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The Beta Marine Engine – Beta 43 is a marinized 4‑cylinder diesel engine delivering 43 hp (32 kW) at 2,800 RPM. With a displacement of 1,999 cc and weighing approximately 243 kg, it’s perfect for sailboats of 38–42 ft (10–12 tons), offering smooth, quiet performance and rugged durability.
Key Features
- 4‑cylinder naturally aspirated Kubota‑based engine.
- Displacement: 1,999 cc; bore 80 mm × stroke 92.4 mm.
- Fresh‑water heat exchanger, wet exhaust manifold, and intake silencer.
- Heavy‑inertia flywheel, oil‑change pump, standard shutdown solenoid.
- 65 A serpentine‑belt alternator (upgradeable to 70–100 A).
- ABV control panel, flexible mounts & coupling included.
- TMC 60 gearbox standard (multiple gearbox options available).
Duty Cycle & Usage
- Application: Mid‑size marine propulsion
- Load Factor: 40%–80%
- Annual Use: Up to ~2,000 hours/year
- Installation Angles: ≤ 15° static / ≤ 25° when heeling
Technical Specifications: Beta 43 Marine Engine
| Power Output | 43 hp (32 kW) @ 2,800 RPM |
|---|---|
| Cylinders | 4 inline |
| Displacement | 1,999 cc |
| Bore & Stroke | 80 × 92.4 mm |
| Cooling System | Fresh/raw water heat exchanger Wet exhaust manifold |
| Fuel System | Indirect injection, mechanical governor, fuel & oil filters |
| Alternator | 65 A @ 12 V (upgradeable to 70–100 A) |
| Transmission | TMC 60 (~2:1); other gearbox options available |
| Dry Weight | ≈ 243 kg |
| Start System | 12 V electric starter |
| Control Panel | ABV with tachometer, hour meter & alarms |
Operating Conditions
- Ambient Temp: Up to 45 °C
- Fuel Type: EN 590 marine diesel
- Installation Angles: ≤ 15° static / ≤ 25° when heeling
Applications
The Beta 43 Marine Engine is ideally suited for:
- Sailboats 38–42 ft (10–12 tons displacement)
- Classic yachts, tenders, and light trawlers
- Atomic 4 repower projects
- Medium‑displacement retrofit installations
kW 32
RPM 2800
Duty Mid‑size marine propulsion
Emissions RCD II / Recreational Craft Directive compliant
