What are the specific dimensions of these piston rings?

This Mahle OE piston ring set includes 1.5mm rings for the top two grooves and a 3.0mm ring for the oil control groove. They are designed for a 4.135-inch bore.

What is the benefit of the plasma moly coating?

The plasma-moly coating on the compression rings helps to reduce friction and wear. This coating aids in quick ring seating and maintaining a good seal against the cylinder walls, which is important for engine performance and oil control.

Are these rings suitable for all engine builds?

These rings are a solid option for engine rebuilds requiring a 4.135-inch bore and standard tension oil rings. However, they are not CARB approved and cannot be shipped to California.

Mahle OE Piston Rings 3150200.015 - Engine Components

Name: Mahle Rings Ductile Plasma Moly Engine Set 1.5 1.5 3.0MM Std Tension Oil Ring 4.135in Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-ductile-plasma-moly-engine-set-1-5-1-5-3-0mm-std-tension-oi-t14-49968
Price: 210.88 USD
Availability: BackOrder

Mahle Rings Ductile Plasma Moly Engine Set 1.5 1.5 3.0MM Std Tension Oil Ring 4.135in Moly Ring Set

$210.88

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 Piston Rings 3150200.015. Ductile plasma moly set with 1.5mm, 1.5mm, and 3.0mm rings for standard tension oil rings.

Key Features

This product is a Mahle OE Piston Rings set.
The set includes ductile plasma moly rings.
It features 1.5mm top and second compression rings.
A 3.0mm oil ring is included for oil control.
These are standard tension rings.
The rings are designed for a 4.135-inch bore size.

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Product Details

This set includes ductile plasma moly piston rings from Mahle OE, designed for engine rebuilding. You get a complete set of rings with specific dimensions: 1.5mm for the top two ring grooves and a 3.0mm ring for the oil control groove. These are standard tension rings, meaning they apply typical pressure against the cylinder wall for a good seal.

Mahle OE uses a ductile iron base for these rings, which offers good strength and flexibility. The plasma-moly coating on the top and second compression rings is a well-known method for reducing friction and wear, especially important in high-heat engine environments. This coating helps the rings seat quickly and maintain a solid seal against the cylinder walls, which is crucial for proper compression and oil control. The 4.135-inch bore size indicates these are intended for a specific range of engine displacements where this bore diameter is common.

When you're rebuilding an engine, getting the right piston rings is key to its performance and longevity. This Mahle OE set is a solid option for many engine builds where a reliable, well-made ring set is needed to ensure proper cylinder sealing and oil management.