BBTV 665 Engine Piston Ring

Engine Piston Ring Set Overview

This engine piston ring set is built for a 3.875-inch bore and standard oversize applications. It uses grey iron top and second rings, with a steel rail and stainless expander oil ring design for controlled sealing and oil management. Part number 665 is listed across a wide range of classic and late-model applications, including Jeep, Dodge, and Chevrolet platforms.

Key Features

• Standard oversize configuration for 3.875-inch bore engines
• Grey iron top ring and second ring construction
• Steel rail and stainless expander oil ring design
• Phosphate surface treatment on the top and second rings
• Chrome-treated oil ring surface for added wear resistance
• Fits multiple 4-cylinder applications

Detailed Description

Part number 665 is an engine piston ring set engineered around a 3.875-inch bore with standard oversize dimensions. The ring package combines a grey iron top ring, grey iron second ring, and a steel rail/stainless expander oil ring arrangement to support cylinder sealing and oil control. Phosphate treatment on the compression rings and chrome treatment on the oil ring surfaces add material-specific protection where it matters most. This part cross-references MAHLE 50452CP for the same application.

What It Is Used For

• Restoring compression in worn cylinders
• Reducing oil consumption from ring wear
• Addressing blow-by caused by poor ring sealing
• Replacing rings during a rebuild or overhaul
• Supporting consistent cylinder wall contact in 4-cylinder engines

Installation Notes and Tips

Verify bore size, groove dimensions, and ring end gap before installation. Confirm the engine matches the listed 3.875-inch bore and standard oversize specification, and follow the service manual for ring orientation and break-in procedures. Fitment includes applications such as Fits 1996-2000 Dodge Dakota, N/A; Fits 1984-2000 Jeep Cherokee, N/A; Fits 1997-2000 Jeep Wrangler, N/A; Fits 1987-1995 Jeep Wrangler, N/A; Fits 1986-1992 Jeep Comanche, N/A; Fits 1988-1989 Eagle Premier, N/A; Fits 1984-1987 Jeep Wagoneer, N/A; Fits 1983-1986 Jeep CJ7, N/A; Fits 1983-1985 Jeep Scrambler, N/A; Fits 1983-1984 American Motors Eagle, N/A; Fits 1969-1970 Chevrolet Nova, N/A; Fits 1962-1970 Pontiac Acadian, N/A; Fits 1962-1968 Chevrolet Chevy II, N/A; Fits 1963-1965 Chevrolet P10 Series, N/A; Fits 1963-1965 GMC G1000 Series, N/A; Fits 1963-1965 GMC PB1000 Series, N/A; Fits 1963-1965 GMC Suburban, N/A.

Quality Assurance

Part number 665 is cataloged with OE-style interchange coverage and a broad application list for Jeep, Dodge, and Chevrolet engines. The listed interchange reference includes MAHLE 50452CP.