Mercury 150 FourStroke vs Johnson 135hp Crossflow V4
150 FourStroke
135hp Crossflow V4
| Spec | Mercury 150 FourStroke | Johnson 135hp Crossflow V4 |
|---|---|---|
| Power & Performance | ||
| Horsepower | 150 HP | 135 HP |
| Displacement | 3000 cc ← | 1600 cc |
| Configuration | 4 Cyl / Inline | 4 Cyl / V4 90° |
| Weights & Dimensions | ||
| Dry Weight | 206 kg (454 lbs) | 142 kg (313 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 1.92:1 | 1.86 |
| Alternator | 756 W ← | 126 W |
| Fuel Delivery | EFI | Twin Carbureted |
| Maintenance | ||
| Spark Plug | NGK LFR6A-11 | Champion QL77JC4 |
| Engine Oil | Mercury FourStroke Oil 10W-30 | TC-W3 2-Stroke |
Technical Comparison Analysis
Power & Displacement
Comparing the Mercury 150 FourStroke and Johnson 135hp Crossflow V4 shows a displacement difference of 1400cc. The Mercury features a larger 3000cc 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 Johnson is the lighter option at 142kg, offering a weight saving of 64kg 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 756W alternator. Choosing the right power-to-weight profile between these two 4-stroke engines depends heavily on your specific boat's displacement and daily power requirements.