Evinrude 20hp (2-Stroke) vs Mercury 18hp (2-Stroke)
20hp (2-Stroke)
18hp (2-Stroke)
| Spec | Evinrude 20hp (2-Stroke) | Mercury 18hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 20 HP | 18 HP |
| Displacement | 360 cc ← | 300 cc |
| Configuration | 2 Cyl / Inline | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 38 kg (84 lbs) ← | 39 kg (86 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 2.15 | 2.0 |
| Alternator | 60 W | 60 W |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | Champion L77JC4 | NGK B7HS |
| Engine Oil | TC-W3 2-Stroke | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Evinrude 20hp (2-Stroke) and Mercury 18hp (2-Stroke) shows a displacement difference of 60cc. The Evinrude features a larger 360cc 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 Evinrude is the lighter option at 38kg, offering a weight saving of 1kg 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 Mercury offers the best charging performance with a 60W 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.