{"product_id":"sierra-18-5752-universal-8mm-spark-plug-boot-with-terminal-connector-replaces-oem-580339-for-force-yamaha-outboards","title":"Sierra 18-5752 Universal 8mm Spark Plug Boot, OEM Equivalent 580339, with Terminal Connector","description":"\u003cp\u003eThe Sierra 18-5752 is a universal 8mm spark plug boot supplied complete with a terminal connector, designed to make a secure, weather-resistant connection between an ignition wire and the spark plug on marine engines. The boot's job is to shield the plug connection from moisture, salt spray, and vibration common in the marine environment while maintaining a tight electrical seal so the engine fires reliably. Because it is a universal-fit boot rated for 8mm wire, it is built to be paired during ignition wire replacement, tune-ups, or when repairing a damaged or deteriorated boot on an existing wire set rather than replacing the entire harness. The included terminal connector means no separate crimp fitting is needed to complete the installation, simplifying the repair to a single part. Sierra states that its products are engineered to meet the demands of high-horsepower engines and to hold up in harsh marine conditions, and that they meet or exceed the original equipment part being replaced. This boot is sold as a single unit and is a straightforward, low-cost way to restore a clean ignition connection on outboard and other marine engines using 8mm plug wire.\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 18-5752\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Universal Spark Plug Boot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Terminal Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e 580339\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282244484\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Watercraft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal 8mm spark plug boot; fits applications using 8mm ignition wire.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e580339\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size wire does the Sierra 18-5752 spark plug boot fit?\u003c\/strong\u003e It is sized for 8mm ignition wire, matching the thread and wire diameter used on many marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this boot come with a connector, or do I need to buy one separately?\u003c\/strong\u003e The Sierra 18-5752 ships complete with a terminal connector, so no separate crimp fitting is required to finish the installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5752 boot made for a specific engine brand?\u003c\/strong\u003e No, it is a universal-fit 8mm spark plug boot rather than a boot molded for one specific engine or brand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM equivalent part number for the Sierra 18-5752?\u003c\/strong\u003e 580339 is listed as the OEM equivalent part number for the Sierra 18-5752 spark plug boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5752 spark plug boot weigh?\u003c\/strong\u003e The Sierra 18-5752 weighs 0.07 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this boot on a boat that runs in saltwater?\u003c\/strong\u003e Yes, Sierra states its parts are engineered to hold up in the harsh marine environment, which includes saltwater exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many boots come in one package?\u003c\/strong\u003e One Sierra 18-5752 spark plug boot is included per unit; the quantity is 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this boot work as well as the original equipment part?\u003c\/strong\u003e Sierra states its products meet or exceed the original equipment part they replace, which applies to the 18-5752 boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace a spark plug boot like the 18-5752?\u003c\/strong\u003e A spark plug boot typically needs replacement when it cracks, hardens, or no longer seats tightly, causing a weak or intermittent ignition connection; the 18-5752 is used to restore that seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with the 18-5752?\u003c\/strong\u003e The package includes one universal 8mm spark plug boot with its terminal connector already attached, ready to install on 8mm ignition wire.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988230156507,"sku":"SIE-18-5752","price":5.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5752__18586.1722511725.500.750.jpg?v=1785188653","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5752-universal-8mm-spark-plug-boot-with-terminal-connector-replaces-oem-580339-for-force-yamaha-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}