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PolaFlex hub Kit for High Power Mercury & MerCruiser applications with 1.25-inch-diameter prop shaft and 19 splines

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SKU: F51
Regular price £67.95 GBP inc. VAT
This product is available for preorder. The approximate shipping time for this product is 21 days from time of customer order.

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This PolaFlex F51 hub kit is engineered for V8-powered 250-300hp Mercury Verado outboards alongside 175-300 hp Pro XS Torque Master II gearcases. Built specifically for high-speed setups, it features a heavy-duty 1.25-inch-diameter prop shaft with 19 splines.

Primary Applications:
  • Mercury Verado & Pro XS V8 Outboards
  • Mercruiser X/R & X/Z Sterndrives

It is intended for setups utilizing an HD 1.25" prop shaft when paired with Fleet Master and Verado 5.25" gearcases, Sport Master, or Torque Master I and II units (specifically Torque Master gearcases configured to fit 200XS, 225X, 2.5 EFI, 225 Pro X, 250XS, and 300X). Additionally, it fits MerCruiser Bravo One XR or XZ systems, Sport Master and shorty Sport Master Bravo 1 XR Sport sterndrives, as well as Mercury Racing Sport components.

Compatible with:
  • RUBEX RBX 123
  • Flo-Torq SSR HD Kit (8M0101603)
  • Type Propellers & Accessories
  • Vendor PolaStorm
  • SKU F51

Compatible With:

  • MerCruiser
  • Mariner Outboards
  • Mercury Outboards

Direct to Consumer Pricing

We sell directly to you—no distributors, no wholesalers, no resellers. By cutting out the middlemen, we pass the savings straight to our customers.

  • Mark & Paul, going above and beyond

    ★★★★★
    "We need a prop in a big hurry and Mark and Paul pulled out all the stops to get it to us in record time. Every time I need something it's right first time and on time. It genuinely doesn't get better than specialist small craft"

    - Graham

  • Propeller replacement in an amazing turn round time.

    ★★★★★
    "On a job in the wilds of Lincolnshire and the workmen on the pontoon hit the propeller on their self-propelled pontoon on rocks and other debris, it was chewed up to less than half the working diameter and one blade was broken in half. A phone call to Specialist Small Craft had a replacement propeller despatched almost immediately and it was with us the following morning. FANTASTIC SERVICE plus the knowledge and experience of the team at Specialist Small Craft is second to none. "

    - Simon

  • First class team!

    ★★★★★
    "We have been working with Mark over the past couple of decades, Mark and his team have always provided a first class service with a personal touch, we cannot recommend Specialst Smallcraft Highly Enough!"

    - John