For 1970-75 1-cyl, 10 Hp | 2-cyl, 12-15 Hp | 3-cyl, 90 Hp | 6-cyl, 67-92 Hp diesel engines.
Pin Drive Hub
ID: 9.54 mm | OD: 39.6 mm
W: 18.94 mm | 6 blades

also crosses with:
Sierra: 18-3079
Mallory: 9-45717
Sherwood: 9979