Description
Mercury 78116A45 Black Max Propeller — 15.5″ × 15″ RH Aluminum 3-Blade
The Mercury Black Max 78116A45 propeller provides a balance of reliability, value, and proven performance for a wide range of Mercury and Mariner outboards and MerCruiser sterndrives. Built from Mercury’s patented Mercalloy aluminum alloy, this 15.5″ × 15″ right-hand prop combines strength and impact resistance with a corrosion-resistant Phantom Black enamel finish. The included Flo-Torq II hub system safeguards your drivetrain from vibration and impact damage.
Applications
For use on Mercury and Mariner 90–115HP FourStroke Command Thrust outboards, 135–300HP TwoStroke and FourStroke outboards, and MerCruiser Alpha One and Bravo One sterndrives. Always verify propeller dimensions, 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: 78116A45
- Brand: Mercury Propeller
- Category: Propellers
- Subcategory: Black Max
- UPC: 745061018532
- Country of Origin: United States
- Diameter × Pitch: 15.5″ × 15″
- Rotation: Right Hand (RH)
- Blades: 3
- Material: Mercalloy Aluminum
- Finish: Phantom Black Gloss Enamel
- Included Hub Kit: Flo-Torq II (835257K1)
- Engine Fit: Mercury / Mariner 90–300HP Outboards; MerCruiser Alpha & Bravo One Sterndrives
- Package Length: 17.25″
- Package Width: 16.55″
- Package Height: 7.15″
- Package Weight: 9.028 lb
- Prop 65 Code: Cancer and Reproductive Harm
What’s Included
- 1 × Mercury Black Max Propeller — 78116A45 (15.5″ × 15″ RH, 3-Blade Aluminum)
- 1 × Flo-Torq II Hub Kit (835257K1)
Service Notes
- Install using the included Flo-Torq II hub kit for optimal fit and vibration protection.
- Inspect propeller, hub, and thrust washer for wear or debris before installation.
- Confirm correct WOT RPM range and torque settings per Mercury specifications after installation.