Description
Mercury 87818A45 Black Max Propeller — 12.25″ × 9″ RH Aluminum 3-Blade
The Mercury Black Max 87818A45 propeller delivers proven reliability, smooth performance, and value for a variety of small and mid-range outboards. Constructed from Mercury’s proprietary Mercalloy aluminum alloy, this 12.25″ × 9″ right-hand prop offers excellent balance, strength, and vibration control. The included Flo-Torq Reflex hub system cushions your drivetrain against shock loads, while the Phantom Black enamel finish provides lasting corrosion resistance.
Applications
For Mercury and Mariner 25–30HP FourStroke BigFoot/Command Thrust, 30HP TwoStroke, 30HP FourStroke (2005 and earlier), and 40–60HP FourStroke outboards. Always confirm propeller size, hub type, and rotation in your owner’s or service manual before installation.
Shipping & Returns
Fast processing and shipping from our marine parts warehouse. 30-day returns on unopened, unused items. Review our Refund Policy for full details.
Key Facts
- BU Part ID: 87818A45
- Brand: Mercury Propeller
- Category: Propellers
- Subcategory: Black Max
- UPC: 745061018617
- Country of Origin: United States
- Diameter × Pitch: 12.25″ × 9″
- Rotation: Right Hand (RH)
- Blades: 3
- Material: Mercalloy Aluminum
- Hub System: Flo-Torq Reflex (835257K12)
- Finish: Phantom Black Gloss Enamel
- Engine Fit: Mercury / Mariner 25–60HP Outboards
- Package Length: 12″
- Package Width: 11.1″
- Package Height: 6.35″
- Package Weight: 4.17 lb
- Prop 65 Code: Cancer
What’s Included
- 1 × Mercury Black Max Propeller — 87818A45 (12.25″ × 9″ RH, 3-Blade Aluminum)
- 1 × Flo-Torq Reflex Hub Kit (835257K12)
Service Notes
- Install using the included Flo-Torq Reflex hub kit for proper alignment and drivetrain protection.
- Inspect propeller blades, washers, and thrust components for wear before installation.
- Verify correct WOT RPM range and torque values per Mercury service manual after installation.