{"product_id":"quicksilver-8m0101603-flo-torq-ssr-hd-propeller-hub-kit","title":"Quicksilver Flo-Torq SSR HD Propeller Hub Kit for Mercury 200–400 hp FourStroke — 1.25\" Shaft, Noise‑Reducing Rubber Insert","description":"\u003cp\u003e\u003cstrong\u003eThe Quicksilver Flo-Torq SSR HD Propeller Hub Kit 8M0101603 is a direct-fit replacement hub that reduces shift noise and vibration for Mercury 200–400 hp FourStroke outboards with a 1.25\" prop shaft.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis heavy-duty Flo-Torq SSR (Soft-Shift Rubber) hub kit is engineered to smooth the transfer of torque from the lower unit to the propeller, cutting down loud shift clunks and prop rattle. Designed as a genuine Quicksilver\/Mercury OE replacement, the kit simplifies service with all required hardware included and works with most 200–400 hp FourStroke engines that accept a 1.25\" propeller shaft. If your engine’s serial number is below a specific threshold, a dealer update may be required before installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this hub reduce shifting noise and vibration?\u003c\/h3\u003e\n\u003cp\u003eThe SSR hub uses a resilient rubber insert and a solid drive sleeve to absorb shock during gear engagement, lowering the abruptness of shift events. That cushioning reduces mechanical noise and dampens torsional vibration transmitted to the propeller and hull.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSoft-Shift rubber design minimizes shift clunk and driveline shock\u003c\/li\u003e\n  \u003cli\u003e22–23% measured reduction in shift-event noise compared to rigid hubs\u003c\/li\u003e\n  \u003cli\u003eSolid drive sleeve maintains torque transfer while isolating harsh feedback\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat parts are included and how simple is the installation?\u003c\/h3\u003e\n\u003cp\u003eEach kit ships complete with the SSR drive sleeve and a matched set of washers and fasteners so you won’t need extra parts for a standard replacement. Installation is straightforward for anyone familiar with lower unit work and can be done with common tools or Quicksilver accessories like the floating prop wrench and prop block.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: SSR drive sleeve, three-washer set, tabbed lock washer, locking prop nut\u003c\/li\u003e\n  \u003cli\u003eCompatible with typical shop tools; Quicksilver prop tools speed the job\u003c\/li\u003e\n  \u003cli\u003eFollow Mercury service advisories for engines with early serial numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and shaft sizes is this kit designed for?\u003c\/h3\u003e\n\u003cp\u003eThis Flo-Torq SSR HD kit is specifically sized for Mercury FourStroke outboards rated 200–400 horsepower using a 1.25\" diameter propeller shaft. Quicksilver offers alternate SSR kits for other horsepower ranges and 1.00\" shafts—verify fitment before ordering to ensure correct application.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Mercury FourStroke 200–400 hp engines with 1.25\" prop shafts\u003c\/li\u003e\n  \u003cli\u003eDo not substitute for 1.00\" shaft applications—use the correct SSR kit\u003c\/li\u003e\n  \u003cli\u003eHigh-performance and surface-piercing setups may require different part numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boaters and technicians who want a factory-quality hub replacement that quiets shift noise and improves propeller engagement on mid- to high-horsepower Mercury FourStroke outboards. Ideal for operators who value smooth shifting, reduced vibration, and an OEM-fit solution from Quicksilver.\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: Will this kit fit my Mercury FourStroke?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits Mercury FourStroke 200–400 hp models with a 1.25\" propeller shaft; confirm engine serial and fitment chart before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include everything needed for replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it contains the SSR drive sleeve, three-washer set, tabbed lock washer, and locking prop nut for standard installs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Quicksilver","offers":[{"title":"Default Title","offer_id":48031124390049,"sku":"B078H669S7","price":402.72,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/quicksilver-hub-front-view.jpg?v=1791423498","url":"https:\/\/canadiansporting.ca\/products\/quicksilver-8m0101603-flo-torq-ssr-hd-propeller-hub-kit","provider":"Canadian Sporting","version":"1.0","type":"link"}