Mahle 41912CP Engine Piston Ring Set

Mahle 41912CP Piston Ring Set

The Mahle 41912CP engine piston ring set is built for standard-bore rebuilds that demand precise sealing, controlled oil use, and consistent ring performance. It is a premium-grade ring set for select Toyota and Lexus applications, including Camry, Avalon, ES300, RX300, Highlander, Sienna, and Solara engines.

Key Features

• Standard bore diameter: 3.4449 in.
• Premium item grade for engine rebuild applications.
• Top ring material: carbon steel with chrome face coating.
• Second ring material: cast iron with 0.0468 in axial height.
• Oil ring assembly material: stainless steel with 0.1181 in axial height.
• Shallow groove design for listed OE-style applications.
• Fits select 1994-2006 Toyota and Lexus models.

Detailed Description

Mahle 41912CP is an engine piston ring set engineered around OE-driven requirements for reduced friction, lower ring mass, and controlled oil consumption. The ring package uses a carbon steel top ring with chrome facing, a cast iron second ring, and a stainless steel oil ring assembly to support sealing and durability in standard-size rebuilds. This part cross-references Hastings Piston Rings 2C4902 and Sealed Power E961KC for the same application. It is a direct-fit choice for rebuild work on 1995-2006 Toyota Camry, 1995-2004 Toyota Avalon, 1994-2003 Lexus ES300, 1999-2003 Lexus RX300, 2001-2003 Toyota Highlander, 1998-2003 Toyota Sienna, and 1999-2003 Toyota Solara engines where the listed shallow-groove configuration is required. Mahle 41912CP is a practical match for technicians and engine builders looking for a standard-bore piston ring set with OE-style material selection and dimensions.

Common Uses

• Restoring cylinder sealing after engine wear or overhaul.
• Addressing oil consumption caused by worn or stuck rings.
• Improving compression retention during a rebuild.
• Replacing rings during standard-bore engine service.
• Supporting repair of blow-by, smoke, or loss of power tied to ring wear.

Installation Notes and Tips

Verify bore size, groove style, and ring end gap before assembly. Clean piston ring grooves thoroughly and inspect cylinders for taper, scoring, or out-of-round conditions before installing the Mahle 41912CP set. Follow the engine builder’s ring orientation, gap placement, and break-in procedure for the specific Toyota or Lexus application. Confirm the shallow groove specification matches the piston being used.

Quality Assurance

Mahle piston rings are developed to meet OE-level engineering expectations for friction control, oil management, and service life. The 41912CP reflects Mahle’s premium ring construction and material selection for listed Toyota and Lexus engine applications.