15 HP

FourStroke 15 HP

All-in-one Performance

Intuitive maneuvering for precise control.

  • Engine type Inline 2
  • Full throttle RPM 5400-6100
  • Steering Remote, Tiller
  • Dry weight *Lightest model available 115 lbs / 52 kg

Key Features

Electrical support.

A high-output alternator keeps batteries charged and fishing electronics humming.

Start Easily, Idle Smoothly.

Mercury 8hp to 20hp FourStroke outboards have features that make starting easier, warm-ups faster and idling smoother!

The fuel filter on 8hp to 20hp Mercury FourStrokes has been moved to keep the carburetor cleaner

Tiller handle models have a richer air/fuel mix at idle

They also come standard with a three-position choke, eliminating the need for a primer button

Great acceleration / more torque.

Compact but powerful, Mercury® 15 - 30hp FourStroke outboards feature extra displacement and outstanding low-end torque that put a boat smartly on plane.

More Thrust.

Mercury® ProKicker outboards feature a deeper gearcase and a four-blade, high-thrust propeller with matching gear ratio – the perfect setup for trolling and precise control in all conditions. The ProKicker gearcase is engineered to be rugged and durable, with robust gears and bearings and a heavy-duty skeg that’s 55% thicker and twice as strong side-to-side as the previous gearcase.

Power Tilt.

The fastest power tilt in the industry drops a Mercury 9.9 - 15hp ProKicker FourStroke outboard into the water in just five seconds. Exclusive kicker-centering straps align and secure the outboard in full tilt-up position while you’re underway.

Power in the Palm of Your Hand.

Tiller models feature the exclusive Mercury multifunction tiller that puts

  • shifting
  • throttle control (with improved slow-speed throttle advance for optimal trolling)
  • stopping
  • tilting
  • steering

in the palm of your hand.

  • Category:
  • HP / kW:
    15 / 11.1
  • Engine Type:
    Inline 2
  • Displacement (CID/CC):
    21.4 / 351
  • Full Throttle RPM:
  • Fuel Induction System:
    2 valves per cylinder, single overhead cam (SOHC)
  • Alternator amp / Watt:
    12 amp / 138 watt
  • Recommended Fuel:
    87% octane / up to 10% ethanol
  • Recommended Oil:
    Mercury FourStroke Oil 10W-30
  • Engine Protection Operator Warning System:
    Low oil pressure, Over-rev
  • Starting:
    Electric, Manual
  • Steering:
    Remote, Tiller
  • Shaft Length:
    15" / 381 mm, 20" / 508 mm
  • Gearcase Ratio:
  • Dry Weight *Lightest Model Available:
    115 lbs / 52 kg
  • CARB Star Rating:
  • Bore & Stroke:
    2.40 x 2.36" / 61 x 60 mm
  • Ignition:
    CDI w/electronic spark advance
  • Fuel System:
  • Cooling System:
    Water-cooled with thermostat
  • Gear Shift:
  • Gearcase Options:
  • Trim System:
    Power Tilt
  • Trim Positions:
  • Exhaust System:
    Through prop
  • Shallow Water Drive:
  • Shallow Water Trim Range (Degrees):
  • Remote Fuel Tank Standard (gal / L):
    6.6 / 25
  • Color:
    Phantom Black

Rockdale Boat Mart has a large number of new and used boats and outboard motors in stock, and they provide repair services to keep your engine and motor running. If you have any questions about their services or the products they offer, don’t hesitate to give them a call.

Follow Us:


  • Address:

    1410 Wolohan Drive
    Ashland, KY 41102

  • Phone:


  • Email:



Monday 9:00 am - 5:00 pm
Tuesday 9:00 am - 5:00 pm
Wednesday 9:00 am - 5:00 pm
Thursday 9:00 am - 5:00 pm
Friday 9:00 am - 5:00 pm
Saturday By Appointment
Sunday Closed