For 1979-2005 Johnson/Evinrude 2-cyl, 3-50 Hp | 3-cyl, 65-80 Hp | V4, 85-140 Hp | V6, 150-235 Hp | V8, 250-300 Hp outboards.

also crosses with:
Sierra: 18-2557
GLM: 33730
Mallory: 9-60401