Fits select 1989-2009 Dodge D250, D350, W250, W350, Ram 2500, Ram 3500, and Ram 3500 Van (3.8L / 5.9L).

These Mahle piston rings are engineered to meet strict OE requirements for Cummins ISB, ISF, and B5.9G engine platforms. Designed to optimize engine sealing, this chrome-faced ring set focuses on reducing friction and ring mass, which directly contributes to minimized oil consumption and a longer service life for the rotating assembly. Whether you are performing a standard refresh or a complete engine overhaul, these 102mm bore rings provide the precise tolerances needed to maintain compression and performance.

• Bore Diameter: 102mm / 4.017in
• Finish: Chrome-faced for durability and wear resistance
• Engine Compatibility: Cummins ISB, ISF 3.8L, and 5.9L / B5.9G
• Designed to reduce internal friction and parasitic loss
• High-grade materials minimize ring mass and oil bypass

Fits select 2011-2017 Ford F-250, F-350, F-450, and F-550 Super Duty (6.7L).

MAHLE Moly piston rings are engineered to meet the demanding original equipment requirements of the 6.7L Powerstroke diesel engine. These rings are designed to reduce internal friction and reciprocating mass, which directly contributes to minimized oil consumption and a longer service life. Built with advanced ring technology, they provide the reliable sealing performance required for high-pressure diesel combustion and heavy-duty towing applications.

• Moly-faced coating for reduced friction and improved wear resistance
• Engineered to minimize engine oil consumption
• Precision-machined to OE specifications for a perfect fit
• Reduced ring mass for improved engine efficiency

Fits select 2007-2017 Dodge, Ram, Ford, Kenworth, and Peterbilt vehicles (6.7L Turbo Diesel).

This Mahle OE piston ring set is engineered for engine rebuilds requiring a .020-inch oversize. Designed to meet or exceed original equipment requirements, these rings are manufactured to minimize friction and ring mass, which directly improves engine efficiency and reduces oil consumption in high-demand diesel applications. The moly-coated top rings provide a durable, heat-resistant seal against the cylinder wall, ensuring a long service life and consistent compression during the combustion cycle.

• Precision-engineered for 6.7L Cummins Turbo Diesel engines
• .020in (0.50mm) oversize for bored cylinder applications
• Moly-coated construction for superior wear resistance and heat management
• Advanced design reduces internal friction and minimizes oil consumption
• Manufactured to strict OE tolerances for reliable seating and sealing

Fits select 2007-2017 Dodge/Ram 2500, 3500, 4500, 5500, Ford F-650, F-750, Kenworth T170, T270, T370, and Peterbilt 330, 335 (6.7L).

Mahle OE piston rings are engineered to the exacting standards required by modern high-output diesel engines. Designed to minimize friction and ring mass, these moly-coated rings effectively reduce engine oil consumption while extending service life. Whether you are performing a standard rebuild or addressing worn factory components, Mahle provides the sealing performance and thermal stability needed to restore the efficiency of the 6.7L Cummins engine.

• Original Equipment (OE) quality and precision fitment
• Standard size ring set for factory bore dimensions
• Moly-faced top rings for enhanced durability and reduced friction
• Engineered to minimize oil consumption and improve service life
• Specifically designed for 6.7L Turbo Diesel applications

Fits select 2008-2010 Ford F-250, F-350, F-450, and F-550 Super Duty (6.4L).

When rebuilding a high-output direct-injection diesel engine like the 6.4L Powerstroke, ring quality is critical for maintaining compression and controlling oil consumption. This Mahle Moly Piston Ring Set is engineered to meet or exceed original equipment requirements, providing a precise fit within the cylinder bore for a reliable seal and long-term durability.

Mahle utilizes advanced materials and specialized coatings to reduce friction and ring mass. These moly-faced rings are designed to withstand the high thermal loads and cylinder pressures inherent in turbo diesel applications while minimizing wear on the cylinder walls. By reducing friction and optimizing oil control, these rings help restore factory-level performance and efficiency to your Ford Super Duty.

