WESTERBEKE 38B-4 37HP

Product Specification Listing for Marine Engine: Westerbeke 38B-4 37HP

General Information

• Brand: Westerbeke
• Model: 38B-4
• Type: Marine Diesel Engine
• Power Output: 37 HP (27.6 kW) at 3000 RPM

Performance

• Maximum Horsepower: 37 HP (27.6 kW)
• Rated RPM: 3000 RPM
• Idle RPM: 850 +/- 25 RPM
• Displacement: 116 cubic inches (1.9 L)
• Cylinders: 4 in-line

Dimensions and Weight

• Length: 30.6 inches (777 mm)
• Width: 20.2 inches (513 mm)
• Height: 30.5 inches (775 mm)
• Dry Weight: 445 lbs (202 kg)

Fuel System

• Fuel Type: Diesel
• Fuel Consumption: Approximately 0.39 gallons per hour (1.5 liters per hour) at 2600 RPM
• Injection System: Indirect
• Fuel Injection Pump: Bosch type

Cooling System

• Cooling Method: Freshwater cooled with heat exchanger
• Raw Water Pump: Gear-driven
• Coolant Capacity: 10.9 quarts US (10.3 liters)

Electrical System

• Starting System: 12V Electric starter motor
• Alternator Output: 51 Amps at 12V
• Battery Charging: Standard

Lubrication System

• Oil Capacity: 5.0 quarts US (4.7 liters)
• Oil Pressure: 55-64 PSI (3.8-4.4 kg/cm²) at operating RPM with normal oil temperature
• Lubrication Type: Forced lubrication from gear type pump

Exhaust System

• Exhaust Type: Wet Exhaust
• Exhaust Elbow Diameter: 1.75 inches (44 mm)

Transmission (optional)

• Transmission type: Mechanical or Hydraulic
• Gear Ratio: Various options available

Additional Features

• Instrumentation Panel: Includes tachometer, hour meter, oil pressure gauge, coolant temperature gauge, battery voltage gauge, and warning lights.
• Control System: Single lever engine control capable.
• Optional Accessories: Propeller shaft couplings, engine mounts, control panels, hot water heaters, etc.

Compliance and Certifications

• Emissions Compliance: EPA Tier 2 compliant
• ISO Certification: ISO 9001

Applications

Ideal for sailboats, small trawlers, and other similar vessels requiring reliable, efficient marine propulsion.

Warranty

• Standard Warranty: 2 years limited warranty

Please contact Westerbeke or an authorized dealer for detailed installation requirements, customization options, and extended warranty plans.

Note: Specifications are subject to change. Always refer to the official Westerbeke documentation and user manual for the most accurate and detailed information.