What is the benefit of a Moly coating on piston rings?

A Moly coating on the top compression ring helps to reduce friction between the ring and the cylinder wall. This can lead to improved engine efficiency and longer ring life.

What does 'low tension' mean for piston rings?

Low tension rings exert less pressure against the cylinder wall. This can reduce parasitic drag on the engine, potentially improving power output and fuel economy.

Are these rings suitable for a stock rebuild?

These Pro Series rings are designed for performance builds, but their low tension and Moly coating can also offer benefits in a stock rebuild by improving efficiency and durability.

Mahle Pro Series Piston Rings Moly Ring Set 3150059.065

Name: Mahle Rings Pro Series Performance Rings Low Tension 4.000 Bore Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-pro-series-performance-rings-low-tension-4-000-bore-moly-ri-t14-47522
Price: 203.48 USD
Availability: BackOrder

Mahle Rings Pro Series Performance Rings Low Tension 4.000 Bore Moly Ring Set

$203.48

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle Pro Series low tension moly ring set for 4.000 bore engines. Built for improved performance.

Key Features

Fits engines with a 4.000 inch bore.
Features low tension design for reduced cylinder wall drag.
Top compression ring is coated with Moly for improved friction reduction and wear resistance.
Mahle OE brand is known for dependable engine components.
Designed for performance-oriented engine builds.

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Product Details

This set includes Mahle's Pro Series low tension moly piston rings, designed for a 4.000 inch bore. These rings are a well-built option for engine builds where improved performance is a goal. The moly coating on the top ring helps reduce friction and wear, which can lead to better sealing and longer ring life.

Mahle has a solid reputation for making dependable engine components. These Pro Series rings are constructed with low tension, which can help reduce cylinder wall drag and improve overall engine efficiency. This makes them a popular choice for performance-oriented engine rebuilds where every bit of power and efficiency counts. The moly coating is applied to the top compression ring, offering a notable benefit in durability and initial seating.

When rebuilding an engine, ensuring proper ring seal is critical for compression and oil control. These rings are designed to work with standard 4.000 inch bore pistons. Always refer to your engine's specific service manual for detailed installation procedures and break-in recommendations.