BBTV 2C5173 Engine Piston Ring

Engine Piston Ring Set for Mitsubishi Lancer

This engine piston ring set is built for the 3.209-inch bore specification used in select Mitsubishi Lancer 4-cylinder applications. Part number 2C5173 is a standard-size ring set with chrome-treated top rings and a steel rail/stainless expander oil ring design.

Key Features

• Standard-size piston ring set for 81.50 mm engine bore applications
• Chrome surface treatment on the top ring for wear resistance
• Phosphate-treated second ring for controlled seating characteristics
• Steel top ring construction with grey iron second ring material
• Steel rail and stainless expander oil ring design for oil control

Detailed Description

Part number 2C5173 is an engine piston ring set for 2002-2007 Mitsubishi Lancer models with the specified 3.209-inch bore. The ring package includes a 1.2 mm top groove, 1.2 mm second groove, and 2.5 mm first oil groove configuration, matching the listed engine dimensions for these Mitsubishi Lancer applications. The chrome top ring and phosphate second ring surfaces are selected to support ring seating and cylinder wall contact in standard-bore rebuild work.

This part cross-references Monroe Shocks & Struts (e.g., MD371157) for the same application.

What It Is Used For

• Restoring compression in worn cylinder bores
• Reducing oil consumption caused by ring wear
• Addressing blow-by from tired piston rings
• Supporting proper combustion sealing during engine rebuilds
• Replacing worn rings in standard-bore 4-cylinder engines

Installation Notes and Tips

Verify bore size, groove widths, and ring end gaps before installation. This ring set is listed for 2002-2007 Mitsubishi Lancer applications with the specified engine bore and groove dimensions, so confirm the engine matches the published fitment data before assembly. Clean piston ring grooves thoroughly and follow the engine builder’s measurement procedures during installation.

Quality Assurance

Fitment data is provided for 2002-2007 Mitsubishi Lancer applications, and the listed dimensions should be matched to the engine during rebuild preparation. Part number 2C5173 is specified as a standard-size ring set for the published bore and groove measurements.