What does the '.030' in the part number mean?

The '.030' indicates that these piston rings are 0.030 inches undersize compared to a standard bore size. This is common when rebuilding an engine, as the cylinder walls are often honed to a specific clearance, and these rings are designed to match that honed size for a proper seal.

What is the benefit of moly coating on piston rings?

Moly (molybdenum) coating on piston rings helps to reduce friction between the ring and the cylinder wall. This can lead to improved oil control, reduced wear, and a smoother break-in process, helping the rings seat effectively.

Are these rings compatible with all 5.7L Hemi engines?

This Mahle ring set is designed for 5.7L Hemi engines in Chrysler, Dodge, Jeep, and Ram vehicles from 2009 and up. It's important to verify the specific year, make, model, and engine configuration against the provided fitment list to ensure compatibility with your vehicle.

Mahle Piston Rings Moly Ring Set 42108CP.030

Name: Mahle Rings Chrysler / Dodge Trk 5.7L Hemi Eagle Eng 2009 - Up Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-chrysler-dodge-trk-5-7l-hemi-eagle-eng-2009-up-moly-ring-se-t14-50294
Price: 171.35 USD
Availability: BackOrder

Mahle Rings Chrysler / Dodge Trk 5.7L Hemi Eagle Eng 2009 - Up Moly Ring Set

$171.35

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 Ring Set for 5.7L Hemi engines. Features a 0.030 inch undersize for a precise fit during engine rebuilds.

Key Features

Fits 2009 and up Chrysler, Dodge, Jeep, and Ram vehicles with a 5.7L Hemi engine.
This is a 0.030 inch undersize piston ring set, intended for use with pistons honed to a specific clearance.
Features moly coatings, known for reducing friction and improving wear resistance.
Designed to minimize engine oil consumption and extend service life.
Mahle OE rings are built to meet the demands of modern engine technology.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

When you're rebuilding the top end of your 5.7L Hemi, you'll want a set of piston rings that are built to last. This Mahle OE Moly Ring Set, part number 42108CP.030, is designed for Chrysler, Dodge, Jeep, and Ram trucks and SUVs from 2009 and up. These rings are a 0.030 inch undersize, which is crucial for ensuring a proper seal and optimal performance when you're working with pistons that have been honed to a specific clearance.

Mahle is known for making technically advanced piston rings. They focus on reducing friction and ring mass, which helps minimize oil consumption and can lead to a longer service life for your engine. This set uses moly coatings, which are well-regarded for their ability to reduce wear and improve the break-in process, helping the rings seat properly against the cylinder walls for a solid seal.

This ring set is a solid option for many 5.7L Hemi applications, including popular models like the Dodge Charger, Ram 1500, and Jeep Grand Cherokee. Make sure to check the fitment details to confirm it's the right choice for your specific vehicle.