Yamaha 300hp V6 HPDI vs Mercury 275hp Verado (L6)
300hp V6 HPDI
275hp Verado (L6)
| Spec | Yamaha 300hp V6 HPDI | Mercury 275hp Verado (L6) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 300 HP | 275 HP |
| Displacement | 3344 cc ← | 2598 cc |
| Configuration | 6 Cyl / V6 76° | 6 Cyl / Inline 6 Supercharged |
| Weights & Dimensions | ||
| Dry Weight | 244 kg (538 lbs) ← | 288 kg (635 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 1.75:1 | 1.85:1 |
| Alternator | 630 W | 1008 W ← |
| Fuel Delivery | HPDI (High Pressure Direct Injection) | EFI + Supercharger |
| Maintenance | ||
| Spark Plug | NGK BKR7HSU (Surface Gap) | NGK ILFR6G-E |
| Engine Oil | Yamalube 2-M | Mercury 25W-40 Synthetic |
Technical Comparison Analysis
Power & Displacement
Comparing the Yamaha 300hp V6 HPDI and Mercury 275hp Verado (L6) shows a displacement difference of 746cc. The Yamaha features a larger 3344cc 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 244kg, offering a weight saving of 44kg 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 1008W 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.