{"product_id":"young-props-14x21-boat-propeller-for-mercruiser-alpha-bravo","title":"YOUNG PROPS boat propeller 14x21 4-blade 15-tooth RH for Mercruiser Alpha\/Bravo One — aluminum, hub kit included","description":"\u003cp\u003e\u003cstrong\u003eThe YOUNG PROPS 14x21 4-blade aluminum propeller is a right-hand, 15-tooth replacement designed to restore performance on Mercruiser Alpha\/Bravo One drives and Mercury 135–300HP outboards.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis aluminum propeller pairs a 14-inch diameter with a 21-inch pitch and four blades to balance top speed, acceleration and handling for recreational and work boats. Built from alloy-aluminum and inspected under strict quality controls, it substitutes for OEM reference 48-8M0084496 and suits a broad range of Mercury and Mercruiser applications. A complete hub kit and installation hardware are included to make swapouts straightforward.\u003c\/p\u003e\n\n\u003ch3\u003eWhat engines and drives will this propeller fit?\u003c\/h3\u003e\n\u003cp\u003eThis prop is intended for Mercruiser Alpha and Bravo One drives as well as many Mercury outboards in the 135–300 HP range. Check spline\/tooth count and rotation to confirm compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for right-hand rotation (RH) applications.\u003c\/li\u003e\n  \u003cli\u003e15-tooth spline matches specified lower units and drives.\u003c\/li\u003e\n  \u003cli\u003eCommon replacement for OEM 48-8M0084496 reference numbers.\u003c\/li\u003e\n  \u003cli\u003eSuitable across many Mercury\/Mercruiser models within 135–300 HP.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does a 14x21, 4-blade design affect performance?\u003c\/h3\u003e\n\u003cp\u003eThe combination of 14-inch diameter and 21-inch pitch provides a compromise between straight-line speed and pulling power. Adding a fourth blade increases bite in turns and improves acceleration, helping when you’re accelerating with heavy loads or towing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e21-inch pitch targets higher top-end speed without extreme slip.\u003c\/li\u003e\n  \u003cli\u003eFour blades smooth thrust and reduce ventilation in rough water.\u003c\/li\u003e\n  \u003cli\u003e14-inch diameter maintains usable ground clearance and cavitation resistance.\u003c\/li\u003e\n  \u003cli\u003eAlloy-aluminum construction keeps weight down for responsive feel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and how easy is installation?\u003c\/h3\u003e\n\u003cp\u003eYOUNG PROPS ships this propeller with a full hub kit and all required hardware to replace the original unit. The included components let most mechanically competent owners complete the swap with basic tools and the proper torque sequence.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInterchangeable hub and drive sleeve for secure fitment.\u003c\/li\u003e\n  \u003cli\u003eForward thrust washer, aft adapter, tab washer, and propeller nut included.\u003c\/li\u003e\n  \u003cli\u003eInstallation typically requires standard sockets, pliers, and torque wrench.\u003c\/li\u003e\n  \u003cli\u003eFollow manufacturer torque specs and safety steps when installing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is this propeller and what warranty is offered?\u003c\/h3\u003e\n\u003cp\u003eManufactured under strict quality control, the alloy-aluminum blade construction emphasizes durability while aiming to preserve engine rpm and fuel efficiency. A 12-month replacement policy covers blade fractures and hub bush slippage under normal use, with common exclusions for misuse or modification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlloy-aluminum resists corrosion and delivers long service life.\u003c\/li\u003e\n  \u003cli\u003eDesigned to reduce engine wear by keeping efficient rpm characteristics.\u003c\/li\u003e\n  \u003cli\u003e12-month replacement for specific failures (excludes normal wear and accidental damage).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for?\u003c\/p\u003e\n\u003cp\u003eThis propeller is suited to recreational boaters, anglers and small commercial operators who need a direct-fit replacement for Mercruiser Alpha\/Bravo One or compatible Mercury outboards in the 135–300 HP range. It’s a good choice if you want a four-blade option that improves acceleration and handling, comes with a complete hub kit, and offers a straightforward swap without custom machining.\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: Is this prop a direct OEM replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it fits as a replacement for OEM reference 48-8M0084496 on compatible Mercruiser\/Mercury drives with 15-tooth RH splines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the package include installation hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — a full hub kit plus forward thrust washer, drive sleeve, aft adapter, tab washer and prop nut are included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YOUNG PROPS","offers":[{"title":"Default Title","offer_id":48030820925601,"sku":"B0CF998ZL3","price":271.77,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/young-props-front-view-propeller_19a825eb-3c68-4841-8c66-374490af7bbb.jpg?v=1791412391","url":"https:\/\/canadiansporting.ca\/products\/young-props-14x21-boat-propeller-for-mercruiser-alpha-bravo","provider":"Canadian Sporting","version":"1.0","type":"link"}