SpitFire X7 (14 x 13″) Mercury RH Propeller For 75/125hp Mercury & 40/60hp Bigfoot Command Thrust Outboard, 48-8M0151360



  • Hub kit sold separately, see the fitment information below to select the correct hub kit for your application.
  • Right hand rotation (clockwise rotation)
  • Superior acceleration generated through a small diameter design
  • Ultimate top speed and holding through aggressive cup
Fitment: Mercury Outboards: Mercury 75/125 HP, Bigfoot Command Thrust 40/60 HP Outboard
  • 75-125 HP Outboards, 1978 and newer
  • Use Hub Kit #835257K1 for all 2-Stroke applications
  • Use Hub Kit #8M0150151 for all 4-Stroke applications*
  • 40-60 HP Bigfoot/Command Thrust (CT), All Years
  • Note: This will only fit the 40-60 HP Command Thrust & Bigfoot gearcase, it will not fit a standard gearcase 40-60 gearcase
  • Use Hub Kit #8M0150151*
Non-Mercury  Outboard, 4.25″ Gearcase
  • Suzuki/Johnson 90-115 HP 4-Stroke (2001-2008) – Use Hub Kit #835283Q1
  • Suzuki/Johnson 100-115 HP 4-Stroke (2009 and newer), 140 HP 4-Stoke – Use Hub Kit #835283Q2
  • Suzuki 70-90 HP 4-Stroke (2009 and newer) – use Hub Kit #835283Q03
  • Honda 75-90 HP (1998 and older) – Use Hub Kit #835277Q1
  • Honda 75-90 HP (1999 and newer), 115-130 HP – Use Hub Kit #835279Q2
  • Yamaha 50-100 HP – Use Hub Kit #835272Q1
  • Yamaha 115-130 HP – Use Hub Kit #835271Q2

Preorder .This item is very much in demand. Pre-order to get your hands on the very next one available - it’s only £100 deposit to secure your spot!



The Mercury SpitFire X7 is a 4-blade stainless steel version of the SpitFire aluminum propeller with remarkable acceleration, top speed, and holding. This is the propeller of choice for 75-115 HP outboards, and the 40-60 HP Command Thrust (CT) with larger 4.25″ gearcases.

  • Mercury 75hp Outboard Propeller
  • Mercury 115hp Outboard Propeller
  • Mercury 125hp Outboard Propeller
  • Bigfoot/Command Thrust 40hp  Outboard
  • Bigfoot/Command Thrust 60hp  Outboard
  • Yamaha 50hp  Outboard
  • Yamaha 100hp  Outboard
  • Yamaha 115hp  Outboard
  • Yamaha 130hp  Outboard
  • Honda 75hp  Outboard
  • Honda 90hp  Outboard
  • Suzuki 70hp  Outboard
  • Suzuki 90hp  Outboard


Flo-Torq® II: Hidden Protection

Mercury’s Flo-Torq propeller hub might just be the most important part you never see. Not only does it flex during shift changes, reducing noise and vibration. If your prop hits an underwater object, it sacrifices itself to save your lower unit. Just pop in a new hub and you’re back on the water, no service call needed. The Flo-Torq hub also makes Mercury propellers compatible with most engines on the market while also providing unmatched corrosion protection.


Mercalloy®: Patented Performance

We couldn’t find an aluminum alloy good enough for our propellers. So we invented one: Mercalloy Aluminum. So unique it’s patented, Mercalloy makes for higher-strength castings. Which allows for thinner blades that create less drag. Result? Optimal performance, optimal durability, better boating.


Built with pride in Fond du Lac, Wisconsin. Trusted everywhere.

How do you make a Mercury® propeller? One exacting step at a time. It starts with a prop mold. Cast in specially engineered hot wax using a 5,000-year-old technique. Reinforced with two ceramic finishes in an application process that takes two full days. Steam-heated in an autoclave at 325 degrees Fahrenheit and 100 PSI of pressure. And finally placed in a burnout furnace at more than 2000 degrees Fahrenheit – a heat that requires employees to wear aluminized protective clothing. Strengthened and shock-proofed, the mold is ready. Liquid stainless steel now fills the cavity, heated to 3000 degrees and dispensed in 50-pound dollops. Five hundred pounds of the molten metal pass through, creating 24 Mercury propellers. The freshly cast props cool on carts for about an hour. Then jackhammer-like knockout machines, abrasive saws, and sandblasters remove all traces of residual ceramic and oxidation. Machinists hone and prepare props for specific applications. And grinders thin leading blade edges and sand other areas. Next step: surface refinement. Two hours in a drag finish machine smoothes peaks and valleys, creating the matte finish of a Bravo Three® or pod-drive prop. Other propellers move on to a burnishing stage, gaining a high-luster finish. Fitting props with Performance Vent System plugs is the final step. They are now ready to be customized for better hole shot – and to deliver the superior performance Mercury owners around the world count on.

A Higher Grade of Performance

Mercury transforms aluminum and stainless steel into the highest-quality, best-performing, most-durable marine propellers in the world. Also the best-selling, no surprise. Our experience, expertise, and proprietary technologies – Flo Torq®, Mercalloy®, X7® alloy, and PVS® (Performance Vent System) – give you a true competitive advantage. For best overall boat performance, there’s no substitute for a Mercury Propeller.


Flo-Torq SSR

The Flo-Torq SSR utilizes Mercury’s proven Soft-Shift Rubber technology in a quiet hub kit that provides an NVH upgrade for Flo-Torq II hub applications where the maximum reduction of noise, vibration, and harshness is desired.

Helps preventing shifting noise and propeller rattle while providing maximum durability for smaller and mid-range horsepower outboards.

SSR Solid
Helps prevent shifting noise and propeller rattle while providing maximum durability in higher performance applications with 1” propeller shaft.

Helps prevent shifting noise and propeller rattle while providing maximum durability in higher performance applications with 1.25” propeller shaft.

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Additional information

Weight5 kg
For Engine Brand





No. of Blades


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