{"product_id":"mercury-black-max-propeller-10-6-x-12-73134a45","title":"Mercury Black Max Propeller 10.6 x 12 | 73134A45","description":"\u003ch2\u003eMercury Black Max Propeller 10.6 x 12 — Part #73134A45\u003c\/h2\u003e\n\n\u003cp\u003eThe Mercury Black Max 73134A45 is a genuine OEM 3-blade aluminum propeller sized at 10.6\" diameter and 12\" pitch, designed for Mercury and Mariner outboards in the 25–60 HP range. Built from Mercalloy aluminum with a Phantom Black corrosion-resistant finish, the Black Max line delivers dependable everyday performance for fishing boats, small runabouts, and outboard-powered utility craft. This propeller includes a Flo-Torq Reflex hub kit (835257K12) in the box — ready to install.\u003c\/p\u003e\n\n\u003ch3\u003ePart Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 73134A45 (full Mercury number: 48-73134A45)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Black Max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e 3-Blade Aluminum Outboard Propeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 10.6 in. (10-5\/8 in.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch:\u003c\/strong\u003e 12 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlades:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Mercalloy Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e Right-hand (standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Phantom Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 745061018341\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury \/ Mariner 25–30 HP FourStroke BigFoot \/ Command Thrust outboards\u003c\/li\u003e\n\u003cli\u003eMercury 30 HP TwoStroke outboards\u003c\/li\u003e\n\u003cli\u003eMercury 30 HP FourStroke, 2005 and earlier\u003c\/li\u003e\n\u003cli\u003eMercury \/ Mariner 40–60 HP outboards\u003c\/li\u003e\n\u003cli\u003eSelected Mercury SeaPro and Marathon models within the same gearcase family\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment note:\u003c\/strong\u003e Always confirm engine model, gearcase, propeller-shaft configuration, and your current propeller size before ordering. Correct pitch also depends on boat weight, load, hull type, and your engine's recommended wide-open-throttle RPM range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury Black Max 73134A45 propeller\u003c\/li\u003e\n\u003cli\u003eFlo-Torq Reflex hub kit 835257K12 (included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: 10.6 in. (10-5\/8 in.)\u003c\/li\u003e\n\u003cli\u003ePitch: 12 in.\u003c\/li\u003e\n\u003cli\u003eApproximate weight: 2.2 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem\u003c\/h3\u003e\n\u003cp\u003eOutboard propulsion — propeller and hub assembly for Mercury \/ Mariner lower gearcase applications in the 25–60 HP class.\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Replace Your Propeller\u003c\/h3\u003e\n\u003cp\u003eReplace the propeller if blades are bent, cracked, heavily nicked, or distorted, or if hub damage or excessive vibration is present. Propeller damage can affect acceleration, engine RPM, fuel economy, and gearcase loading.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInspect the propeller shaft, splines, thrust washer, hub components, and propeller nut hardware before installation\u003c\/li\u003e\n\u003cli\u003eApply the specified marine lubricant to the shaft as required\u003c\/li\u003e\n\u003cli\u003eTorque the propeller nut according to the applicable Mercury service procedure\u003c\/li\u003e\n\u003cli\u003eThe included Flo-Torq Reflex hub kit must be correctly assembled — follow Mercury's hub installation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eService Interval\u003c\/h3\u003e\n\u003cp\u003eInspect the propeller and hub assembly at every season start and after any impact event (striking debris, running aground). Replace the thrust washer and check hub integrity any time the propeller is removed for service.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Parts \u0026amp; Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mercury-quicksilver-flo-torq-ii-hub-kit-835257k6\"\u003eMercury Quicksilver Flo-Torq II Hub Kit 835257K6\u003c\/a\u003e — compatible hub kit for other gearcase configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mercury-quicksilver-flo-torq-ii-hub-kit-835257k1\"\u003eMercury Quicksilver Flo-Torq II Hub Kit 835257K1\u003c\/a\u003e — Flo-Torq II hub for smaller outboard applications\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mercury-black-max-propeller-10-4x14-816706a45\"\u003eMercury Black Max Propeller 10.4 x 14 — 816706A45\u003c\/a\u003e — same family, higher pitch option\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mercury-black-max-propeller-9x9-828156a12\"\u003eMercury Black Max Propeller 9 x 9 — 828156A12\u003c\/a\u003e — smaller diameter\/pitch for lighter applications\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/propellers-aluminum-stainless-steel-folding\"\u003eBrowse all Propellers — Aluminum, Stainless \u0026amp; Folding\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/propeller-hardware-nuts-washers-hubs-spacers-cones\"\u003ePropeller Hardware — Nuts, Washers, Hubs \u0026amp; Cones\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes this propeller include a hub kit?\u003c\/strong\u003e Yes — the Flo-Torq Reflex hub kit (835257K12) is included in the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the correct propeller pitch for my engine?\u003c\/strong\u003e Pitch selection depends on your engine's recommended WOT RPM range, boat weight, load, and hull type. A qualified marine dealer can help determine the right pitch if you're unsure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs right-hand rotation correct for my outboard?\u003c\/strong\u003e Most single-engine outboard installations use right-hand rotation. Confirm your current propeller's rotation direction before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I use this on a counter-rotating twin setup?\u003c\/strong\u003e No — 73134A45 is right-hand rotation only and is not suitable for counter-rotation applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat if my boat feels sluggish after fitting a 12-pitch prop?\u003c\/strong\u003e If WOT RPM drops below the engine's specified range, pitch may be too high for your load. Consider a 10 or 11-pitch in the same diameter family.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe 73134A45 is one of our most ordered small-outboard propellers — it's the go-to replacement for anglers running 25–60 HP Mercury or Mariner motors on aluminum fishing boats and jon boats in the 14–18 ft range. The most common issue we see is customers ordering by engine HP alone without checking their current propeller's diameter and pitch. Always cross-reference the 10.6\" diameter and 12\" pitch against your existing prop before purchasing. If your engine is consistently over-revving at WOT, a step up in pitch is worth considering — we'd suggest looking at the \u003ca href=\"\/products\/mercury-black-max-propeller-10-4x14-816706a45\"\u003e10.4 x 14\u003c\/a\u003e in the same Black Max family.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":51324682436644,"sku":"73134A45","price":349.61,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/ed4778fa-af96-4ed1-bc7e-7d50beb67713.png?v=1788239205","url":"https:\/\/marisolmarine.com\/products\/mercury-black-max-propeller-10-6-x-12-73134a45","provider":"Marisol Marine Company","version":"1.0","type":"link"}