{"product_id":"tapered-insert-tool-for-mercruiser-bravo-drives-replaces-mercury-91-43579-sierra-18-9844","title":"Sierra Tapered Insert Tool 18-9844, Replaces Mercury Marine 91-43579, for Bravo Drive Units","description":"\u003cp\u003eThe Sierra Tapered Insert Tool (18-9844) is a specialty service tool used to install the tapered insert retainer into the water inlet hose on Bravo drive units. This is a precision-purpose tool for technicians and DIY boaters performing drive unit service, where correctly seating the tapered insert retainer is necessary for a proper water inlet hose fit. Rather than improvising with generic tools that can damage the retainer or leave it seated incorrectly, this tool is machined to match the retainer geometry so it installs cleanly and consistently.\u003c\/p\u003e\u003cp\u003eIts compact, machined design makes it easy to keep in a Bravo service tool kit alongside other drive unit specialty tools, and it directly cross-references to Mercury Marine part 91-43579, so it can be ordered as a drop-in equivalent for that OEM tool number.\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 18-9844\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Tapered Insert Tool\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Installs tapered insert retainer into water inlet hose on all Bravo drive units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior\/Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 7.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282109523\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eAll Bravo drive units\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 91-43579\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-9844 tool used for?\u003c\/strong\u003e It installs the tapered insert retainer into the water inlet hose on Bravo drive units, ensuring the retainer seats correctly during drive unit service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-9844 replace a Mercury Marine part number?\u003c\/strong\u003e Yes, the Sierra 18-9844 Tapered Insert Tool is a direct cross-reference to Mercury Marine part 91-43579.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat drive units does this tool fit?\u003c\/strong\u003e The 18-9844 Tapered Insert Tool is designed for use on all Bravo drive units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-9844 Tapered Insert Tool?\u003c\/strong\u003e The tool measures 0.39 x 0.39 x 0.39 inches, a compact size intended to fit easily in a Bravo drive service tool kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-9844 tool made from or finished with?\u003c\/strong\u003e The Sierra 18-9844 Tapered Insert Tool has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-9844 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e 18-9844 is the Sierra manufacturer part number itself, sold as Sierra's cross-reference equivalent to Mercury Marine 91-43579.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use a generic tool instead of the 18-9844 Tapered Insert Tool?\u003c\/strong\u003e The 18-9844 is machined specifically to install the tapered insert retainer on Bravo drive units, so using it instead of an improvised tool helps avoid damaging or misseating the retainer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-9844 come with other tools included?\u003c\/strong\u003e 18-9844 is sold as the single Tapered Insert Tool; it does not include other Bravo drive service tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-9844 weigh?\u003c\/strong\u003e The Sierra Tapered Insert Tool 18-9844 weighs 7.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat Bravo drive service task requires this tool?\u003c\/strong\u003e Installing the tapered insert retainer into the water inlet hose on a Bravo drive unit requires the 18-9844 Tapered Insert Tool to seat it correctly.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988438102235,"sku":"SIE-18-9844","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-9844_lg__67521.1558132955.500.750.jpg?v=1785189208","url":"https:\/\/www.goodvibesmarina.com\/products\/tapered-insert-tool-for-mercruiser-bravo-drives-replaces-mercury-91-43579-sierra-18-9844","provider":"Good Vibes Marina","version":"1.0","type":"link"}