For 1968-88 Johnson/Evinrude 2-cyl, 33-60 Hp | 3-cyl, 70-75 Hp | V4, 65-85 Hp | V8, 275-300 Hp outboards.
ID: 1.75″ | OD: 2.0″ | W: 0.125″

also crosses with:
Sierra: 18-7115
GLM: 82240
Mallory: 9-76511