Parts for a Mercruiser can be purchased online at MercruiserParts.com, MarineEngine.com and Go2Marine.com, as of 2015. MarineEngine.com and Go2Marine.com also offer purchases via telephone. All three merchants sell genuine replacement parts.
Owned and operated by BAM Marine of Florida Inc, MercruiserParts.com features a part search by number or by picture. The merchant has no minimum order amount, but does charge a handling fee for orders under $100.
In addition to parts, MarineEngine.com, offers downloadable Mercruiser manuals for models made between 1962 and 2008.
Go2Marine.com offers free shipping on all orders of $99 or more. The site sells parts such as alternators and water pumps, and offers a parts search option.