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10.6" x 12" PolaStorm 4-Blade Aluminium-Titanium Propeller Mercury Mariner 25-70hp


10.6" x 12" PolaStorm 4-Blade Aluminium-Titanium Propeller Mercury Mariner 25-70hp


PolaStorm produce incredibly strong, titanium-aluminium alloy propellers that equal or exceed OEM equivalents. We’re able to offer these at competitive prices, due to a shortened supply chain.

4-Blade Aluminium propeller with rubber hub supplied with spacer, washer and prop nut to suit Mercury & Mariner outboards. 4-Blade propeller offer increased thrust at low speeds making them ideal for watersports and heavier craft. This 12" pitch 4-blade propeller would best suit craft that have outboards currently fitted with 13" and 14" pitch aluminium or 12" and 13" stainless steel 3-blade propellers.

Only when replacing older rubber hub propellers and Flo-Torq Reflex propellers  - use a new Mercury hardware fitting kit that needs to be purchased separately. These older propellers use a different spacer washer than modern Mercury props.

Propeller Specification:

  • Material: Titanium/Strontium/Aluminium Alloy
  • Process: Aerospace Precision Casting (APC) (up to 33% stronger)
  • Diameter: 10.6"
  • Pitch: 12"
  • Colour: Black
  • Spline Tooth: 13
  • Blades: 4
  • To suit:  3 1/4" gearcase

Outboard Application

Mercury & Mariner models:

4 Stroke:

  • 25hp Bigfoot / Command Trust  (1999+)
  • 30-40hp (1997+)
  • 50hp (1995+)
  • 60hp (2001+)
  • All 40-60hp (1977+) (not BigFoot)

2 Stroke:

30hp (1994 -2002)

  • 30hp Sea Pro/ Marathon (1994+)
  • 35hp (1984-1989)
  • 40 HP (1977 & newer)
  • 45hp (1986-1998)
  • 48hp
  • 50hp (1977+)
  • 55hp (1995+)
  • 60hp (1978+)
  • 70hp (1983)
  • All 40-60hp (1977+) (not BigFoot)

Why choose a PolaStorm QPIM propeller?

An advanced Aerospace Precision Casting (APC) process using Titanium/Strontium/Aluminium alloy, results in a product which is up to 33% stronger than traditional Die and Squeeze Cast aluminium propellers. They are then finished using a robotically applied AkzoNobel* patented, environmentally friendly, anti-corrosion powder coating.

We're proud to be the British Isles exclusive distributor. Stock is held at our base in Wiltshire, allowing us to offer Next Day mainland GB delivery (except Highlands & Islands) if ordered before midday on weekdays. 

*AkzoNobel are the owners of International Paints, Sikkens, Dulux etc.”

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