1970-72 YAMAHA R5,R5B,R5C,RINGS 3RD OS NOS OEM P/N 278-11610-31

NOS 1970-72 YAMAHA R5 350 3RD OVER .75 PISTON RINGS 278-11610-31-00

NOS 1970-72 YAMAHA R5 350 (3RD OVER .75) PISTON # 278-11637-09

NOS Yamaha 1970 1971 1972 R5 Piston Rings .75 278-11610-31

Yamaha 1970 R5 1971 R5B 1972 R5C Piston Ring Set 3rd O/S .75mm 278-11610-31-00

NOS Yamaha 1970-72 R5 Rocky .75 Oversize Piston Ring Set 278-11610-31

NOS Riken 3rd O/S .75mm 0.75mm Piston Rings Yamaha 67 YDS5 65 YDS3 156-11610-30

NOS Yamaha OEM Piston Ring Set 0.75 1970-1972 R5 278-11610-31