{"product_id":"sierra-18-55505-outboard-starter-12v-marine-replacement-starter-motor-with-upgraded-solenoid-and-water-intrusion-sealing","title":"Sierra 18-55505 Outboard Starter for Mercury Outboard Engines, 12 Volt DC","description":"\u003cp\u003eThe Sierra 18-55505 is a 12 volt DC outboard starter built for Mercury outboard engines, engineered to hold up in harsh marine environments where moisture and vibration cause standard starters to fail early. It features OEM-upgraded internals, including a strengthened connection between the solenoid and the commutator brushes, an upgraded planetary seal, and a robust clutch gear spring, all aimed at extending service life and improving cranking reliability season after season.\u003c\/p\u003e\u003cp\u003eA redesigned solenoid uses higher quality materials for consistent performance and includes an increased battery stud length that makes wiring and installation easier at the bench or in the boat. To fight the water intrusion that plagues outboard starters, Sierra integrated seals at key points in the housing along with a one-way duckbill moisture valve and relief cuts, so any water that does get in has a path out before it can start corroding internal components. The starter carries a painted surface finish and an improved housing for added corrosion resistance in salt or fresh water use.\u003c\/p\u003e\u003cp\u003eRated at 1.4 kW and weighing 7.7 pounds, the Sierra 18-55505 is designed as a direct functional upgrade over standard replacement starters for Mercury outboard engines.\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 18-55505\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 Volts (DC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage:\u003c\/strong\u003e 1.4 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase Type:\u003c\/strong\u003e Single Phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 7.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282379094\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-55505?\u003c\/strong\u003e It is a 12 volt DC outboard starter built by Sierra for Mercury outboard engines, part number 18-55505.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-55505 fit my Mercury outboard?\u003c\/strong\u003e The Sierra 18-55505 is designed for Mercury outboard engines; check your existing starter's part number or your engine's parts diagram against 18-55505 to confirm an exact match before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this starter weigh?\u003c\/strong\u003e The Sierra 18-55505 outboard starter weighs 7.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage is the Sierra 18-55505 starter?\u003c\/strong\u003e It is a 12 volt DC starter rated at 1.4 kW.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat makes this starter better than a standard replacement?\u003c\/strong\u003e The 18-55505 includes OEM-upgraded features not found on basic replacement starters: a strengthened solenoid-to-commutator brush connection, an upgraded planetary seal, and a reinforced clutch gear spring for longer service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the Sierra 18-55505 handle water intrusion?\u003c\/strong\u003e Seals are placed at key points throughout the housing, and a one-way duckbill moisture valve along with relief cuts lets any water that gets in drain back out before corrosion can start.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the housing made of?\u003c\/strong\u003e The Sierra 18-55505 starter has a plastic housing component with a painted surface finish for added corrosion resistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation different from a standard starter?\u003c\/strong\u003e The 18-55505 has an increased battery stud length compared to standard designs, which Sierra built in specifically to make cable connection and installation easier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-55505?\u003c\/strong\u003e You receive one complete Sierra 18-55505 outboard starter assembly, ready to install.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-55505 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-55505 is manufactured and sold under the Sierra brand as an OEM-upgraded replacement starter, not a generic third-party clone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-55505 include the solenoid?\u003c\/strong\u003e Yes, the Sierra 18-55505 starter comes with its solenoid attached as part of the complete starter assembly, featuring Sierra's improved solenoid design.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988218327259,"sku":"SIE-18-55505","price":215.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__72104.1753840745.500.750.jpg?v=1785188473","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-55505-outboard-starter-12v-marine-replacement-starter-motor-with-upgraded-solenoid-and-water-intrusion-sealing","provider":"Good Vibes Marina","version":"1.0","type":"link"}