• Direct replacement for 6.4L Direct Injection Turbo Diesel engines
• Moly-coated face reduces friction and improves wear resistance for a longer service life
• Reduced ring mass minimizes inertia to maintain a stable seal across the RPM range
• Engineered to minimize engine oil consumption and satisfy OE requirements
• Manufactured to strict tolerances for consistent fitment and sealing performance

Fits select 2003-2010 Ford E-350/E-450 Super Duty, Excursion, and F-250/F-350/F-450/F-550 (6.0L Powerstroke Diesel).

Mahle Moly piston rings are engineered to meet the demanding OE requirements of the 6.0L Powerstroke turbo diesel engine. By focusing on reduced friction and optimized ring mass, these rings help minimize engine oil consumption while extending the service life of the 363 CID power plant. Designed to maintain a precise seal under the high-pressure conditions of a turbo diesel environment, these rings ensure your engine maintains peak compression and efficiency.

• Precision engineered for the Ford 6.0L (363 CID) Powerstroke Turbo Diesel
• Advanced Moly coating for reduced friction and cylinder wall wear
• Optimized ring mass for improved oil control and longevity
• Meets or exceeds original equipment specifications for fit and performance

Fits select 2003-2010 Ford E-350, E-450, Excursion, and F-250/F-350/F-450/F-550 Super Duty (6.0L Powerstroke Turbo Diesel).

Restore factory-level sealing and performance to your 6.0L Powerstroke engine with this Mahle Moly Piston Ring Set. Engineered to meet or exceed original equipment requirements, these rings are designed to reduce friction and ring mass, which directly contributes to minimized engine oil consumption and a longer service life. As a leader in diesel engine technology, Mahle uses advanced materials and manufacturing tolerances to ensure each ring provides a consistent seal against the cylinder wall, even under the high-pressure conditions of a 363 CID turbo diesel.

• Fits 6.0L (363 CID) Powerstroke Turbo Diesel engines
• Moly-faced top rings for superior heat resistance and durability
• Engineered to reduce internal friction and reciprocating mass
• Designed to minimize oil consumption and blow-by
• Meets or exceeds OE specifications for fit and material quality

Fits select 2003-2010 Ford E-350, E-450, Excursion, and F-250/F-350/F-450/F-550 Super Duty (6.0L Powerstroke Turbo Diesel / 363 CID).

Restore factory-level sealing and efficiency with this Mahle Moly Piston Ring Set. Engineered to meet or exceed original equipment requirements, these rings are designed to minimize engine oil consumption while reducing friction and ring mass. Mahle utilizes advanced metallurgy to provide a longer service life and reliable performance in the demanding environment of a 6.0L Powerstroke turbo diesel engine.

• Direct replacement for worn or damaged OE piston rings
• Moly-faced construction for improved durability and heat resistance
• Designed to optimize cylinder wall lubrication and reduce friction
• Engineered to maintain strict tolerances for oil control
• Displacement: 6.0L / 363 CID

Fits select 1994-2003 Ford E-350, F-250, F-350, F-450, F-550, and Excursion (7.3L Turbo Diesel).

Maintain peak engine performance and cylinder seal integrity with MAHLE piston rings. Designed to meet or exceed original equipment requirements, these rings are engineered specifically for the 7.3L Navistar-based Powerstroke platform. By reducing friction and ring mass, this set minimizes engine oil consumption while providing the durability required for heavy-duty diesel service life. Whether you are performing a standard rebuild or a sleeve assembly refresh, these rings provide the precision fitment needed for high-compression diesel environments.

• Precision-engineered for 7.3L DI/IDI Navistar Turbo Diesel engines
• Reduced ring mass and friction coefficients for improved mechanical efficiency
• Technical design focused on minimizing engine oil consumption
• Manufactured to OE standards for superior service life and reliability
• Compatible with Ford Trk 445 applications

Fits 1994-2003 Ford E-350/E-450/E-550, Excursion, F-250/F-350/F-450/F-550, and F-Super Duty models (7.3L Diesel V8).

