Cox Marine CXO300 Diesel V8 vs Yamaha 300hp V6 Offshore (Digital (DEC))
CXO300 Diesel V8
300hp V6 Offshore (Digital (DEC))
| Spec | Cox Marine CXO300 Diesel V8 | Yamaha 300hp V6 Offshore (Digital (DEC)) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 300 HP | 300 HP |
| Displacement | 4400 cc ← | 4169 cc |
| Configuration | 8 Cyl / V8 60° | 6 Cyl / V6 60° DOHC |
| Weights & Dimensions | ||
| Dry Weight | 393 kg (867 lbs) | 255 kg (562 lbs) ← |
| Mechanical & Electrical | ||
| Gear Ratio | 1.23:1 | 1.75:1 |
| Alternator | 0 W | 882 W |
| Fuel Delivery | Common Rail Direct Injection | EFI with VCT |
| Maintenance | ||
| Spark Plug | None (Diesel) | NGK LFR6A-11 |
| Engine Oil | 15W-40 Synthetic Diesel | Yamalube 4-M |
Technical Comparison Analysis
Power & Displacement
Comparing the Cox Marine CXO300 Diesel V8 and Yamaha 300hp V6 Offshore (Digital (DEC)) shows a displacement difference of 231cc. The Cox Marine features a larger 4400cc 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 Yamaha is the lighter option at 255kg, offering a weight saving of 138kg 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 Yamaha offers the best charging performance with a 882W 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.