Sierra Marine engine parts are designed to meet or exceed the OEM part they are intended to replace and they are backed by the SeaStar Solutions Two-Year Warranty—one of the best in the business.
We offer a variety of Cotter Pins, for most engine applications on the water today—including MerCruiser, OMC, Johnson/Evinrude, Volvo and more.
The Sierra Engine Parts Selector
Many of the cotter Pins we offer fit multiple applications. If you do not see the Cotter Pin (or other engine part) you need, please visit the Sierra Engine Parts Selector, where you can search by engine make, model, serial number or year of manufacture.





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