Description
Mercury 8M8026580 SpitFire 4-Blade Aluminum Propeller 13.4 x 15 RH
Upgrade acceleration, handling, and overall boat control with the Mercury 8M8026580 SpitFire 4-blade aluminum propeller. Engineered to deliver the handling benefits of a 4-blade prop with top speeds that rival comparable 3-blade aluminum propellers, this 13.4-inch diameter x 15-pitch right-hand propeller is designed for select Mercury and Mariner 40-60 HP BigFoot/Command Thrust outboards and 75-125 HP TwoStroke and FourStroke outboards.
Key Features
- Genuine Mercury SpitFire 4-blade aluminum propeller
- 13.4 in. diameter x 15 in. pitch
- Right-hand rotation aluminum propeller
- Designed for the Mercury/Mariner 40 CT-125 HP propeller application group
- Fits 40-60 HP BigFoot/Command Thrust FourStroke outboards and 75-125 HP TwoStroke/FourStroke outboards where specified
- Aggressive blade geometry helps enhance handling, holding, acceleration, and top-end performance
- Provides 16-25% faster acceleration than comparable 3-blade aluminum propellers
- Patented Mercalloy aluminum alloy is engineered for strength, durability, and ductility during minor impacts
- Includes Flo-Torq II Hub Kit 835257K1 to help protect the drivetrain from many minor impact events
Fitment / Product Details
- Brand: Mercury
- Part Number: 8M8026580 / 48-8M8026580
- BU Part ID: Not provided
- Product Type: SpitFire 4-Blade Aluminum Propeller
- Application: Mercury and Mariner 40-60 HP BigFoot/Command Thrust FourStroke outboards and 75-125 HP TwoStroke/FourStroke outboards where specified
- Engine Types: Mercury/Mariner BigFoot, Command Thrust, TwoStroke, and FourStroke outboard applications
- HP Range: 40-60 HP BigFoot/Command Thrust FourStroke; 75-125 HP TwoStroke/FourStroke
- Serial Ranges: Not provided; verify by outboard model, gearcase, spline count, and propeller application chart
- Year Range: 40-60 HP BigFoot/Command Thrust applications where specified; 75-125 HP outboards 1978 and newer where specified
- Diameter: 13.4 in.
- Pitch: 15 in.
- Rotation: Right Hand
- Material: Aluminum / Mercalloy aluminum alloy
- Blade Count: 4
- Spline Count: 15-tooth spline application group
- Included Hub Kit: Flo-Torq II Hub Kit 835257K1
- Prop 65: Cancer and Reproductive Harm where shown in the Mercury propeller catalog
- UPC: 745061893979 where listed by supporting retail references
- Country of Origin: Not provided
- Package Dimensions: Not provided
- Package Weight: Not provided
- Supersedes / Replaces: Not provided
- Fitment Note: Confirm compatibility by Mercury part number, engine model, horsepower, gearcase size, spline count, WOT RPM range, thrust washer, prop nut hardware, owner’s manual, or Mercury propeller application chart before ordering.
What’s Included
- One Mercury 8M8026580 SpitFire 4-blade aluminum propeller
- Flo-Torq II Hub Kit 835257K1
- Thrust washers, prop nut hardware, and additional installation parts should be verified against your engine owner’s manual or propeller hardware chart
Expanded Fitment
- Mercury/Mariner 40-60 HP BigFoot FourStroke outboards where specified
- Mercury/Mariner 40-60 HP Command Thrust FourStroke outboards where specified
- Mercury/Mariner 75-125 HP TwoStroke outboards, 1978 and newer where specified
- Mercury/Mariner 75-125 HP FourStroke outboards, 1978 and newer where specified
- Mercury/Mariner 40 BigFoot / Command Thrust through 125 HP application group with 15-tooth spline
- Not for 25-60 HP standard gearcase applications that use Flo-Torq Reflex 835257K12
- Not universal; verify gearcase, spline count, propeller hardware, and engine operating RPM before ordering
Why You Should Buy
- SpitFire design delivers 4-blade handling with speed performance that rivals comparable 3-blade aluminum props
- Excellent choice for boaters wanting stronger acceleration, better grip, and improved control
- Mercury prop guide recommends replacing a properly matched 3-blade prop with the same pitch SpitFire when engine RPM is already correct
- Mercalloy aluminum construction balances strength, durability, and impact forgiveness
- Included Flo-Torq II hub kit helps protect the engine drivetrain from many minor damage-causing impacts
- OEM Mercury propeller engineered and tested for fit, function, and performance on compatible Mercury and Mariner outboards
Common Applications
- Mercury 40-60 HP BigFoot / Command Thrust propeller upgrade
- Mercury and Mariner 75-125 HP outboard propeller replacement
- Fishing boat propeller upgrades
- Ski boat and family boat acceleration improvements
- Replacing a worn, damaged, or underperforming aluminum propeller
- Improving hole shot, handling, grip, and midrange control on compatible outboards
FAQ
- What is Mercury 8M8026580? It is a Mercury SpitFire 4-blade aluminum propeller with 13.4 in. diameter, 15 in. pitch, and right-hand rotation.
- What HP range does this propeller fit? It fits the 40 CT-125 HP application group, including 40-60 HP BigFoot/Command Thrust FourStroke outboards and 75-125 HP TwoStroke/FourStroke outboards where specified.
- Does this propeller include a hub kit? Yes. This propeller includes Flo-Torq II Hub Kit 835257K1.
- What spline count is this propeller application group? The Mercury propeller application chart lists this group as a 15-tooth spline application.
- Is this right-hand or left-hand rotation? This is a right-hand rotation propeller.
- Is this a pontoon propeller? This 15-pitch version is listed as a standard SpitFire propeller. The 10, 11, and 13 pitch SpitFire Pontoon versions are listed separately for superior holding and lift on pontoon applications.
- How does SpitFire compare to a 3-blade propeller? Mercury propeller guide data states SpitFire can provide 16-25% faster acceleration, superior holding, and no top-speed penalty versus a comparable 3-blade aluminum propeller.
- How do I choose the correct pitch? If your engine RPM is appropriate with your current 3-blade propeller, Mercury recommends replacing it with the same pitch SpitFire propeller.
- Do I need separate thrust washers or prop nut hardware? Check your engine owner’s manual for the correct thrust washer and prop nut part numbers for your exact engine or drive.
- How do I confirm fitment? Confirm using Mercury part number 8M8026580 / 48-8M8026580, horsepower, gearcase, spline count, WOT RPM range, propeller hardware, owner’s manual, or Mercury propeller application chart.