{"product_id":"turning-point-propellers-31501741-express-mach4-propeller-14-5x17-4-blade-stainless-steel-lh-rotation-708-31501741","title":"Express Mach4 Propeller 14.5x17 – 4-Blade Stainless Steel, LH Rotation | 90–300+hp (4.75\" Gearcase)","description":"\u003ch2\u003eExpress Mach4 Propeller — 14.5 x 17, 4-Blade Stainless Steel, Left-Hand Rotation\u003c\/h2\u003e\n\u003cp\u003eThe Express Mach4 is a premium 4-blade stainless steel propeller engineered with a patented Dual Geometry design — delivering the hole shot, handling, and load-carrying advantages of a 4-blade without the top-end speed penalty that typically comes with it. Built for high-horsepower outboards and sterndrives from 90 to 300+hp with 4.75-inch gearcases.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis is the left-hand (counter-rotation) version.\u003c\/strong\u003e For twin-engine setups, pair with the \u003ca href=\"\/products\/turning-point-propellers-31501731-express-mach4-propeller-14-5x17-4-blade-stainless-steel-rh-rotation-standard-708-31501731\"\u003eExpress Mach4 14.5x17 RH Rotation\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eBest Use Case\u003c\/h3\u003e\n\u003cp\u003eThe 17-pitch Mach4 is the ideal all-around choice for watersports boats, tri-toons, bay boats, and sterndrive applications where you need strong acceleration, confident cornering, and the ability to carry a full load without losing top-end speed. It’s particularly well-suited to twin-engine setups running counter-rotating props, and to any application where stern lift and rough-water stability matter as much as straight-line speed.\u003c\/p\u003e\n\n\u003ch3\u003eDual Geometry — How It Works\u003c\/h3\u003e\n\u003cp\u003eMost 4-blade props sacrifice top speed for better hole shot. The Mach4 solves this with two distinct blade geometries in a single hub: two blades use an aggressive variable-rake design for explosive acceleration and cornering grip, while the other two use an offshore-style design for high-speed efficiency and maximum stern lift. The result is a 4-blade that matches 3-blade top-end speed while outperforming it in every other condition.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTP17™ Proprietary Stainless Steel\u003c\/strong\u003e — Formulated specifically for the Mach4 series. 20% higher chromium content than standard stainless for better corrosion resistance and a higher-gloss finish. Nearly 250% stronger and 5x more durable than conventional stainless steel alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Blade Dual Geometry Design\u003c\/strong\u003e — Two blade geometries in one prop: aggressive rake for hole shot and handling, offshore profile for speed and stern lift. No top-end speed loss versus a comparable 3-blade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Hull Lift\u003c\/strong\u003e — Raises the entire hull higher out of the water, reducing wetted surface and maintaining top speed even under heavy loads where a 3-blade can lose up to 3 mph.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Rough-Water Stability\u003c\/strong\u003e — The 4-blade configuration damps out chop and improves tracking in confused seas, reducing driver fatigue on longer runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Exhaust Ports\u003c\/strong\u003e — Oversized exhaust flow pathways reduce back-pressure and free up horsepower at wide-open throttle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Brands\u003c\/strong\u003e — Fits COX, Evinrude, Honda, Johnson, Mariner, Mercury, MerCruiser, Nissan, OMC, OXE, Parsun, Suzuki, Tohatsu, Volvo Penta, and Yamaha outboards and sterndrives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 31501741\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter x Pitch:\u003c\/strong\u003e 14.5\" x 17\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlades:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e TP17™ Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e Left-Hand (Counter-Rotation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGearcase:\u003c\/strong\u003e 4.75\" (large)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Range:\u003c\/strong\u003e 90–300+hp outboards \u0026amp; sterndrives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub System:\u003c\/strong\u003e 500-Series hub kit (under 200hp) or 700-Series hub kit (200hp+) required — sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHub kit required — not included.\u003c\/strong\u003e This propeller requires either a 500-Series or 700-Series hub kit depending on your engine’s horsepower. Confirm your engine make, model, and year against the application chart to select the correct kit before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLH rotation — confirm your application.\u003c\/strong\u003e Left-hand rotation props are used on the port side of counter-rotating twin-engine setups, or on specific single-engine applications that call for counter-rotation. If you’re running a single standard outboard, you almost certainly need the RH version. See the \u003ca href=\"\/products\/turning-point-propellers-31501731-express-mach4-propeller-14-5x17-4-blade-stainless-steel-rh-rotation-standard-708-31501731\"\u003eExpress Mach4 14.5x17 RH Rotation\u003c\/a\u003e if unsure.\u003c\/p\u003e\n\u003cp\u003eIf you’re choosing between pitch options, 17-pitch is the most versatile starting point for this gearcase family. Step down to a 15-pitch for more aggressive acceleration and load carrying, or up to a 19-pitch for higher top-end speed on lighter, faster hulls. Browse the Mach4 lineup by pitch:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/turning-point-propellers-31501532-express-mach4-propeller-15x15-4-blade-stainless-steel-rh-rotation-standard-708-31501532\"\u003eExpress Mach4 15 x 15 — 4-Blade SS, RH\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/turning-point-propellers-31501542-express-mach4-propeller-15x15-4-blade-stainless-steel-lh-rotation-708-31501542\"\u003eExpress Mach4 15 x 15 — 4-Blade SS, LH\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/turning-point-propellers-31501731-express-mach4-propeller-14-5x17-4-blade-stainless-steel-rh-rotation-standard-708-31501731\"\u003eExpress Mach4 14.5 x 17 — 4-Blade SS, RH\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/turning-point-propellers-31501931-express-mach4-propeller-14x19-4-blade-stainless-steel-rh-rotation-standard-708-31501931\"\u003eExpress Mach4 14 x 19 — 4-Blade SS, RH\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/turning-point-propellers-31502131-express-mach4-propeller-14x21-4-blade-stainless-steel-rh-rotation-standard-708-31502131\"\u003eExpress Mach4 14 x 21 — 4-Blade SS, RH\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/turning-point-propellers-31502331-express-mach4-propeller-14x23-4-blade-stainless-steel-rh-rotation-standard-708-31502331\"\u003eExpress Mach4 14 x 23 — 4-Blade SS, RH\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlso available in the 3-blade Mach3 configuration for this pitch: \u003ca href=\"\/products\/turning-point-propellers-31501722-express-mach3-propeller-14-25x17-3-blade-stainless-steel-lh-rotation-708-31501722\"\u003eExpress Mach3 14.25 x 17 — 3-Blade SS, LH\u003c\/a\u003e.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51215129444388,"sku":"708-31501741","price":852.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/d56e8aa3-86d4-4e0c-bf37-54da6925ded3.png?v=1786233042","url":"https:\/\/marisolmarine.com\/products\/turning-point-propellers-31501741-express-mach4-propeller-14-5x17-4-blade-stainless-steel-lh-rotation-708-31501741","provider":"Marisol Marine Company","version":"1.0","type":"link"}