Mahle OE Moly Ring Set

2009–2017 Chrysler Dodge Ram Jeep 5.7L Hemi / 3.6L V6

Part #: 42108CP

Overview

The Mahle OE Moly Ring Set is engineered to meet or exceed original equipment specifications for Chrysler, Dodge, Ram, and Jeep vehicles equipped with 5.7L Hemi and 3.6L V6 engines from 2009 through 2017. Designed for professional mechanics and automotive enthusiasts alike, these piston rings deliver superior sealing performance, reduced friction, and enhanced durability. Whether you are rebuilding an engine or performing maintenance, Mahle’s advanced piston ring technology ensures optimal engine efficiency and longevity.

Mahle OE piston rings are recognized industry-wide for their precision engineering and commitment to quality. This molybdenum-coated ring set minimizes oil consumption and wear, helping maintain compression and improve overall engine performance under demanding conditions.

Key Features

Mahle OE Moly Ring Sets incorporate the latest advancements in piston ring technology, offering a range of benefits tailored to modern engines:

• OE-driven design ensures exact fit and compatibility with specified Chrysler, Dodge, Ram, and Jeep engines
• Molybdenum coating reduces friction and ring mass for improved efficiency
• Enhanced oil control minimizes engine oil consumption and emissions
• Superior wear resistance extends service life and maintains compression
• Precision manufacturing guarantees consistent ring tension and sealing
• Compatible with a wide range of engines including 5.7L Hemi, 3.6L V6, 6.4L SRT8, 6.2L Hellcat, and 6.7L Diesel variants
• Ideal for both gasoline and diesel applications within the specified fitment
• Supports high-performance and heavy-duty engine demands

Construction & Design

Mahle OE piston rings feature a robust construction with a molybdenum coating applied to the ring face. This coating significantly reduces friction between the piston ring and cylinder wall, which helps to lower wear and improve fuel efficiency. The rings are precision-machined from high-grade materials to maintain optimal tension and sealing properties throughout the engine’s operating life.

The design focuses on balancing durability with reduced mass, which contributes to smoother engine operation and less mechanical resistance. This advanced engineering supports both standard and high-performance engine builds, ensuring reliable performance across a variety of driving conditions.

Installation & Fitment

The Mahle OE Moly Ring Set is designed for direct replacement in compatible engines, requiring no modifications for proper installation. Professional installation is recommended to ensure correct ring gap and seating, which are critical for achieving maximum performance and longevity. This ring set fits a broad range of vehicles including:

• 2009–2017 Dodge Ram 1500, 2500, 3500 with 5.7L Hemi and 3.6L V6 engines
• 2009–2017 Jeep Grand Cherokee with 5.7L Hemi, 3.6L V6, 6.4L SRT8, and 3.0L EcoDiesel engines
• 2011–2017 Chrysler 300 with 5.7L Hemi and 3.6L V6 engines
• 2009–2017 Dodge Challenger and Charger with 5.7L Hemi, 6.4L 392, 6.2L Hellcat, and 3.6L V6 engines
• 2009–2017 Ram 2500 and 3500 with 6.7L Diesel and 6.4L 392 engines
• Additional fitment includes Jeep Commander, Dodge Durango, and other models within the specified years and engines

Always verify engine compatibility before installation to ensure optimal fit and performance.

What's Included

• Complete set of molybdenum-coated piston rings tailored for specified engine applications
• Compression rings and oil control rings engineered for balanced sealing and oil management
• Packaging with part number 42108CP for easy identification

Ideal For

This Mahle OE Moly Ring Set is ideal for automotive professionals, engine rebuilders, and performance enthusiasts seeking reliable, OE-quality piston rings for Chrysler, Dodge, Ram, and Jeep engines. It is especially suited for those performing engine overhauls, repairs, or upgrades on 5.7L Hemi and 3.6L V6 powerplants, as well as high-performance variants such as the 6.4L SRT8 and 6.2L Hellcat engines. The set supports both daily driving and demanding performance applications, providing durable sealing and efficient oil control.

MAHLE Aftermarket supplies a broad range of OE-quality engine and service components—engine parts, filters, gaskets, and thermal management—supporting everything from stock maintenance to performance-minded rebuilds. It’s a trusted source when builders want reputable engineering and consistent quality for refreshes, reliability upgrades, and daily-driven performance projects.