts directly to manufacturers. This bulk pack of performance plasma steel top rings is designed for engine builders who need a large quantity of high-quality rings for multiple builds or specialized projects. These rings are built to handle demanding conditions, ensuring a solid seal between the piston and cylinder wall for optimal compression and oil control.

The top ring features a plasma-moly coating applied using High Velocity Oxygen Fuel (HVOF) technology. This advanced coating is known for its durability and low friction, which helps reduce wear on both the ring and the cylinder bore. The 1.0mm thickness is a common performance dimension, offering a good balance of sealing ability and piston crown land height. This set includes 48 rings, making it a practical choice for shops or individuals undertaking multiple engine rebuilds. The 4.270-inch bore size indicates these are intended for larger displacement or performance-oriented engines.

When rebuilding an engine, the piston rings are critical for performance and longevity. They are responsible for sealing the combustion chamber, transferring heat from the piston to the cylinder wall, and controlling oil consumption. This Mahle set is a well-built option for those looking for reliable components for their engine builds. Please note that these rings are not CARB approved and cannot be shipped to California.