{"product_id":"mercury-pump-adapter-91-883704k03","title":"Mercury – Quicksilver Gear Lube Pump Adapter | Maintenance Tools | Marine-Grade Construction | 883704K03","description":"\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Quicksilver Gear Lube Pump Adapter | Maintenance Tools | Marine-Grade Construction | 883704K03\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf you’ve ever serviced your own lower unit, you know there’s something satisfying about doing the job right — clean pump strokes, no stripped threads, no leaks dribbling down the skeg. It’s one of those maintenance moments that makes you feel \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003econnected\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to your boat. A simple, reliable adapter turns that task from a headache into an easy routine.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThis Mercury Marine part \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ebrings that\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e confidence \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eto\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the job.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It gives you the peace of mind that your gear lube pump will thread in smoothly and seal tightly, so you can focus on taking care of your engine instead of fighting with mismatched fittings.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eConverts a standard \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e3\/8-16\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e gear lube pump tube to fit \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e8x1.25 metric\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e gear lube fill holes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMarine-grade metal construction built for durability and steady threading\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePrecision-machined threads ensure a tight, secure seal during gear lube service\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompact, corrosion-resistant design for long-term use in marine environments\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eInstalls quickly and easily with hand tightening\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFits Mercury and Mariner outboards:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e4–5 HP (1987 and newer)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e4\/5\/6 HP FourStroke\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e225 HP EFI FourStroke\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e2005+ 8\/9.9 HP FourStroke\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e2006+ 25\/30 HP EFI FourStroke\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e15\/20 HP FourStroke (351 cc)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWorks on all Mercury and Mariner outboards of Japanese origin\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with all outboards requiring an \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e8x1.25 metric threaded\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e gear lube fill port\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIncludes compatibility with Nissan, Yamaha, Tohatsu, and Honda outboards using the same metric threading\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for anglers, weekend boaters, tender owners, and anyone doing their own gear lube changes\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA good adapter shouldn’t make you think — it should just work. That’s \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eexactly\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e how this Mercury Marine part feels the moment you thread it into a metric gear lube port. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe connection seats \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esmooth\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e and \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etight\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, giving you that secure, locked-in feeling without wobble or guesswork.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere’s no slipping, no cross-threading, no “almost fits.” Just a clean, steady seal that lets you pump gear lube exactly where it needs to go. The precision threads prevent leaks during pumping, and the corrosion-resistant finish \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eholds up against\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e salt, moisture, and years of marine use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf you’ve ever serviced multiple engines — \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eespecially\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e a mix of American and Japanese designs — you know how \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003euseful\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e this adapter is. It keeps your maintenance clean, efficient, and frustration-free. And once you’ve used it a few times, it becomes one of those small tools you don’t leave the dock without.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere are plenty of cheap adapters \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eout there\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, but very few deliver the fit and durability of a \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etrue\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Mercury Marine part.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e With \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003epart number 883704K03\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, you get threading that feels right the first time, every time. No soft metal. No poorly cut threads. No leaks.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOEM means:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to exact Mercury standards\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLong-term reliability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA perfect match for Mercury, Mariner, and Japanese-origin models\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePeace of mind during every lower unit service\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf a fellow boater asked which adapter to trust, this is the one I’d recommend without hesitation. It simply gets the job done correctly — and that’s what counts.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the Gear Lube Pump Adapter 883704K03 fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits Mercury and Mariner 4–5 HP (1987+), 4\/5\/6 HP FourStroke, 225 HP EFI FourStroke, 8–30 HP FourStroke models (various years), and all Japanese-origin Mercury outboards.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes this adapter better than aftermarket versions?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e The precision machining and marine-grade durability ensure a smooth fit and reliable seal every time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHow do I know if\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e this \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eright\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e adapter for my setup?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e If your gear lube fill hole is metric \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e8x1.25\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, this is the correct adapter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can I use it in both saltwater and freshwater environments?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely — the corrosion-resistant metal is designed for harsh marine conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. Hand-thread it onto your pump tube, connect it to the fill port, and you’re ready to pump.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46933970485539,"sku":"91-883704K03","price":8.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/883704K03_4.jpg?v=1761744034","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-pump-adapter-91-883704k03","provider":"PartsVu","version":"1.0","type":"link"}