What is the advantage of a reduced tension piston ring design?

Reduced tension piston rings are designed to apply less pressure against the cylinder walls. This can lead to less friction, potentially improving fuel economy and allowing the engine to rev more freely. They are also often designed to help with oil control.

What does 'plasma moly' mean for the top ring?

Plasma moly refers to a coating applied to the top ring using a plasma spray process. This coating is known for its hardness and durability, which helps the ring resist wear and seat properly against the cylinder wall for a good seal.

Are these rings compatible with all piston types?

These rings are designed to fit into the grooves of pistons for a 4.135 inch bore. It's important to ensure your pistons are designed to accept these specific ring dimensions and types for proper installation and function.

Mahle Piston Ring Set 3150179.015 - Reduced Tension

Name: Mahle Rings 4.135in Bore .043in1.5MM3.00MM Plasma Moly Ductile Low Tension Reduced Rad Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-135in-bore-043in1-5mm3-00mm-plasma-moly-ductile-low-tensi-t14-51582
Price: 192.69 USD
Availability: BackOrder

Mahle Rings 4.135in Bore .043in1.5MM3.00MM Plasma Moly Ductile Low Tension Reduced Rad Moly Ring Set

$192.69

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 Ring Set 3150179.015. Features plasma moly ductile iron rings for 4.135in bore. Reduced tension design. Not CARB approved.

Key Features

Fits 4.135 inch bore engines.
Features a .043 inch top ring, 1.5mm second ring, and 3.00mm oil ring.
Plasma moly ductile iron construction for durability.
Low tension design helps reduce friction and improve oil control.
Well-built for engine rebuilding applications.
Not CARB approved; cannot ship to California.

This piston ring set is designed for a 4.135 inch bore. Please consult your vehicle's service manual or a qualified mechanic to confirm compatibility with your specific engine.

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Product Details

If you're rebuilding the engine in your vehicle and need to replace the piston rings, this Mahle OE set is a solid option. These rings are designed for a 4.135-inch bore and feature a reduced tension design, which can help improve oil control and reduce friction. The plasma moly ductile iron construction means they are well-built for the demands of an engine rebuild.

This particular set uses a .043 inch top ring, a 1.5 millimeter second ring, and a 3.00 millimeter oil ring. The plasma moly coating on the top ring is known for its durability and ability to seat well against the cylinder wall. The ductile iron material in the rings offers good strength and resilience, while the low tension design aims to minimize drag on the cylinder walls, potentially leading to improved performance and efficiency. These are designed to fit right into your existing piston grooves.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to your vehicle's service manual for specific installation procedures and torque specifications when rebuilding your engine.