4 HP

FourStroke 4 HP

Power Tender and Skiffs. Effortlessly.

57 pounds of agile performance.

  • Engine type 1 cylinder
  • Full throttle RPM 5000-6000
  • Steering Tiller
  • Dry weight *Lightest model available 57 lbs / 26 kg

Key Features

Lightweight.

Weighing just 38 and 57 pounds, respectively, our 2.5 - 3.5hp and 4 - 6hp FourStroke outboards are easy to lift and carry.

Generate Power.

Convenience and performance you can count on. 4 amp alternator to charge a battery: exhaust relief holes and 6" prop for improved handling when reversing heavy boats; even an added rectifier to power small external lights. A 5hp FourStroke that powers your boat.

Shallow Water.

Multiple trim positions enhance performance and enable shallow-water operation.

Easy to Start.

Automatic decompression bleeds off cylinder pressure to reduce the pulling force required to start the engine.

Quiet.

Through-prop exhaust on all Mercury® 4 - 6hp FourStrokes exits underwater for quiet operation.

Fueling Options.

Mercury® 4, 5 and 6hp FourStrokes feature integral fuel tanks with an external fuel-shutoff valve, as well as a fuel-tank cap on top of the cowl. For extended range, these engines also can be connected to a remote fuel tank placed in the boat.

  • Category:
  • HP / kW:
    4 / 2.9
  • Engine Type:
    1 cylinder
  • Displacement (CID/CC):
    7.5 / 123
  • Full Throttle RPM:
    4500-5500
  • Fuel Induction System:
    2-valve pushrod (overhead valve)
  • 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:
    Manual
  • Steering:
    Tiller
  • Shaft Length:
    15" / 381 mm, 20" / 508 mm
  • Gearcase Ratio:
    2.15:1
  • Dry Weight *Lightest Model Available:
    57 lbs / 26 kg
  • CARB Star Rating:
    3
  • Bore & Stroke:
    2.32 x 1.77" / 59 x 45 mm
  • Ignition:
    CDI w/electronic spark advance
  • Fuel System:
    Carbureted
  • Cooling System:
    Water-cooled with thermostat
  • Gear Shift:
    F-N-R
  • Gearcase Options:
    Standard
  • Trim Positions:
    6
  • Exhaust System:
    Through prop
  • Shallow Water Drive:
    Yes
  • Shallow Water Trim Range (Degrees):
    16
  • Integrated Fuel Tank (gal / L):
    0.3 / 1.1
  • Optional Fuel Tank (gal / L):
    3.2 / 12
  • 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:

CONTACT US

  • Address:

    1410 Wolohan Drive
    Ashland, KY 41102

  • Phone:

    606-928-8345

  • Email:

    rockdaleboatmart@gmail.com

HOURS OF OPERATION

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