Manufacturer Part Number (MPN)
DF4AS3
Marine Specialist Insight: The Suzuki DF4AS3 (MPN DF4AS3) is the high-torque champion of the portable class. Boasting a massive 138cc displacement, it provides more low-end grunt than many competitors in the 4 HP range. This "AS3" version features a 15-inch short shaft and an innovative 3-way storage system that allows it to be laid on any side without oil leakage—making it the definitive choice for small tenders and fishing skiffs.
Compact Power with Big-Engine Displacement
The Suzuki DF4AS3 (MPN: DF4AS3) is engineered for the boater who needs reliable, punchy performance in a lightweight package. While small in stature, its large-displacement 138cc OHV engine delivers excellent mid-range torque, allowing for easier movement of heavy tenders. Suzuki's digital CDI ignition ensures a reliable spark for quick, effortless starts, while the water-cooling system keeps the engine running at optimal temperatures for years of service.
This model is built with portability in mind, featuring a large, ergonomically designed carrying handle and a weight of just over 50 lbs. The integrated 1.5-liter fuel tank provides excellent range for coastal exploration, though it also features a built-in connector for those who prefer to use an external tank for longer journeys. With 180-degree steering and a F-N-R gear shift, it offers precise control in tight marinas.
Technical Specifications
| Official MPN |
DF4AS3 |
| Horsepower |
4 HP |
| Shaft Length |
15" (Short Shaft) |
| Starting System |
Manual Recoil |
| Displacement |
138cc (Best-in-Class Torque) |
| Weight |
Approx. 52 lbs (23.5 kg) |
| Internal Fuel Tank |
1.5 Liters |
DF4AS3 Key Features:
- 3-Way Storage: Advanced design allows the motor to be stored on its front, left, or right side without worrying about oil leakage.
- Large 138cc OHV Engine: Provides superior torque and acceleration compared to smaller displacement 4 HP models.
- F-N-R Shifting: Full Forward-Neutral-Reverse gear shift for easy maneuvering and dockside safety.
- Dual Fuel Options: Use the 1.5L internal tank for short trips or connect an external tank (sold separately) for extended range.
- Offset Crankshaft: Reduces vibration and improves combustion efficiency for a smoother, quieter ride.
Frequently Asked Questions
1. Can I lay this motor down in my trunk?
Yes, the DF4AS3 (MPN DF4AS3) is designed with a unique venting system that allows it to be laid on any of three sides without oil leaking into the cylinders or carb.
2. Does it come with the connector for an external fuel tank?
Yes, the motor includes a built-in fuel connector. You will just need an external tank and fuel line assembly to utilize this feature.
Outboard Motor Specialist | Verified Suzuki Marine Technical Data | MPN: DF4AS3
