What is the purpose of the plasma moly coating on the top ring?

The plasma moly coating on the top ring is a hard material applied to help the ring resist wear and abrasion. This helps maintain a consistent seal against the cylinder wall over time, which is important for engine performance and longevity.

What does 'standard tension' mean for these piston rings?

Standard tension means the rings apply a typical amount of pressure against the cylinder walls. This ensures a good seal for compression and helps control oil consumption without putting excessive wear on the cylinder walls or pistons.

Are these rings compatible with all engine types?

These rings are specifically designed for engines with a 4.125 inch bore. While they are a common size for many V8 engines, you should always verify your engine's bore size and consult your vehicle's service manual to ensure proper fitment and application.

Mahle Piston Ring Set 3150143.005 - 4.125in Bore

Name: Mahle Rings 4.125in Bore 1/16in 3.00MM Plasma Moly Ductile Std Tension Engine Set Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-125in-bore-1-16in-3-00mm-plasma-moly-ductile-std-tension--t14-51654
Price: 173.88 USD
Availability: BackOrder

Mahle Rings 4.125in Bore 1/16in 3.00MM Plasma Moly Ductile Std Tension Engine Set Moly Ring Set

$173.88

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 ring set with a 4.125in bore and plasma moly ductile iron construction. Ensures a solid seal for your engine.

Key Features

Fits engines with a 4.125 inch bore.
Top ring width is 1/16 inch.
Oil ring width is 3.00 millimeters.
Features a plasma moly coating on the top ring for improved wear resistance.
Constructed from ductile iron for strength and durability.
Standard tension applies consistent pressure to cylinder walls.

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Product Details

These Mahle piston rings feature a plasma moly coating on the top ring, a tough material choice that helps them resist wear and maintain a good seal against the cylinder wall. The top ring is 1/16 inch wide, and the oil ring is a 3.00 millimeter design, both standard sizes that work well in many engine rebuilds. They are made from ductile iron, which offers good strength and durability for everyday driving conditions.

This set is designed for a 4.125 inch bore, a common size for many V8 engines. The standard tension means they apply consistent pressure against the cylinder walls, which is crucial for proper compression and oil control. Mahle is a well-known name in engine components, and these rings are a solid option when you're rebuilding your engine and need reliable parts to get it running right.

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.