BBTV 2C5158 Engine Piston Ring

Engine Piston Ring for Ford, Mazda, and Lincoln

This engine piston ring set is built for 87.50 mm bores and standard oversize applications. Part number 2C5158 is listed across a wide range of Ford, Mazda, Lincoln, and Mercury vehicles, including Ford Focus, Ford Fusion, and Mazda 3 applications.

Key Features

• Standard oversize specification for direct engine service use.
• 87.50 mm bore size with a 3.445 in. engine bore measurement.
• Chrome top ring surface treatment for wear resistance.
• Steel top ring construction with a chrome finish.
• Steel rail and stainless expander oil ring design.
• Grey iron second ring with phosphate surface treatment.
• Fits 2001-2016 Ford, Mazda, Lincoln, and Mercury applications listed below.

Detailed Description

Part number 2C5158 is an engine piston ring set for four-cylinder applications with a standard bore size. The ring package uses a chrome-treated top ring, a steel rail and stainless expander for the first oil groove, and a grey iron second ring with phosphate treatment. These material and finish choices support ring sealing, oil control, and cylinder wall contact in service. This part cross-references Ford and Mazda OE numbers such as BE8Z-6148-A and LFY1-11-SC0A for the same application.

Compatible with Ford Focus, Ford Fusion, Mazda 3, and related engine applications, 2C5158 is a fitment-based replacement for a broad range of 2001-2016 vehicles. The listed fitment includes Ford C-Max, Escape, Explorer, Taurus, Transit Connect, Ranger, and Mondeo, along with Mazda MX-5 Miata, Mazda 5, Mazda Tribute, Mazda B2300, Mercury Milan, Mercury Mariner, Lincoln MKZ, and Lincoln MKT.

What It Is Used For

• Restoring cylinder compression when ring wear has increased.
• Reducing oil consumption caused by worn oil control rings.
• Addressing blow-by from tired or damaged piston rings.
• Replacing rings during an engine rebuild or top-end service.
• Correcting poor sealing in high-mileage four-cylinder engines.

Installation Notes and Tips

Verify bore size, groove dimensions, and engine code before installation. Match the ring set to the cylinder specification and inspect the cylinder wall finish, ring end gap, and groove clearance during assembly. Confirm the application against the vehicle listing for your Ford, Mazda, or Lincoln engine before final installation.

Quality Assurance

Use this part only where the bore and groove dimensions match the engine specification. The chrome and phosphate surface treatments, along with the mixed-material ring design, reflect a service-focused construction for engine rebuild work.