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BETA 25 Marine Engine Sales

BETA 25 Marine Engine Sales, this engine is suitable for boats with displacement of 5-6 tons with a water line length (LWL) of 27-34 feet.

  • Horse Power: 25 @ 3600 rpm
  • Cylinders: 3
  • Bore: 72mm/2.83″
  • Stroke: 73.6mm/2.9″
  • Cubic Capacity: 898cc / 54.8 ci
  • Weight: 118kg / 260 lbs
  • Transmission: TMC40 (standard)
  • Alternator: 40 AMP.

 

BETA 25 Marine Engine Standard Options:

 

BETA 25 Marine Engine Sales upgraded Options:

BETA 25 Operators Maintenance Manual

For additional information including pricing and availability, please contact our Engine department.

 

The Beta 25 marine engine requires regular maintenance to ensure optimal performance and longevity. Here’s a general maintenance schedule:

Daily Maintenance:

Monthly Maintenance:

Quarterly Maintenance:

Annual Maintenance:

Every 2-3 Years:

For detailed maintenance schedules and specific procedures, it’s best to refer to the operator’s maintenance manual provided by Beta Marine. You can download the manual from the Beta Marine website or contact your local dealer for assistance.

BETA 25 Marine Engine versus other compatible marine diesel engines

The Beta 25 marine engine is a naturally aspirated, diesel propulsion engine that develops 25 horsepower at 3,600 rpm with a swept volume of 898 cc. Here are some key specifications:

Specifications:

  • Horsepower: 25 @ 3600 rpm
  • Cylinders: 3
  • Bore: 72mm / 2.83”
  • Stroke: 73.6mm / 2.9”
  • Cubic Capacity: 898cc / 54.8 ci
  • Weight: 118 kg / 260 lbs
  • Transmission: TMC 40
  • Alternator: 40 amp (optional 70 amp)
  • Cooling System: Heat exchanger
  • Flywheel: High Inertia Flywheel
  • Exhaust: Standard exhaust injection elbow (optional high rise exhaust elbows available)
  • Dimensions: 14.5” (370mm) mount centers

Compatible Marine Diesel Engines:

  1. Yanmar 3YM20:
    • Horse Power: 21 hp @ 3600 rpm
    • Displacement: 854 cc
    • Weight: 110 kg (243 lbs)
    • Cooling System: Fresh water cooling with heat exchanger
    • Alternator: 125A
  2. Volvo Penta D1-20:
    • Horse Power: 18.8 hp @ 3200 rpm
    • Displacement: 800 cc
    • Weight: 110 kg (243 lbs)
    • Cooling System: Freshwater cooling
    • Alternator: 115A
  3. Bukh 20:
    • Horse Power: 20 hp @ 3600 rpm
    • Displacement: 798 cc
    • Weight: 110 kg (243 lbs)
    • Cooling System: Freshwater cooling
    • Alternator: 50A

Key Differences:

  • Displacement: The Beta 25 has a larger displacement compared to the Yanmar 3YM20 and Volvo Penta D1-20, which may contribute to its higher horsepower.
  • Cooling System: The Beta 25 uses a heat exchanger cooling system, while the Yanmar and Volvo Penta engines use freshwater cooling.
  • Alternator: The Beta 25 offers an optional 70-amp alternator, whereas the Yanmar and Volvo Penta engines come with more powerful standard alternators.

Each engine has its own strengths and may be better suited for different types of boats and applications. Do you have a specific requirement or preference for your marine engine?

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