Manufacturer Part Number (MPN)
MFS4DDS
Marine Engineer Insight: The Tohatsu MFS4DDS (MPN MFS4DDS) is the gold standard for portable maritime power. Redesigned with a focus on ergonomics and ease of use, this 4hp model features a 3-way storage capability that allows it to be stored on its front, left, or right side without oil leakage. Perfect for small tenders, canoes, and as an auxiliary motor for sailboats, the MFS4DDS offers a high power-to-weight ratio and the legendary reliability that Tohatsu owners have trusted for decades.
Portability Meets Professional Grade Performance
The Tohatsu MFS4DDS (MPN: MFS4DDS) is a 1-cylinder, 4-stroke engine that provides smooth, quiet, and fuel-efficient operation. This 15" short shaft model is remarkably easy to transport thanks to its large carrying handles and lightweight frame. The integrated 1.15-liter fuel tank allows for a clean, hose-free setup on the transom, while the external fuel connector gives you the flexibility to attach a larger tank for extended voyages.
One of the standout features of the MFS4DDS is the front-mounted shift lever, an industry-leading design that makes gear selection significantly easier than side-mounted alternatives. Coupled with a 360-degree steering radius, this motor provides exceptional maneuverability in tight marinas or shallow docks. Tohatsu’s ultra-low emission technology ensures this motor is EPA and CARB 3-star rated, making it environmentally friendly and efficient.
Technical Specifications
| Official MPN |
MFS4DDS |
| Engine Type |
1-Cylinder 4-Stroke |
| Shaft Length |
15" (Short Shaft) |
| Starting System |
Manual Recoil |
| Fuel Tank |
1.15L Integrated (External Tank Ready) |
| Dry Weight |
Approx. 55 lbs (25 kg) |
| Control Type |
Tiller Steering |
MFS4DDS Key Performance Features:
- 3-Way Storage: Exclusive design allows storage on three different positions without oil leaking into the cylinders.
- Front-Mounted Shift Lever: Provides easier and faster gear shifting (F-N-R) for safer docking.
- Tiller Handle Vibration Reduction: Engineered to minimize hand fatigue during long periods of operation.
- Shallow Water Drive: Multiple tilt positions allow for safe navigation in thin water.
- Large Carry Handles: Ergonomically placed handles make it easy for one person to mount and dismount the motor.
Frequently Asked Questions
1. Does this model require an external battery?
No, the MFS4DDS is a purely manual recoil start motor and does not require a battery for operation.
2. Can I connect a 3-gallon external fuel tank?
Yes, while it has an integrated tank, it is equipped with a built-in external fuel connector for use with a separate fuel tank and line (sold separately).
Tohatsu Authorized Dealer | Verified 4hp 4-Stroke Data | MPN: MFS4DDS
