For 1981-2004 MerCruiser/GM/MIE 4-cyl, 165-190 Hp | V6, 175-205 Hp | V8, 200-900 Hp MC II/TR/TRS, R/MR/Alpha One, Alpha Gen II, Bravo, SSM, Dry Six, M6 & GM/MIE Scorpion engines.

also crosses with:
Sierra: 18-0531
GLM: 85810