{"product_id":"sierra-18-5603-1-noseless-marine-starter-for-gm-ford-standard-rotation-inboard-engines-replaces-oem-573001","title":"Sierra 18-5603-1 Noseless Starter, Top Mount Rear Entry, Replaces 573001, GM and Ford Standard Rotation Engines","description":"\u003cp\u003eThe Sierra 18-5603-1 is a noseless, top mount, rear entry starter built for standard rotation GM and Ford marine engines. It turns CCW (counterclockwise) and is engineered as a direct replacement for OEM part number 573001, giving boat owners a straightforward swap when the original starter fails or needs replacement. This starter can also be used in place of Sierra part 18-5908, making it a flexible option for shops and owners servicing multiple engine setups that call for either part.\u003c\/p\u003e\u003cp\u003eConstruction is steel, and the unit is rated at 1.2 KW with a three phase design. At 10.4 pounds, it matches the physical demands of inboard cranking duty on standard rotation blocks. It is backed by a 90 day warranty, giving buyers confidence in fit and function from install.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5603-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter Type:\u003c\/strong\u003e Noseless, top mount, rear entry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e CCW (standard rotation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e GM and Ford engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable With:\u003c\/strong\u003e Sierra 18-5908\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage:\u003c\/strong\u003e 1.2 KW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase Type:\u003c\/strong\u003e Three Phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 10.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282379087\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 90 days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStandard rotation GM engines\u003c\/li\u003e\n\u003cli\u003eStandard rotation Ford engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e573001\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5603-1 starter fit?\u003c\/strong\u003e The Sierra 18-5603-1 is built for standard rotation GM and Ford marine engines, turning CCW (counterclockwise) in a top mount, rear entry configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5603-1 a match for an OEM 573001 starter?\u003c\/strong\u003e Yes, the 18-5603-1 replaces OEM part number 573001, making it a direct swap for engines originally fitted with that starter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does noseless mean for this starter?\u003c\/strong\u003e Noseless describes the housing style of the Sierra 18-5603-1, which mounts at the top of the engine and enters at the rear rather than using a front drive nose extension.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-5603-1 be used instead of a Sierra 18-5908 starter?\u003c\/strong\u003e Yes, the Sierra 18-5603-1 can be used in place of Sierra part 18-5908 on applicable standard rotation GM and Ford engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich direction does this starter rotate?\u003c\/strong\u003e The Sierra 18-5603-1 turns CCW, meaning it is built for standard rotation engines, not reverse rotation applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5603-1 starter weigh?\u003c\/strong\u003e This starter weighs 10.4 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the mounting style of the 18-5603-1?\u003c\/strong\u003e The Sierra 18-5603-1 is a top mount, rear entry starter with a noseless housing design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-5603-1 starter made from?\u003c\/strong\u003e The 18-5603-1 starter is made of steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the power rating of this starter?\u003c\/strong\u003e The Sierra 18-5603-1 is rated at 1.2 KW.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5603-1 a three phase or single phase unit?\u003c\/strong\u003e The Sierra 18-5603-1 is a three phase starter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat warranty covers the Sierra 18-5603-1 starter?\u003c\/strong\u003e A 90 day warranty covers the Sierra 18-5603-1 starter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5603-1 starter?\u003c\/strong\u003e The UPC for the Sierra 18-5603-1 starter is 808282379087.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988218589403,"sku":"SIE-18-5603-1","price":237.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5603-1__42367.1737836086.500.750.jpg?v=1785188299","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5603-1-noseless-marine-starter-for-gm-ford-standard-rotation-inboard-engines-replaces-oem-573001","provider":"Good Vibes Marina","version":"1.0","type":"link"}