{"product_id":"sierra-18-6511-rewind-spring-for-johnson-evinrude-outboard-replaces-omc-312932","title":"Sierra Rewind Spring 18-6511, Replaces 318940, for 9.9 - 15HP Outboard Motors (1974-1992)","description":"\u003cp\u003eThe Sierra 18-6511 Rewind Spring is a recoil starter spring engineered as a direct replacement for outboard motors in the 9.9 - 15HP range built in 1974-1992. This spring is the coiled component inside the manual starter assembly that retracts the starter rope after each pull, resetting the mechanism so the motor is ready for the next start attempt. When a rewind spring weakens, breaks, or loses tension, the starter rope will fail to retract properly or the pull cord will feel loose and unresponsive, making the outboard difficult or impossible to start by hand.\u003c\/p\u003e\u003cp\u003eSierra manufactures this spring to meet or exceed original equipment specifications, so it installs and functions the same as the factory part it replaces. It directly replaces OEM part number 318940, making it straightforward to identify and order the correct spring for a 9.9 - 15HP outboard from the 1974-1992 production years. The part weighs 0.29 pounds as packaged.\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 18-6511\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Rewind Spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.29 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999320346\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower Range:\u003c\/strong\u003e 9.9 - 15HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Years:\u003c\/strong\u003e 1974-1992\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 318940\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e9.9 - 15HP outboard motors, 1974-1992\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e318940\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-6511 rewind spring fit?\u003c\/strong\u003e The Sierra 18-6511 is designed for outboard motors in the 9.9 - 15HP range built in the 1974-1992 model years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-6511 replace OEM part 318940?\u003c\/strong\u003e Yes, part number 18-6511 is a direct replacement for OEM part 318940.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a rewind spring actually do?\u003c\/strong\u003e It is the coiled spring inside the manual starter assembly that retracts the starter rope after each pull, resetting the recoil starter for the next start attempt.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my rewind spring needs replacing?\u003c\/strong\u003e If the starter rope on your 9.9-15HP outboard fails to retract fully, feels loose, or the recoil mechanism will not reset, a worn or broken rewind spring such as the 18-6511 is a likely cause.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6511 a genuine Sierra part or aftermarket?\u003c\/strong\u003e It is manufactured by Sierra and built to meet or exceed original equipment quality standards for a 9.9-15HP outboard rewind spring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-6511 rewind spring weigh?\u003c\/strong\u003e This rewind spring weighs 0.29 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-6511 spring assembly?\u003c\/strong\u003e The Sierra 18-6511 rewind spring is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the 18-6511 myself or do I need a mechanic?\u003c\/strong\u003e Replacing a recoil starter rewind spring like the 18-6511 involves disassembling the manual starter housing, which requires care due to spring tension, so many owners with basic mechanical experience can do it, though those unfamiliar with recoil starters may prefer a marine mechanic.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-6511?\u003c\/strong\u003e The UPC for the Sierra 18-6511 rewind spring is 030999320346.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-6511 work on outboards outside the 9.9-15HP range?\u003c\/strong\u003e The 18-6511 is specified for the 9.9 - 15HP range from 1974-1992; horsepower ratings outside this range are not covered by this part.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988357918939,"sku":"SIE-18-6511","price":22.53,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-6511_lg__53929.1558129359.500.750.jpg?v=1785187997","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-6511-rewind-spring-for-johnson-evinrude-outboard-replaces-omc-312932","provider":"Good Vibes Marina","version":"1.0","type":"link"}