Mahle NAVI piston rings are engineered to meet the demanding requirements of original equipment manufacturers, focusing on reduced friction and minimized ring mass to optimize engine efficiency. This 14420N-010 set is designed specifically for 7.3L Power Stroke engines that have been bored .010" over stock. The chrome-faced construction provides superior durability and heat resistance, ensuring a long service life and consistent oil control in high-compression diesel environments.

• Manufacturer Part Number: 14420N-010
• Configuration: Set for one (1) cylinder/piston
• Bore Specification: .010" Oversize
• Material: Chrome-faced rings for high-wear resistance
• Fitment: 7.3L Diesel V8 Power Stroke engine
• OE-driven design for reduced friction and improved oil consumption

Mahle MS series piston rings are engineered for professional engine builders who require absolute control over ring end gaps. As a file-fit set, these rings are manufactured with additional material to allow for precision hand-filing, enabling you to set exact clearances based on your specific combustion temperatures and power-adder requirements, whether running naturally aspirated, turbocharged, or nitrous configurations.

Constructed from advanced alloys for superior heat conductivity and wear resistance, these rings ensure a high-integrity seal against the cylinder wall to maximize compression and minimize blow-by. The MS series is designed to withstand the stresses of high-RPM operation while maintaining low friction for improved efficiency.

• Bore Diameter: 98.00mm (3.858 in)
• Top Ring Thickness: 1.2mm
• Second Ring Thickness: 1.2mm
• Oil Ring Thickness: 3.0mm
• Series: MS
• Fitment Type: File Fit

Mahle MS piston rings provide superior cylinder sealing and thermal stability for high-performance engine builds. Designed as a precision drop-in solution for 82.50mm bores, these rings are engineered to reduce friction while maintaining a tight seal against the cylinder wall to minimize blow-by and maximize compression.

• Bore Diameter: 82.50mm
• Top Ring Thickness: 1.0mm
• Second Ring Thickness: 1.2mm
• Oil Ring Thickness: 2.8mm
• High-tensile steel construction for increased durability and fatigue resistance
• Optimized tension for improved oil control and reduced cylinder wall wear
• Precision-engineered for consistent performance under high cylinder pressures

This Mahle MS series piston ring set provides the precision and sealing required for high-performance engine builds. Designed for a 3.662-inch bore with a +.005-inch allowance, these file-fit rings allow the engine builder to set exact end-gap clearances for optimal combustion control and blow-by reduction.

• Bore Size: 3.662 inch (+.005 oversized for file-fitting)
• Top Ring Thickness: 1.0mm
• Second Ring Thickness: 1.0mm
• Oil Ring Thickness: 2.0mm
• Tension: Standard Tension
• Manufacturer Part Number: MS

Each set is engineered with Mahle's advanced metallurgy to maintain structural integrity under thermal stress while ensuring consistent oil control across the cylinder wall.

This Mahle piston ring set is engineered to restore factory-level compression and oil control in Volkswagen TSI engines with an 83.0mm bore. Designed for a single cylinder, this set provides a direct replacement for worn or fatigued rings, ensuring a precise seal against the cylinder wall to maintain performance and engine efficiency.

Manufactured to exacting tolerances, Mahle rings utilize advanced materials and coatings to reduce friction and resist heat-cycling wear. This specific configuration features a 1.2mm top compression ring, a 1.5mm second compression ring, and a 2.0mm oil control ring, specifically matched to the piston groove requirements of the TSI platform.

• Bore Diameter: 83.0mm
• Top Ring Thickness: 1.2mm
• Second Ring Thickness: 1.5mm
• Oil Ring Thickness: 2.0mm
• Configuration: Set for 1 Cylinder
• Engine Application: Volkswagen TSI

Fits select 1990-2005 Ford Escort, Mazda 323, Miata, MX-3, Protege, and Mercury Tracer (1.8L).

