Cox Marine
Cox Marine CXO300 — specifications
The Cox Marine CXO300 is a 300 hp outboard engine. This page gathers its specifications as published in the manufacturer's official documentation and lets you put it head to head with its direct rivals.
Key figures
- Power
- 300hp
- Dry weight
- 393kg
- Displacement
- 4,400cm³
- Alternator output
- 100A
- Indicative price
- n/a
- Maximum warranty
- 5years
Technical specifications
Block & combustion
| Architecture | V8 |
|---|---|
| Cylinders | 8 |
| Cycle | 4-stroke |
| Displacement | 4,400 cm³ |
| Bore × stroke | 84,0 × 98,5 mm |
| Compression ratio | n/a |
| Max rpm | 3700-4000 tr/min |
| Specific output | 68 hp/L |
| Fuel system | Diesel — injection directe common rail haute pression, bi-turbo |
| Min. fuel | n/a |
Transmission & gearcase
| Gear ratio | 1,23:1 |
|---|---|
| Propeller configuration | n/a |
| Counter-rotating dual prop | No |
| 2-speed gearbox | No |
| Counter-rotating version | No |
| Available shafts | n/a |
Weight & footprint
| Dry weight (transom load) | 393 kg (moteur nu, arbre standard) |
|---|---|
| Power-to-weight ratio | 0.76 hp/kg |
Electrical charging
| Alternator (max) | 100 A |
|---|---|
| Amps per horsepower | 0.33 A/hp |
Control & integration
| Digital throttle & shift (DBW) | Yes |
|---|---|
| Control | dbw |
| Steering | — |
| Power steering | No |
| Docking joystick | No |
| GPS position hold | No |
| Direct injection | Yes |
| VTEC (variable timing) | No |
Cost & warranty
| Public price | n/a |
|---|---|
| Cost per horsepower | n/a |
| Base warranty | 5 years |
| Maximum warranty (conditional) | 5 years |
Competing engines
Similar power outputs from other manufacturers — open the comparator to put them side by side.
Data provenance
- Specification source
- Manufacturer's official documentation
- Data year
- 2021
Indicative price, base configuration (excl. options, rigging, discounts). It varies by market, model year and dealer — never a firm quote. Confirm with a dealer.
It is provided for guidance only. Despite systematic cross-checking (≥ 2 sources for sensitive values), discrepancies, rounding or outdated information remain possible. Any unpublished value is marked “n/a” — never estimated.