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What is the Sierra 18-5610 Marine Starter for Mercury & Mariner Outboard used for?
The Sierra 18-5610 is a marine starter designed for listed Mercury and Mariner outboard applications. It has an 8-tooth design and fits 100, 115, and 125 HP four-cylinder engines.
What Mercury and Mariner outboard engines does the Sierra 18-5610 starter fit?
The Sierra 18-5610 fits 100, 115, and 125 HP four-cylinder engines. The supplied product description does not specify model years or serial-number ranges, so verify your engine application before purchasing or installing the starter.
How many teeth does the Sierra 18-5610 marine starter have?
The Sierra 18-5610 features an 8-tooth starter gear. Confirm that the tooth count and application match the starter being replaced before installation.
What Mercury Marine part numbers are interchangeable with the Sierra 18-5610?
The Sierra 18-5610 is listed as interchangeable with Mercury Marine part numbers 50-893892T, 50-660151, 50-660153, and 50-66015T. It is also listed with other manufacturer part numbers for application and replacement reference.
What other starter part numbers interchange with the Sierra 18-5610?
Interchangeable part numbers listed for the Sierra 18-5610 include Arco 5392, Mallory 9-15027, and MES S2041M. Verify the part number and engine application before selecting a replacement starter.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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