Engineered to meet the rigorous demands of original equipment manufacturers, the Mahle 41608 piston ring set provides a technically advanced sealing solution for your 1.8L engine. These rings are designed to reduce friction and ring mass, which directly contributes to better throttle response and minimized oil consumption. By utilizing high-quality materials and precision manufacturing, this set offers a longer service life and superior durability compared to standard replacement options.

• Advanced Materials: Features a chrome ring face for enhanced wear resistance and cylinder wall protection.
• OE Performance: Designed to exact tolerances for reduced friction and optimized engine efficiency.
• Complete Set: Includes all necessary rings to complete a single-engine rebuild for the 1839cc (1.8L) displacement.
• Proven Durability: Resists heat and high-RPM stress, maintaining consistent cylinder sealing over time.

Whether you are refreshing a high-mileage Miata or rebuilding a Protege engine, Mahle rings provide the exact fit and finish required for professional-grade results. Manufacturer Part Number: 41608.

Fits the 1985-1986 Honda ATC350X Base.

Wiseco 4-stroke piston ring sets are engineered to exact specifications to ensure maximum compression sealing and precise oil control. Designed as a critical component of the combustion cycle, these rings are developed and tested to maintain performance under race conditions. This specific set is built to provide a reliable seal for Wiseco 4-stroke pistons, helping to prevent blow-by and maintain consistent power output.

• Bore Size: 81.00mm
• Ring Thickness: 1.0mm Top, 1.0mm Second, 2.0mm Oil
• Cylinder Count: 1 Cylinder Set
• Application: 4-Stroke Engines
• Manufacturer Part Number: 3189XG

Fits select 2009-2017 Chrysler, Dodge, Jeep, and Ram vehicles (3.6L).

This Mahle Moly Piston Ring Set (MPN 42155CP.010) is engineered to meet the rigorous demands of the Chrysler 3.6L V6 Pentastar engine. These rings are designed to restore factory compression and oil control by utilizing advanced materials that reduce friction and ring mass. The molybdenum-faced top rings provide a hard, wear-resistant surface that excels in high-heat environments while ensuring a precise seal against the cylinder bore.

• Manufacturer Part Number: 42155CP.010
• Fits 3.6L V6 Pentastar engine applications
• Molybdenum-faced top rings for superior durability and reduced internal friction
• Optimized ring tension to minimize oil consumption and improve service life
• Direct-fit replacement engineered to original equipment tolerances

Fits select 1971-2017 Ford, Honda, Mitsubishi, Chrysler, Dodge, Plymouth, and Arctic Cat vehicles.

Engineered for precision sealing and long-term durability, Wiseco 4-stroke piston ring sets are manufactured to exacting tolerances to complement Wiseco shelf stock pistons. These rings are designed to maximize compression and optimize oil control, providing a reliable barrier that translates to consistent power delivery. Whether you are rebuilding a classic Ford 4.6L V8, a Mitsubishi VR-4, or a Honda TRX500 utility ATV, these rings deliver the race-proven performance necessary for demanding environments.

• Bore Diameter: 92.00mm
• Application: 4-Stroke engines
• Optimized for compression sealing and oil management
• Developed and tested for high-performance and racing use
• Manufacturer Part Number: 9200XX

Maintain the sealing integrity and performance of your engine with this genuine CP Pistons replacement ring set. Specifically engineered for use with the CP Piston Kit SC7112, this set (MPN: CPN-3268) ensures the precise ring-to-groove clearances and tension required for high-stress applications.

• Direct replacement ring set for CP Piston Kit SC7112
• Engineered to maintain strict OEM-plus tolerances for oil control and combustion sealing
• Includes a full set of rings for the designated application
• Manufacturer Part Number: CPN-3268

Fits select 1960-1990 Chrysler, Dodge, Plymouth, and Jeep models (3.7L / 225).

