WESTERBEKE 55A-4 55.3HP

Marine Engine Product Specification Listing: Westerbeke 55A-4 (55.3 HP)

General Information:

• Brand: Westerbeke
• Model: 55A-4
• Engine Type: Marine Diesel Engine
• Power Output: 55.3 HP (41 kW) at 3000 RPM

Engine Specifications:

• Configuration: In-line 4-cylinder
• Displacement: 2.4 liters (2400 cc)
• Bore x Stroke: 88 mm x 94 mm
• Aspiration: Naturally Aspirated
• Cooling System: Freshwater Cooling with Heat Exchanger
• Starting System: Electrical Start – 12V

Fuel System:

• Fuel Type: Diesel
• Fuel Injection: Direct Injection
• Fuel Consumption: (variable, typically around 1.5 - 2.5 GPH under cruising conditions)
• Fuel Filter: Primary and Secondary Fuel Filters

Lubrication and Cooling:

• Lubrication System: Forced Lubrication with Full Flow Spin-On Oil Filter
• Cooling System: Freshwater Cooled with Heat Exchanger
• Oil Capacity: Approximately 4.5 liters

Electrical System:

• Alternator: 12V, 51 Amp
• Battery: Standard Marine Battery (12V recommended)
• Instrumentation: Standard Westerbeke Instrument Panel (Tachometer, Oil Pressure, Temperature Gauge, Hour Meter)

Dimensions and Weight:

• Length: Approximately 908 mm (35.7 in)
• Width: Approximately 597 mm (23.5 in)
• Height: Approximately 755 mm (29.7 in)
• Dry Weight: Approximately 315 kg (694 lbs)

Exhaust System:

• Exhaust Type: Wet Exhaust Manifold
• Exhaust Outlet: 75 mm (3 in)

Performance and Reliability:

• Max RPM: 3000 RPM
• Operating RPM Range: 1200 - 3000 RPM
• Engine Mounts: Adjustable, Anti-Vibration Mounts
• Transmission: Compatible with multiple marine gearboxes, typically including standard transmissions by Hurth or equivalent.

Maintenance Considerations:

• Service Intervals: Recommended oil changes every 100 hours or annually
• Recommended Oil: SAE 15W-40 marine diesel engine oil
• Spare Parts Availability: Widely available through Westerbeke’s dealer network

Key Features:

• Durable and Reliable: Designed for long-term use in marine environments
• Smooth Operation: Built with precision components for reduced vibration and noise
• Ease of Maintenance: Accessible component layout for quick servicing
• Compliance: Meets emission standards for marine engines

Included Accessories:

• Engine Mounts
• Primary and Secondary Fuel Filters
• Instrument Panel
• Exhaust Mixing Elbow
• Owner’s Manual and Installation Guide

Optional Accessories:

• Remote Instrumentation Panels
• Sound Enclosures
• Additional Alternator Upgrades
• Extended Warranty Packages

Contact Information: For more information, purchasing, or technical support, please contact your nearest Westerbeke dealer or visit Westerbeke’s official website.

This product specification listing provides an overview of the key features and technical details of the Westerbeke 55A-4 marine engine, designed to meet the needs of a wide range of marine applications.