Click here to shop for this part on Amazon.com Click here to shop for this part on ebay.com 18-3740 Cotter Pin 3/32" x 1" WorksWith Evinrude 9.9 HP 1974 Model 1024 1025 01454 10455 Johnson 9.9 HP 1974 Model 10E74, 10EL74 Evinrude 9.9 HP 1975 Model 10524 10525 10554 10555 Johnson 9.9 HP 1975 Model 10E75, 10EL75 Evinrude 15 HP 1974 Model 15404 15404 15554 15555 Johnson 15 HP 1974 Model 15E74, 15EL74, 15R74, 15RL74 Evinrude 15 HP 1975 Model 15504 15505 15554 15555 15605 Johnson 15 HP 1975 Model 15E75, 15EL75, 15R75, 15RL75