Restore engine compression and oil control with this Mahle piston ring set. Engineered to meet or exceed OE requirements, these rings are designed to reduce friction and minimize mass, which directly results in lower engine oil consumption and an extended service life. This plain ring set provides a precise seal against the cylinder wall, ensuring your classic Slant-6 or industrial engine maintains peak efficiency and durability under varying load conditions.

• Manufacturer Part Number: 50276CP.030
• Engine Fitment: 3.7L / 225 CID Inline-6
• Oversize: .030 in
• Material: Technically advanced alloys for reduced friction
• High-grade surface finishes for rapid break-in and consistent sealing
• Designed for long-term service life in automotive and industrial applications

Fits select 2001-2010 Infiniti and Nissan models equipped with the 3.5L VQ35DE engine, including the 350Z, G35, Altima, and Maxima.

Mahle piston rings are engineered to meet strict original equipment requirements, focusing on reducing internal friction and ring mass. This chrome-faced ring set is designed to minimize engine oil consumption while providing a long service life under various operating conditions. These rings ensure a precise seal against the cylinder wall to restore lost compression and maintain engine efficiency.

• Manufacturer Part Number: 42239CP
• Engine Displacement: 3.5L (3498cc)
• Engine Code: VQ35DE
• Material: Chrome-faced top rings for enhanced durability
• Design: Reduced ring mass to minimize friction
• Service: Engineered for extended service life and superior oil control

Maintain peak engine performance with the CP Pistons CPN-3524 replacement ring set. This high-performance ring set is engineered specifically as a direct replacement for CP piston part numbers SC7300, SC73264V, and CS7343V. Whether you are performing an engine refresh or a complete rebuild, utilizing these application-specific rings ensures the precise cylinder sealing and oil control required for high-load environments.

These rings are manufactured to strict tolerances to match the original specifications of your CP shelf-stock pistons, facilitating efficient heat transfer and reducing blow-by. Each component is designed to withstand the rigors of performance driving while protecting the cylinder walls.

• Manufacturer Part Number: CPN-3524
• Engineered for CP Pistons: SC7300, SC73264V, and CS7343V
• Precision-ground for optimal compression and oil management
• Direct replacement for the rings originally supplied with the piston kit

Fits select 2004-2020 Honda CRF450L/TRX450R, Infiniti G37, Kawasaki KFX450R, Nissan 370Z, and Yamaha YFZ450/R/X.

Wiseco 4-stroke piston ring sets are engineered to exact tolerances to ensure maximum compression, superior sealing, and consistent oil control. Designed specifically for use with Wiseco’s 4-stroke pistons, these rings undergo rigorous testing to meet the demands of high-performance racing and street applications. Choosing the correct ring set is critical to maintaining cylinder pressure and protecting your engine from blow-by and excessive oil consumption.

• Bore Size: 96.0mm
• Manufacturer Part Number: 9600XS
• Optimized for Wiseco Piston P/N: K643M96
• High-grade materials for improved heat dissipation and durability
• Precision-engineered for consistent ring tension and wall pressure

Vehicle Fitment:

Fits select 1948-2014 Acura, Chrysler, Dodge, Honda, Infiniti, Mitsubishi, Nissan, and Plymouth models.

This Wiseco 4-stroke piston ring set (MPN: 8900XX) is precision-engineered to provide a superior seal and maintain critical cylinder compression. Designed to meet the exact specifications of Wiseco's high-performance 4-stroke pistons, these rings offer optimized oil control and reduced friction for demanding racing and street applications. Developed and tested for race-ready performance, this set ensures the longevity and efficiency of your internal engine components.

• Bore Size: 89.00mm
• Type: 4-Stroke Piston Ring Set
• Designed for maximum sealing and oil control
• Compatible with Wiseco shelf-stock 4-stroke pistons
• Manufacturer Part Number: 8900XX