Mahle 42149CP.020 Engine Piston Ring Set

Overview

Mahle 42149CP.020 is a premium engine piston ring set built for 0.020 in oversize applications. It uses a shallow groove design with carbon steel top and second rings, a stainless steel oil ring assembly, and a plasma-moly face coating for controlled friction and oil management.

Compatible with Ford F-150, Ford Lobo, Ford Mustang, and Lincoln Mark LT applications listed below, this piston ring set is focused on restoring sealing performance in the cylinder block assembly. The Mahle 42149CP.020 part number appears in the fitment data for multiple 2011-2017 applications.

Key Features

• 0.020 in oversize piston ring set for matched rebuild applications.
• Plasma-moly face coating for reduced friction at the ring face.
• Carbon steel top and second rings for durable sealing performance.
• Stainless steel oil ring assembly for oil control.
• Shallow groove design for the specified piston configuration.

Detailed Description

Mahle 42149CP.020 is engineered as a premium piston ring set for engines requiring a 3.6496 in bore diameter and 0.020 in oversize sizing. The ring package combines a carbon steel top ring, carbon steel second ring, and stainless steel oil ring assembly, with a plasma-moly coated ring face to support low-friction operation and consistent cylinder sealing. This configuration is relevant for rebuild work where ring material, thickness, and groove style must match the piston and bore specification. The Mahle 42149CP.020 is listed for 2011-2017 Ford F-150, Ford Lobo, Ford Mustang, and 2011-2014 Lincoln Mark LT applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Excessive oil consumption from worn ring sealing surfaces.
• Loss of compression caused by ring wear or cylinder sealing issues.
• Increased friction from degraded ring face material.
• Rebuild needs for engines requiring 0.020 in oversize rings.
• Fitment-specific replacement during engine overhaul work.

Installation Notes

Verify bore diameter, oversize requirement, ring thickness, and shallow groove specification before installation. Match the ring set to the piston and cylinder dimensions listed in the fitment data, and confirm the engine build details for the specific Ford F-150, Ford Mustang, Ford Lobo, or Lincoln Mark LT application. Proper ring end gap measurement and cylinder preparation are critical during assembly.

Quality Assurance

Mahle designs piston rings to OE requirements, with an emphasis on reduced friction, lower oil consumption, and longer service life. The premium grade construction and material selection reflect the brand's focus on technical piston ring development.