Mahle 42229.020 Engine Piston Ring Set

Overview

Mahle piston ring set 42229.020 is a premium oversize ring set built for 3.189-inch bore applications. It is engineered around OE requirements to reduce friction, control oil consumption, and support longer service life in compatible engines.

Compatible with select Lexus CT200h, Toyota Corolla, Toyota Matrix, and Toyota Prius applications, this 0.020-inch oversize set uses stainless steel and carbon steel ring materials with advanced face coatings for consistent sealing performance. Part number 42229.020 is also cross-referenced to Hastings Piston Rings 2C4113.020 for the same application.

Key Features

• Premium-grade piston ring set for oversize service applications
• 3.189-inch bore diameter with 0.020-inch oversize specification
• Stainless steel top ring and carbon steel second ring construction
• Oil ring assembly with PVD material and 2-piece groove design
• Gas nitride and PVD face coatings for reduced friction and wear control
• Fits select Lexus CT200h, Toyota Corolla, Toyota Matrix, and Toyota Prius engines

Detailed Description

Mahle 42229.020 is designed for engine rebuilds that require an oversize piston ring set with precise axial heights and material selection. The ring package combines a stainless steel top ring, carbon steel second ring, and a PVD oil ring assembly to help maintain cylinder sealing while managing oil control under operating load. The premium construction reflects Mahle’s OE-driven engineering approach and focus on low-friction ring technology. Part number 42229.020 is a direct fit for select 2009-2013 Toyota Corolla, 2009-2013 Toyota Matrix, 2010-2013 Toyota Prius, and 2011-2013 Lexus CT200h applications.

What It Helps Address

• Excessive oil consumption from worn ring sealing surfaces
• Compression loss caused by ring wear or cylinder wear correction during rebuilds
• Increased friction from outdated or damaged ring materials
• Oil control issues in oversize rebuild applications
• Reduced sealing performance in high-mileage engines

Installation Notes

Verify bore size, oversize requirement, and ring groove dimensions before installation. Match the ring set to the engine specification and confirm the fitment notes for the exact application. Professional engine assembly practices, including careful ring end-gap measurement and cylinder preparation, are recommended for proper results.

Quality Assurance

Mahle piston rings are developed to OE requirements and built with advanced ring technology focused on friction reduction, oil control, and service life. This part cross-references Hastings Piston Rings 2C4113.020 for the same application.