Mercury SeaPro 55hp vs Tohatsu MFS50 EFI
SeaPro 55hp
MFS50 EFI
| Spec | Mercury SeaPro 55hp | Tohatsu MFS50 EFI |
|---|---|---|
| Power & Performance | ||
| Horsepower | 55 HP | 50 HP |
| Displacement | 967 cc ← | 866 cc |
| Configuration | 2 Cyl / Inline-3 | 3 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 100 kg (221 lbs) | 95 kg (209 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 1.64 | 2.08:1 |
| Alternator | 210 W | 252 W ← |
| Fuel Delivery | EFI | EFI |
| Maintenance | ||
| Spark Plug | NGK BP8H-N-10 | NGK IKR6G8 |
| Engine Oil | Tohatsu 4-Stroke Oil | |
Technical Comparison Analysis
Power & Displacement
Comparing the Mercury SeaPro 55hp and Tohatsu MFS50 EFI shows a displacement difference of 101cc. The Mercury features a larger 967cc block, which typically provides superior low-end torque and better hole-shot performance when pushing heavy loads or reaching planning speeds.
Weight & Rigging
In terms of transom weight, the Tohatsu is the lighter option at 95kg, offering a weight saving of 5kg over its competitor. This weight reduction is critical for smaller hulls or boats with limited transom capacity where every kilogram affects the center of gravity and drainage efficiency.
Electrical & Features
For boats equipped with modern electronics, sonar, and shallow-water anchors, the Tohatsu offers the best charging performance with a 252W alternator. Choosing the right power-to-weight profile between these two 2-stroke engines depends heavily on your specific boat's displacement and daily power requirements.