{"product_id":"threaded-nozzle-for-marine-pressure-and-vacuum-tester-sierra-18-99543-replacement-tester-nozzle","title":"Sierra Threaded Nozzle 18-99543 for Pressure and Vacuum Tester","description":"\u003cp\u003eThe Sierra 18-99543 is a threaded nozzle designed as a replacement accessory for pressure and vacuum testing equipment used in marine engine service. It threads securely onto a compatible tester body, allowing technicians to apply and hold pressure or vacuum on fuel system and cooling system components during diagnostic checks. Because it is a small, low-cost wear item, it is a practical part to keep on hand so a tester does not sit idle waiting on a lost or damaged nozzle.\u003c\/p\u003e\u003cp\u003eThis nozzle is sized for a threaded connection, letting it seat firmly on the tester without slipping under pressure, which helps keep readings accurate during leak-down and pressure testing procedures. At just 0.1 pounds, it adds negligible weight to a tool kit or tackle box, making it easy to store as a spare alongside other diagnostic accessories.\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 18-99543\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Threaded Nozzle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Pressure and Vacuum Tester Accessory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282395759\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-99543 used for?\u003c\/strong\u003e The Sierra 18-99543 is a threaded nozzle that attaches to a pressure and vacuum tester, letting the tester hold pressure or vacuum on a fuel or cooling system component during a diagnostic check.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 18-99543 nozzle attach to the tester?\u003c\/strong\u003e It uses a threaded connection that screws onto the tester body, which helps it stay seated and hold a consistent seal while pressure or vacuum is applied.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-99543 weigh?\u003c\/strong\u003e It weighs 0.1 pounds, making it a lightweight accessory that is easy to store as a spare with other testing tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99543 sold as a single nozzle or a full tester kit?\u003c\/strong\u003e The 18-99543 is the threaded nozzle component itself, sold as a replacement or spare part rather than a complete tester kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would someone need a spare threaded nozzle like the 18-99543?\u003c\/strong\u003e Nozzles on pressure and vacuum testers are small parts that can be lost or damaged with regular shop use, so having a Sierra 18-99543 on hand keeps a tester ready for use without downtime.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat brand is the 18-99543 nozzle?\u003c\/strong\u003e It is manufactured by Sierra and identified by part number 18-99543.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99543 nozzle require any tools to install?\u003c\/strong\u003e No special tools are needed; the Sierra 18-99543 threads onto the tester body by hand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99543 a genuine Sierra part?\u003c\/strong\u003e Yes, the 18-99543 is a genuine Sierra part number, not a generic substitute.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988445966555,"sku":"SIE-18-99543","price":14.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-551-34TN_lg__68504.1657031229.500.750.jpg?v=1785189210","url":"https:\/\/www.goodvibesmarina.com\/products\/threaded-nozzle-for-marine-pressure-and-vacuum-tester-sierra-18-99543-replacement-tester-nozzle","provider":"Good Vibes Marina","version":"1.0","type":"link"}