Sierra 18-5610 Starter, Mercury 100/115/125 HP 4-Cylinder
- Brand:
- Sierra
- Part no:
- 18-5610
Where to buy
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The Sierra 18-5610 is a marine starter for Mercury and Mariner outboards. It has an 8-tooth gear and fits 100, 115 and 125 HP four-cylinder engines. It is shown as interchangeable with Mercury Marine numbers 50-893892T, 50-660151, 50-660153 and 50-66015T. Model years and serial ranges are not specified, so verify your engine application first.
Our take
The 8-tooth starter gear and the 100, 115 and 125 HP four-cylinder fit define the 18-5610, so count the teeth on your old starter and confirm the engine. Model years and serial ranges are not given, which leaves that check to you.