For 1981-2007 Johnson/Evinrude 1-cyl, 2 Hp | 2-cyl, 2.5-55 Hp | 3-cyl, 60-75 Hp | 4-cyl, 80-140 Hp | V6, 150-235 Hp | V8, 250-300 Hp outboards. 12″ long.

also crosses with:
Sierra: 18-8818-1
Mallory: 9-28005