Suzuki 4 HP DF4AS4


The Suzuki 4 HP outboard motor model DF4AS4 features the largest displacement of any other 4 HP one-cylinder outboard. Standard features include a full-size twist grip throttle, tiller steering, forward-neutral-reverse gear shift with large easy-to-use shift lever, 15 inch shaft, digital CDI ignition and integral fuel tank, making it perfect for canoes, small fishing boats, and small to medium sized tenders and inflatables. We offer Suzuki’s newest 5-year manufacturer warranty, free shipping, and discounted prices!


  • Compact and Lightweight Design
  • 3 Way Storage: Stbd, Port, or Front
  • Saltwater Rated
  • Multi-Layer Corrosion Protection
  • Quiet Below-the-Water Exhaust
  • Fold-Down Tiller Handle
  • Rubber Mount Bracket System
  • Twist-Grip Throttle with Tensioner
  • Large Carrying Handle
  • Large Gear Shift Lever
  • Digital CDI Ignition for Quick Starting
  • 3-Star Ultra-Low Emission Rating
  • Shallow Water Drive (2 positions)
  • 5 Trim Positions w/Tilt Lock Pin
  • Over-Rev Limiter Protection
  • Throttle Tension Control
  • Steering Friction Tension Control
  • 90° Left / Right Turning for Tight Spots
  • Emergency Lanyard Stop Switch
  • Built-in .26 Gal. Fuel Tank (40 min. @ WOT)
  • 3-Blade Aluminum Propeller
  • Suzuki’s Newest 5-Year Manufacturer Warranty
SKU: DF4AS4-22

Additional information



Shaft Length

15" (Short)

Engine Start




Trim & Tilt


Fuel DeliveryCarburetor
Fuel TankInternal
Fuel TypeUnleaded Gasoline (87 octane)
Fuel Tank Line.26 US Gallon Integral Fuel Tank
Displacement138 cc (8.4 cubic inches)
Weight52 lbs.
Bore & Stroke2.38 x 1.89 inches
Full Throttle RPM4000 - 5000
Ignition SystemDigital CDI
Induction ScavengingOHV
Valves Per Cylinder2
Oil TypeSAE 10W-30 or SAE 10W-40
Oil Capacity24 fl oz. (700 mL)
LubricationWet Sump
AlternatorOptional 12V 5A (installation required)
Cooling SystemWater-Cooled
Saltwater RatedYES
Gear Ratio1.92:1
Gear ShiftForward-Neutral-Reverse (starboard side lever)
Propeller3 blade aluminum 7.5" Dia. x 6.5" Pitch
Internal BatteryNo