{"product_id":"young-marine-aluminum-outboard-propeller-for-mercury","title":"Young Marine aluminum outboard propeller for Mercury 13-spline, Size D: 10 1\/2\" P: 13\", 30-70 HP durable replacement","description":"\u003cp\u003e\u003cstrong\u003eHigh-strength Young Marine 10 1\/2\" x 13\" aluminum propeller built for Mercury 13-spline outboards (48-816704A45), engineered as a reliable aftermarket replacement for 30–70HP engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Young Marine propeller is an aftermarket aluminum replacement designed to match the diameter and pitch of original Mercury props while offering durable blades and consistent performance for small to mid-range outboard motors. Finished to resist corrosion and balanced for smoother rotation, it’s intended for 13-spline Mercury lower units and covers a broad horsepower range, making it a practical option when an OEM propeller is damaged, missing, or when you need a direct-fit spare.\u003c\/p\u003e\n\n\u003ch3\u003eWill this propeller fit my Mercury outboard?\u003c\/h3\u003e\n\u003cp\u003eCompatibility depends on lower unit spline count and engine horsepower. This model fits Mercury outboards that use a 13-spline prop shaft and engines rated between 30 and 70 HP. Always verify your engine’s spline type and the OEM part number before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Mercury 13-spline lower units.\u003c\/li\u003e\n  \u003cli\u003eIntended for 30–70 horsepower outboards.\u003c\/li\u003e\n  \u003cli\u003eReference number corresponds to 48-816704A45 sizing.\u003c\/li\u003e\n  \u003cli\u003eDiameter 10 1\/2\" and pitch 13\" match common OEM dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the aluminum construction affect performance and maintenance?\u003c\/h3\u003e\n\u003cp\u003eAluminum props are lighter and more affordable than stainless steel alternatives and generally repairable after minor impacts. They offer efficient cruising and acceleration suitable for recreational boating, but they are more prone to bending than steel props under heavy load or frequent grounding.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-quality aluminum provides corrosion resistance and lower weight.\u003c\/li\u003e\n  \u003cli\u003eImproved blade design for steady thrust and reduced vibration.\u003c\/li\u003e\n  \u003cli\u003eAffordable aftermarket option with OEM-matching geometry.\u003c\/li\u003e\n  \u003cli\u003eRepairable for small dings; replace if blades are severely bent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance can I expect on 30–70HP engines?\u003c\/h3\u003e\n\u003cp\u003eWith a 10 1\/2\" diameter and 13\" pitch, this propeller balances acceleration and top-end speed for small to mid-range outboards. It’s suited to planing hulls and typical recreational loads; exact speed and acceleration will vary with boat weight, trim, and engine tuning.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGood compromise between hole-shot acceleration and cruising speed.\u003c\/li\u003e\n  \u003cli\u003eStable handling due to balanced blade geometry.\u003c\/li\u003e\n  \u003cli\u003eWorks well on planing boats under normal load conditions.\u003c\/li\u003e\n  \u003cli\u003ePerformance closely mirrors OEM props with same spec.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and returns?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable changing a prop: match the spline count, slide onto the shaft, secure with the retained hardware and cotter pin or locking nut per manufacturer instructions. This item is sold as an aftermarket replacement and returns are accepted if the part doesn’t meet your needs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck shaft spline count (13-spline) before installation.\u003c\/li\u003e\n  \u003cli\u003eInstall with correct hub hardware and torque to spec.\u003c\/li\u003e\n  \u003cli\u003eAftermarket product designed to match OEM diameter\/pitch.\u003c\/li\u003e\n  \u003cli\u003eReturn policy accepted—inspect fit and function upon receipt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boat owners with Mercury outboards who need a dependable, cost-effective replacement propeller for engines in the 30–70HP range. It suits weekend anglers, recreational boaters, and anyone who wants an OEM-dimension aftermarket prop with aluminum durability and balanced performance. If your engine uses a 13-spline shaft and your boat requires a 10 1\/2\" x 13\" prop, this Young Marine model is a direct-fit alternative to help restore thrust and drivability.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this propeller match OEM dimensions?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It matches the OEM diameter (10 1\/2\") and pitch (13\") for the referenced Mercury applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it fit my Mercury lower unit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits Mercury lower units with a 13-spline prop shaft and engines rated 30–70 HP; verify your shaft spline before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Young Marine","offers":[{"title":"Default Title","offer_id":48029354721441,"sku":"B078M3MKSL","price":158.17,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/young-marine-front-view-propeller.jpg?v=1791389262","url":"https:\/\/canadiansporting.ca\/products\/young-marine-aluminum-outboard-propeller-for-mercury","provider":"Canadian Sporting","version":"1.0","type":"link"}