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S&S, fits 1973-1989, S&S engines from 1954 to present and all models equipped with a pre-1989 pinion shaft and one woodruff key. Also fits 1954-1972 engines when fitted in conjunction with ZPN 239882 pinion shaft gear (OEM 26349-73, 26349-73A & 26349-84)
Oil pump drive gears for single cam Big Twin.