Suzuki 25 HP DF25AS4


With its battery-free EFI fuel injection system, Suzuki’s 25 HP DF25AS4 outboard motor packs a powerful punch in a small package. This three-cylinder 25-horsepower outboard engine was built with fuel efficiency in mind. With a manual start engine and a 15-inch short shaft, the Suzuki model DF25AS4 is an inexpensive yet powerful option. This 25 HP outboard comes standard with a 6-gallon external fuel tank and gasoline line, an aluminum propeller, a tool pack, and Suzuki’s 5-year factory warranty.

We are proud to be an authorized Suzuki Outboard Dealer. Shipping in the lower 48 states is always free.


  • Battery-Less Electronic Fuel Injection
  • Easy Start – Recoil Starter
  • Lean Burn Control
  • Over-Rev. Limiter
  • Low Oil Pressure Caution
  • Digital CDI
  • Fresh Water Flushing System
  • Shallow Water Drive
  • Suzuki Anti-Corrosion System
  • Suzuki’s Newest 5-Year Manufacturer Warranty

Out of stock

SKU: DF25AS4-22

Additional information



Engine Start


Shaft Length

15" (Short)



Trim & Tilt


Fuel DeliveryEFI
Fuel TankExternal
Fuel TypeUnleaded Gasoline (87 octane)
Fuel Tank LineYes
Displacement29.8 (489)
Weight136 lbs.
Bore & Stroke2.80 x 2.68 ()
Full Throttle RPM6300
Ignition SystemDigital CDI
Induction ScavengingSOHC
Valves Per Cylinder4
Oil TypeSAE 10W-30 or SAE 10W-40
Oil Capacity1.6 (1.5) L
LubricationWet Sump; Trochoid Type Cam-Driven Oil Pump
Cooling SystemWater-Cooled
Saltwater RatedYES
Gear Ratio2.09:1
Gear ShiftForward-Neutral-Reverse (front-mounted lever)
Propeller3 blade aluminum 9.25" Dia. x 10" Pitch
Internal BatteryNo