Suzuki
Suzuki DF300B: specifications
The Suzuki DF300B is an outboard rated at 300 hp with V6 (six-cylinder V) architecture.
Key figures
- Power
- 300hp
- Dry weight
- 330kg
- Displacement
- 4,390cm³
- Alternator output
- 54A
- Indicative price
- 32,790€
- Maximum warranty
- 5years
Sources and technical context
Document year: 2019.
Manufacturer's official documentation. The original document link has not yet been recorded for this page.
Notes and conditions (FR)
Tarif public officiel Suzuki France sept. 2025. Indicative source price: request a quote for your country, date and required configuration.
Technical specifications
Block & combustion
| Architecture | V6 |
|---|---|
| Cylinders | 6 |
| Cycle | 4-stroke |
| Displacement | 4,390 cm³ |
| Bore × stroke | 98 × 97 mm |
| Compression ratio | 10,5:1 |
| Max rpm | 5300–6300 rpm |
| Specific output | 68 hp/L |
| Fuel system | EFI + Lean Burn (2 injecteurs/cyl.) |
| Min. fuel | RON 91 (87 mini) |
Transmission & gearcase
| Gear ratio | 2,29:1 |
|---|---|
| Propeller configuration | Bi-hélice contrarotative |
| Counter-rotating dual prop | Yes |
| 2-speed gearbox | No |
| Counter-rotating version | Yes |
| Available shafts | X/XX (25"/30") |
Weight & footprint
| Dry weight (transom load) | 330 kg (25") |
|---|---|
| Power-to-weight ratio | 0.91 hp/kg |
Electrical charging
| Alternator (max) | 54 A |
|---|---|
| Usable charge (low rpm) | 54 A |
| Amps per horsepower | 0.18 A/hp |
Control & integration
| Digital throttle & shift (DBW) | Yes |
|---|---|
| Control | DBW / SPC |
| Steering | Hydraulique |
| Power steering | No |
| Docking joystick | No |
| GPS position hold | No |
| Direct injection | No |
| VTEC (variable timing) | No |
Cost & warranty
| Public price | 32,790 € |
|---|---|
| Cost per horsepower | 109 €/hp |
| Base warranty | 5 years |
| Maximum warranty (conditional) | 5 years |
Operation & compliance
| Emissions standard | RCD 2013/53/UE |
|---|
Head to head with its direct rivals
Prices, warranties and test conditions are not harmonised. They remain visible but do not determine strengths or rankings.
Side-by-side figures for the DF300B against Honda BF300 · Mercury Pro XS V8 300 · Parsun F300 EFI, on the criteria that drive the purchase.
| Criterion | DF300B | Honda BF300 | Mercury Pro XS V8 300 | Parsun F300 EFI |
|---|---|---|---|---|
| Power hp | 300 | 300 | 300 | 300 |
| Dry weight kg | 330 | 355 | 229✓ | 285 |
| Power / weight hp/kg | 0.91 | 0.85 | 1.31✓ | 1.05 |
| Alternator output A | 54 | n/a | 85 | n/a |
| Cost per hp €/hp | 109 | 111 | 125 | n/a |
| Base warranty years | 5 | 3 | 3 | 2 |
An index requires at least two criteria documented for every compared engine. “n/a” means the available data cannot assess this use; it is not a poor rating.