{"product_id":"sierra-18-99538-threaded-gearcase-filler-nozzle-for-tohatsu-outboard-lower-unit-gear-oil","title":"Sierra 18-99538 Threaded Gearcase Filler Nozzle - Fits Tohatsu Outboards, Equivalent to CDI Electronics 551-33TN","description":"\u003cp\u003eThe Sierra 18-99538 Threaded Gearcase Filler Nozzle is a threaded fill nozzle used for adding gear lubricant to an outboard lower unit gearcase. It threads onto a standard gear oil bottle, letting you dispense oil directly into the gearcase fill port without the mess of a loose spout or funnel. This is a simple, purpose-built specialty tool for routine outboard gearcase oil changes and top-offs, a maintenance task most outboard owners perform themselves rather than through a dealer service department. The nozzle is compatible with Tohatsu outboard engines and is equivalent to the CDI Electronics part number 551-33TN, so it can be used as a direct replacement or spare for that part. Because it is a threaded fitting rather than a friction-fit spout, it seats securely on the oil bottle during use, reducing spills and letting you control the flow as you fill the gearcase to the proper level. Its compact size and light weight make it easy to keep in a toolbox or tackle bag alongside other routine maintenance tools.\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 18-99538\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Threaded Nozzle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Specialty Tools\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 808282394936\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Reference:\u003c\/strong\u003e CDI Electronics 551-33TN\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eTohatsu outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eCDI Electronics 551-33TN\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-99538 nozzle used for?\u003c\/strong\u003e It is a threaded gearcase filler nozzle used to add gear lubricant to an outboard lower unit gearcase during routine oil changes or top-offs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99538 nozzle fit Tohatsu outboards?\u003c\/strong\u003e Yes, the Sierra 18-99538 threaded nozzle is compatible with Tohatsu outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this the same as the CDI Electronics 551-33TN nozzle?\u003c\/strong\u003e Sierra part 18-99538 is equivalent to CDI Electronics part number 551-33TN, so it can be used in place of that part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99538 nozzle weigh?\u003c\/strong\u003e The Sierra 18-99538 threaded gearcase filler nozzle weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the nozzle attach during use?\u003c\/strong\u003e It threads directly onto a gear oil bottle, giving a secure connection for dispensing oil into the gearcase fill port instead of relying on a loose-fitting spout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of tool is the 18-99538?\u003c\/strong\u003e The Sierra 18-99538 is classified as a specialty tool, specifically a threaded gearcase oil filler nozzle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this nozzle be used with any gear oil bottle?\u003c\/strong\u003e The Sierra 18-99538 is a threaded nozzle designed to thread onto a gear oil bottle for filling an outboard gearcase; it is not a universal friction-fit spout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-99538?\u003c\/strong\u003e This listing includes one Sierra 18-99538 threaded gearcase filler nozzle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99538 nozzle genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-99538 is a Sierra branded part, sold under Sierra's own part number as a direct equivalent to the CDI Electronics 551-33TN nozzle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is associated with the Sierra 18-99538?\u003c\/strong\u003e The Sierra 18-99538 threaded gearcase filler nozzle carries UPC 808282394936.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988446425307,"sku":"SIE-18-99538","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-551-33TN_lg__78670.1558112315.500.750.jpg?v=1785188275","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-99538-threaded-gearcase-filler-nozzle-for-tohatsu-outboard-lower-unit-gear-oil","provider":"Good Vibes Marina","version":"1.0","type":"link"}