BETA 20 Marine Engine Technical Specifications:
- BETA 20 Marine Engine sales
- Power @ 3,600 rpm: 14.9 kW20 hp
- Aspiration: Natural
- Cylinders: 3
- Displacement: 719 cc44 in3
- Weight: 104 kg229 lbs
- Transmission: TMC40 (Standard)
- Alternator: 40 Amp (Standard)
BETA Marine Engine Standard Options:
- 14.5″ (370mm) mount centers
- 40 Amp alternator
- ABV Instrument Panel
- Flexible coupling
- Flexible mounts
- Heat exchanger cooling
- High Inertia Flywheel
- Intake silencer / Air filter
- Oil change pump (fitted)
- Shaft Coupling
- Shallow oil pan
- Standard exhaust injection elbow
- Stop solenoid
- TMC 40 transmission
BETA 20 Marine Engine Sales Transmission Options:
- standard – TMC 40
- Bobtail – No gearbox but with drive plate
- TMC 401.45:1 / 2:1 / 2.6:1
- TMC 60Twin disc/Technodrive 1.55:1 / 2:1 / 2.45:1 / 2.83:1
- TMC 60A 7 degree down angle 2:1 / 2.45:1
- TMC 60 Oil Cooler for running LH in Ahead (NOT for TMC60A)
- PRM 802:1 / 2.5:1
- ZF 15MIV2.13:1 / 2.99:1
BETA 20 Marine Engine Upgraded Options:
- BETA 20 Marine Engine Sales
- Alternator (standard) w/ Serpentine Belt System
- Alternator 75-amp w/ Serpentine Belt Drive System
- High Rise Exhaust Elbow for 1-5/8″ hose
- High Rise Exhaust Elbow for 2″ hose – 150mm rise
- High Rise Exhaust Elbow for 2″ hose – 200mm rise
- High Rise Exhaust Elbow for 2″ hose – Volvo style cross over
- Panel – Type ABVW Waterproof
- Panel – Type B
- Panel – Type C click here for panel dimensions
- Panel – Type CW Waterproof
- Flybridge Panel
- Hot water Fittings
- Insulated Ground Electrical w/ 70 amp Alt
- Keel cooling
- Long term storage (test run on Ensis oil and Calibration fluid)
- Mount and pulley for Sea Frost compressor
- Mounts @ 11.5″ centers (Atomic 4)
- Mounts @ 16″ Centers (Albin Vega)
- Mounts @ 17″ Centers (Farymann A30)
- Panel – Type A
- Panel Extension harness with starter relay
- Panel Recess with clear lid for B panel
- Panel Recess with clear lid for C panel
- PTO Pulley (twin A sections)
- Remote Oil Filter
For additional information including pricing and availability, please contact our Engine department.
BETA 20 Marine Engine Maintenance options and specifications:
The Beta 20 marine engine is a naturally aspirated, diesel propulsion engine that develops 20 horsepower at 3,600 rpm with a swept volume of 719 cc. Here are some key specifications and maintenance options:
Specifications:
- Horse Power: 20 @ 3600 rpm
- Cylinders: 3
- Bore: 67mm / 2.64”
- Stroke: 68mm / 2.68”
- Cubic Capacity: 719cc / 43.9 ci
- Weight: 106kg / 233 lbs
- Transmission: TMC 40
- Alternator: 40 amp with Serpentine Belt Drive (optional upgrades available)
- Dimensions: 14.5” (370mm) mount centers
- Cooling: Heat exchanger cooling
- Flywheel: High Inertia Flywheel
- Exhaust: Standard exhaust injection elbow (optional high rise exhaust elbows available)
Maintenance Options:
- Standard Maintenance: Regular oil changes, filter replacements, and general engine checks.
