For 1975-2006 MC-1, R/MR/Alpha One, Bravo, SSM & Dry Six gear housings, Propshafts, vac pumps, fuel lines, thermostat housings, carburetors and other applications. 3/8″ x 16 x 1.00″ | hex head

also crosses with:
Sierra: 18-2361
GLM: 22430