{"product_id":"marine-grease-gun-3-oz-heavy-duty-all-steel-with-rated-pressure-relief-valve-replaces-mercury-91-74057q6-sierra-18-9783","title":"Sierra Grease Gun 3 Oz, All Steel Construction, Replaces Mercury 91-74057Q6","description":"\u003cp\u003eThe Sierra Grease Gun (18-9783) is a 3 oz. Hand-held grease gun built for marine maintenance tasks that call for precise, small-volume lubrication of fittings, steering components, and other grease points on boats and outboard engines. It features heavy duty all steel construction designed for dependable, long service life in the demanding marine environment, resisting the wear that lighter-duty plastic guns cannot handle. Its compact 3 oz. Capacity makes it a practical choice for touch-up greasing jobs, onboard storage, or as a spare alongside a larger-capacity gun, and it is sold in display packaging for retail presentation. This grease gun is compatible with the same fittings as the OEM Mercury grease gun it replaces, so it drops into existing maintenance routines without needing a different tool or technique. Whether you are servicing steering cables, trim tilt fittings, or other grease nipples around the boat, the all-steel body stands up to repeated use and rough marine storage conditions better than lighter alternatives.\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 18-9783\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 3 oz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Heavy duty all steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Display packaged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Marine Lubricants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999969309\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 91-74057Q6\u003c\/li\u003e\n\u003cli\u003e18-9779\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-9783 grease gun?\u003c\/strong\u003e The Sierra 18-9783 grease gun holds 3 oz. Of grease, making it a compact option for touch-up lubrication jobs on a boat.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-9783 grease gun made of?\u003c\/strong\u003e It has heavy duty all steel construction, built for dependable, long service life in marine conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-9783 grease gun replace a Mercury part?\u003c\/strong\u003e Yes, the Sierra 18-9783 replaces Mercury part number 91-74057Q6.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other part number does the Sierra 18-9783 grease gun cross-reference to?\u003c\/strong\u003e In addition to the Mercury 91-74057Q6, the Sierra 18-9783 grease gun also cross-references to part number 18-9779.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-9783 grease gun weigh?\u003c\/strong\u003e The Sierra 18-9783 grease gun weighs 2.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-9783 grease gun sold individually or in a package?\u003c\/strong\u003e It is sold display packaged, making it suitable for retail shelf presentation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Sierra 18-9783 and 18-9782 grease guns?\u003c\/strong\u003e The 18-9783 holds 3 oz. Of grease, while the related 18-9782 model is the larger 14 oz. Version; both are separate part numbers, so buyers should choose based on capacity needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category does the Sierra 18-9783 grease gun fall under?\u003c\/strong\u003e The Sierra 18-9783 is categorized as a marine lubricant product.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-9783 a genuine aftermarket replacement or an OEM part?\u003c\/strong\u003e The Sierra 18-9783 is an aftermarket grease gun engineered to replace the Mercury 91-74057Q6, built to the same all-steel durability standard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-9783 grease gun?\u003c\/strong\u003e The UPC for the Sierra 18-9783 grease gun is 030999969309.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988437315803,"sku":"SIE-18-9783","price":39.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-9783_lg__57464.1558132394.500.750.jpg?v=1785329163","url":"https:\/\/www.goodvibesmarina.com\/products\/marine-grease-gun-3-oz-heavy-duty-all-steel-with-rated-pressure-relief-valve-replaces-mercury-91-74057q6-sierra-18-9783","provider":"Good Vibes Marina","version":"1.0","type":"link"}