- Optional Upgrades:
- Alternator: Upgrade to 75 amp with Serpentine Belt Drive System
- Exhaust: High Rise Exhaust Elbow options for different hose sizes
- Panels: Various waterproof panel types (ABVW, B, C)
- Cooling: Keel cooling, hot water fittings
- Electrical: Insulated ground electrical with 70 amp alternator
- Storage: Long term storage options with test run on Ensis oil and Calibration fluid
For detailed maintenance schedules and specific procedures, it’s best to refer to the operator’s maintenance manual provided by Beta Marine.
BETA 20 Marine engine versus Yanmar 20hp marine engine comparison
Sure! Here’s a comparison between the Beta 20 and Yanmar 20hp marine engines:
| Feature | Beta 20 | Yanmar 3YM20 |
|---|---|---|
| Horse Power | 20 hp @ 3600 rpm | 21 hp @ 3600 rpm |
| Cylinders | 3 | 3 |
| Bore x Stroke | 67mm x 68mm | 70mm x 74mm |
| Displacement | 719 cc | 854 cc |
| Weight | 106 kg (233 lbs) | 110 kg (243 lbs) |
| Alternator | 40 amp (optional 70 amp) | 12V – 125A |
| Cooling System | Heat exchanger | Fresh water cooling with heat exchanger |
| Transmission | TMC 40 | KM2P-1 marine gear |
| Dimensions | 14.5” (370mm) mount centers | 694mm x 463mm x 600mm |
| Certifications | EPA Tier III | EPA Tier III, RCD 2 |
| Starting System | 12V starter | Electric start |
Key Differences:
- Displacement: The Yanmar 3YM20 has a larger displacement (854 cc) compared to the Beta 20 (719 cc), which may contribute to its slightly higher horsepower.
- Weight: The Yanmar engine is slightly heavier than the Beta engine.
- Alternator: The Yanmar engine comes with a more powerful alternator (125A) compared to the Beta engine’s standard 40-amp alternator (optional upgrade to 70 amp).
- Cooling System: Both engines use heat exchanger cooling, but the Yanmar engine also includes freshwater cooling.
- Transmission: The Yanmar engine uses the KM2P-1 marine gear, while the Beta engine uses the TMC 40 transmission.
Both engines are reliable and suitable for small craft and sailing applications. The choice between them may depend on specific needs such as power requirements, weight considerations, and alternator capacity. as far as price goes, the BETA 20HP Marine Engine with transmission is 30% on average less than the comparable Yanmar model.
Here’s a comparison between the Beta 20 and Volvo Penta 20hp marine engines:
| Feature | Beta 20 | Volvo Penta D1-20 |
|---|---|---|
| Horse Power | 20 hp @ 3600 rpm | 18.8 hp @ 3200 rpm |
| Cylinders | 3 | 3 |
| Bore x Stroke | 67mm x 68mm | 70mm x 74mm |
| Displacement | 719 cc | 800 cc |
| Weight | 106 kg (233 lbs) | 110 kg (243 lbs) |
| Alternator | 40 amp (optional 70 amp) | 115A |
| Cooling System | Heat exchanger | Freshwater cooling |
| Transmission | TMC 40 | Various options available |
| Dimensions | 14.5” (370mm) mount centers | 694mm x 463mm x 600mm |
| Certifications | EPA Tier III | EPA Tier III, EU RCD |
| Starting System | 12V starter | Electric start |
Key Differences:
- Horse Power: The Beta 20 has a slightly higher horsepower rating compared to the Volvo Penta D1-20.
- Displacement: The Volvo Penta engine has a larger displacement (800 cc) compared to the Beta 20 (719 cc).
- Alternator: The Volvo Penta engine comes with a significantly more powerful alternator (115A) compared to the Beta engine’s standard 40 amp alternator (optional upgrade to 70 amp).
- Cooling System: The Volvo Penta engine uses freshwater cooling, while the Beta engine uses a heat exchanger cooling system.
- Transmission: The Volvo Penta engine offers various transmission options, whereas the Beta engine uses the TMC 40 transmission.
