3TNE74 3TNV74 3TNM Piston Rings 3 Cylinders STD 74*1.5HK+1.5+3mm For 3TNV74 3TNM74 74mm Overhaul Rebuild Kit Engine Parts Piston rings set designed for 3 cylinder engines with standard 74mm bore size.Includes three rings per cylinder with dimensions of 74mm diameter and thicknesses of 1.5HK, 1.5mm, and 3mm.Compatible with engine models 3TNE74, 3TNV74, and 3TNM74.Suitable for engine overhaul and rebuild applications where piston ring replacement is required.Components are engineered to meet specifications for fit and function in 74mm cylinder configurations. Important: This is a non-OEM part.Any brand or model cited is used to denote device compatibility.