{"product_id":"mercury-black-max-aluminum-propeller-3-blade-40-60-hp-command-thrust-75-125-hp-with-a-4-25-gearcase-all-years-12-8-dia-21-pitch-48-77348a45","title":"Mercury – Black Max Propeller | 12.75\" Diameter x 21\" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | 77348A45","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Black Max 3-Blade Aluminum Propeller | 12.75\" Diameter x 21\" Pitch | Right-Hand Rotation | 3-Blade | Aluminum | Phantom Black Finish | 77348A45\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Every boater knows that feeling when every\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ething clicks—when the engine hums, the throttle responds, and the boat lifts effortlessly onto plane\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThat’s the kind of connection you get with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury Black Max 3-Blade Aluminum Propeller (Part Number 77348A45)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e. It’s built for balance, for responsiveness, and for that quiet confidence you feel when your boat moves precisely the way you expect it to. Whether you’re cruising open water or threading through narrow channels, this prop delivers performance that feels natural and refined\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDiameter \u0026amp; Pitch:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e 12.75\" diameter x 21\" pitch\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eRotation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Right-Hand\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBlade Count:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e 3-Blade design for smooth lift and steady thrust\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Patented Mercalloy aluminum alloy for strength with built-in flexibility\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFinish:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Mercury Phantom Black glossy enamel for superior corrosion resistance\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHub System:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Includes Flo-Torq II Hub Kit 835257K1 to protect your drivetrain from impact damag\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ee\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesign Details:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Precision-engineered for quick acceleration, consistent grip, and vibration-free cruising\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury and Mariner 40–60 HP BigFoot\/Command Thrust (all years)\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury and Mariner 75–125 HP (1978 and newer)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e outboards\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eExcellent fit for \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003erunabouts, pontoons, fishing boats, and light cruiser\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003es\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerfect for boaters who want smooth cruising with solid top-end performance and fuel efficiency\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e The \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBlack Max 77348A45\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e offers that seamless blend of power and finesse that makes boating such a pleasure. Throttle up, and you’ll feel how smoothly it grabs the water, giving you quick acceleration and efficient lift onto the plan\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ee.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Once you’re up to speed, the prop stays locked in with a clean, stable feel, no slipping, no chatter, just smooth, steady thrust. The 21-pitch setup gives you great top-end speed without sacrificing midrange response, making it ideal for those who like to stretch their boat’s legs across open water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury’s \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercalloy aluminum alloy\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e provides the perfect balance between strength and flexibility. It’s tough enough to stand up to years of use, yet forgiving enough to absorb minor impacts that would ruin a stiffer prop. The \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePhantom Black enamel finish\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e resists corrosion, keeping it sharp whether you’re running freshwater lakes or salty coastal bays. With low maintenance and high reliability, it’s the kind of prop you install once and enjoy season after season.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"166\" data-end=\"224\"\u003e\u003cstrong data-start=\"170\" data-end=\"224\"\u003eWhy is this prop a strong choice vs. alternatives?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"226\" data-end=\"846\"\u003e\n\u003cli data-start=\"226\" data-end=\"370\"\u003e\n\u003cp data-start=\"228\" data-end=\"370\"\u003e\u003cstrong data-start=\"228\" data-end=\"252\"\u003eMercury OEM quality:\u003c\/strong\u003e Designed and built by Mercury’s own engineers, ensuring perfect pitch, balance, and compatibility with your engine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"371\" data-end=\"527\"\u003e\n\u003cp data-start=\"373\" data-end=\"527\"\u003e\u003cstrong data-start=\"373\" data-end=\"407\"\u003eReliable and easy to maintain:\u003c\/strong\u003e Crafted for real-world boating, durable, low-maintenance, and ready for season after season of dependable performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"528\" data-end=\"676\"\u003e\n\u003cp data-start=\"530\" data-end=\"676\"\u003e\u003cstrong data-start=\"530\" data-end=\"563\"\u003eCost-effective vs. stainless:\u003c\/strong\u003e Delivers smooth, confident handling and acceleration at a fraction of the cost of a stainless-steel propeller.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"677\" data-end=\"846\"\u003e\n\u003cp data-start=\"679\" data-end=\"846\"\u003e\u003cstrong data-start=\"679\" data-end=\"720\"\u003eVersatile fit across multiple setups:\u003c\/strong\u003e Ideal for a wide range of boats and outboards, offering consistent performance whether you’re cruising, fishing, or towing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ Sect\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eio\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003en\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines does the Black Max 77348A45 fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It’s made for Mercury and Mariner 40–60 HP BigFoot\/Command Thrust (all years) and 75–125 HP (1978 and newer) outboards.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes this propeller different from other Mercury options?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e The Black Max stands out for its Mercalloy aluminum construction, combining durability with slight flex to handle minor impacts. Its Flo-Torq II Hub System reduces vibration and protects your drivetrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know if this pitch or size is right for my boat?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e A 21-pitch prop is excellent if you’re looking for more top-end speed and efficient cruising. Check your current prop markings or owner’s manual to confirm compatibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can this prop be used in both saltwater and freshwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. The Phantom Black enamel finish is corrosion-resistant, maintaining performance and appearance in all water conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: What hub system does it use?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It includes the \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFlo-Torq II Hub Kit 835257K1\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, designed to absorb shock, reduce vibration, and safeguard your prop shaft from impact damage.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940080013603,"sku":"48-77348A45","price":210.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/77348a45_main.jpg?v=1760631169","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-black-max-aluminum-propeller-3-blade-40-60-hp-command-thrust-75-125-hp-with-a-4-25-gearcase-all-years-12-8-dia-21-pitch-48-77348a45","provider":"PartsVu","version":"1.0","type":"link"}