What does 'Moly' mean in the context of piston rings?

Moly refers to Molybdenum, a material often used as a coating on the piston ring's face. This coating helps to reduce friction between the ring and the cylinder wall, which can improve engine efficiency and extend the life of both the rings and the cylinder bore.

What does the '.040' in the part number signify?

The '.040' indicates that this is an undersize piston ring set. It means the rings are 0.040 inches smaller in diameter than standard size. This is typically used when cylinder walls have been bored out to a larger size during an engine rebuild.

Are these rings suitable for all 3.5L Duratec engines?

This specific ring set is designed for the 3.5L Duratec DOHC V6 engine found in many Ford, Lincoln, and Mercury vehicles. It's important to verify the exact engine code and vehicle fitment to ensure compatibility with your application.

Mahle OE Piston Rings 42081CP.040 - Ford 3.5L Duratec

Name: Mahle Rings Ford 3.5L Duratec D35 DOHC V6 2006 - Up Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-ford-3-5l-duratec-d35-dohc-v6-2006-up-moly-ring-set-t14-49806
Price: 157.88 USD
Availability: BackOrder

Mahle Rings Ford 3.5L Duratec D35 DOHC V6 2006 - Up Moly Ring Set

$157.88

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 Moly Piston Ring Set for Ford 3.5L Duratec engines. Fits 2007-2019+ Ford, Lincoln, and Mercury vehicles.

Key Features

Fits 2007-2019+ Ford, Lincoln, and Mercury vehicles with the 3.5L Duratec DOHC V6 engine.
Mahle OE Moly Piston Ring Set.
Designed to reduce friction and minimize engine oil consumption.
Built for a longer service life.
This is a 0.040 inch undersize ring set.

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Will this fit your vehicle?

Product Details

If you're rebuilding the engine in your Ford, Lincoln, or Mercury vehicle with a 3.5L Duratec DOHC V6, a fresh set of piston rings is a critical part of the job. These Mahle OE Moly Piston Rings are designed to meet the demands of modern engines, focusing on reducing friction and minimizing oil consumption for a longer service life. They are a well-built replacement for your original rings.

Mahle has a reputation for advanced piston ring technology, and this set is no exception. They've worked to reduce both friction and the mass of the rings themselves, which contributes to better overall engine efficiency and performance. This attention to detail helps ensure your engine runs smoothly and reliably after the rebuild. The set is specifically sized at 0.040 inches undersize, which is important to note for your machine shop and assembly process.

This set is designed to fit a wide range of vehicles, including popular models like the Ford Explorer, Ford F-150, and Lincoln MKT. Make sure to check the full fitment list to confirm compatibility with your specific year and model. When you're putting an engine back together, using well-made components like these Mahle rings can make a significant difference in the final result.