2017 Tohatsu 20 HP MFS20DEFS Outboard Motor
The Tohatsu 20hp outboard motor model MFS20DEFS with its 15 inch shaft and tiller steering delivers performance, reliability and convenience with either manual rope or electric start. The 20 hp Tohatsu engine is an excellent source of power for medium to larger sized aluminum fishing boats, skiffs, and inflatables as well as heavier sailboats.
Standard features on this single carb water cooled engine include Forward, Neutral and Reverse shift lever on the front of the motor, an external 3.1 gallon gas tank and Tohatsu’s 5 year warranty.
2017 Tohatsu 20 HP MFS20DEFS Outboard Motor
- Electric Start + 12V 145W 12A Alternator
- Advanced Digital CD Ignition System
- Low Oil Pressure Warning System
- ESG Over Rev RPM Limiter
- High Grade Marine Alloy Construction
- Stainless Steel Water Pump Housing
- Zinc Coated Water Passages
- Easy to Replace Canister Style Oil Filter
- Sacrificial Zinc Anodes + Trim Tab
- Forward-Mounted Gear Shift Lever
- Twist-Grip Throttle with Tension Control
- Adjustable Steering Friction Setting
- Full Thru-Cowl Manual Start Retained
- Tuned Intake for Crisp Acceleration
- Carburetor Accelerator Pump
- Start-In-Gear Protection
- Thermostatically Controlled Cooling
- Advanced Cross Flow Induction System
- Shallow Water Drive; 6 Trim Positions
- Quiet Through-the-Propeller Exhaust
- 3.1 Gallon Fuel Tank / Fuel Line
- Safety Lanyard Cut-Off Switch
- Operating Manual & Emergency Tool Kit
- Tohatsu 5-Year Warranty
2017 Tohatsu 20 HP MFS20DEFS Outboard Motor
| Model | MFS20DEFS |
| Model Year | 2017 |
| SKU | MFS20DEFS-17 |
| Weight | 120.5000 |
| Manufacturer | Tohatsu |
| Country of Manufacture | Japan |
| Horsepower | 20hp |
| Shaft Length | 15″ (Short) |
| Steering | Tiller |
| Starting | Electric |
| Trim & Tilt | Manual |
| Fuel Delivery | Carburetor |
| Fuel Tank | External |
| Cylinder(s) | 2 |
| Displacement | 351 cc (21.41 cubic inches) |
| Bore and Stroke | 61 x 60 mm (2.40 x 2.36 inches) |
| Full Throttle RPM Range | 5,400-6,100 RPM |
| Ignition System | Digital CD Ignition |
| Induction Scavenging | SOHC |
| Valves per Cylinder | 2 |
| Fuel Type | Unleaded Gasoline (87 octane) |
| Fuel Tank / Fuel Line | 3.1 Gal. Fuel Tank + Quick Connect Fuel Line |
| Oil Type | SAE 10W-30 or SAE 10W-40 (SF, SG, SH, SJ) |
| Oil Capacity | 1 Quart (1000 ml) |
| Lubrication | Wet Sump |
| Alternator | 12V 145W 12A (standard on elec. start models) |
| Cooling System | Water-Cooled, Thermostatically Controlled |
| Saltwater Rated | Yes |
| Gear Ratio | 2.15:1 |
| Gear Shift | Forward-Neutral-Reverse (front mount shifter) |
| Propeller | 9.2″ Dia. X 9.8″ Pitch 3-Blade Aluminum |
| Internal Battery | No |
2017 Tohatsu 20 HP MFS20DEFS Outboard Motor
What’s in the box?
- Fuel Tank (3.1 gallon)
- Quick Connect Fuel Line
- Aluminum Propeller
- Owner’s Manual & Tool Kit
- Tohatsu 5-Year Warranty

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