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4.2 MCG low-CO - 50 Hz

Cylinders: 3
Bore: 2.56 in.
Stroke: 2.61 in.
Displacement: 40.30 cu. in.
Aspiration: Natural

Length: 25.00 in.
Width: 18.20 in.
Height: 17.20 in.
Weight: 334.00 lbs.


Multiport Electronic Fuel Injection

 

Low-CO, Low-Profile, Low-Speed
The 4.2 MCG is one of the most compact low-CO, low-speed gasoline generators on the market. Westerbeke's unique marine design allows for a high performance generator, comparable in size, to high speed competitors. The lower operating speed of the 4.2 MCG combined with a heavy duty industrial base engine contribute to a longer lasting more reliable product.

 

Multiport EFI and Returnless Fuel System
The 4.2 MCG features sequential multiport electronic fuel injection (MPI). MPI provides optimum fuel efficiency, easy starting, improved reliability and reduced emissions. Inconjunction with MPI, electronic speed control maintains the engine at a constant speed (precise frequency regulation) and virtually eliminates “bogging down” when load is applied. A water cooled returnless fuel system aids in the prevention of vapor lock for improved performance in high ambient temperatures. MPI also features advanced diagnostic capabilities.

 

Smooth and Quiet Operation
Featuring a 3-cylinder engine with a balance shaft that virtually eliminates vibration, the 4.2 MCG is an extremely smooth running 4.2kW. The engine also operates at an electronically controlled 1500 rpm for exceptionally quiet operation. In comparison, 3000-rpm engines are generally noisier than their 1500-rpm counterparts and require sound shields to attain similar noise levels.

 

Five Year Limited Warranty
The 4.2 MCG is backed by Westerbeke's 5-year limited warranty. The presence of Westerbeke in over 65 countries around the world provides customers with easy access to parts, service and technical support. Established in 1937, Westerbeke is committed to providing its customers with quality products and unequaled after sales support.

Standard Features

  • Simple, "one-touch" start/stop control panel
    with running hour meter and LED lights
  • Multiport electronic fuel injection
  • Electronic governing
  • Safety shut-downs-overspeed, low oil
    pressure, high exhaust temperature and more 
  • Fresh water cooling and coolant recovery tank
  • Field convertible to 50 or 60Hz
  • A.C. circuit breaker
  • 12 amp battery charger
  • 90° water injected exhaust elbow
  • Belt-driven, raw water pump
  • Vibration isolators
  • Lube oil drain hose
  • Belt guard
  • Operators' manual and parts list
  • EPA & CARB compliant
  • Meets U.S.C.G. regulation 33CFR-183

 

Optional Equipment

  • Remote start/stop panel
  • Remote lube oil filter
  • Ship-shore transfer switch
  • Hydro-hush muffler

 

  • Anti-siphon valve
  • Technical Manual
  • "A" on board spare parts kit
  • "B" extended cruising spare parts kit

 

 

 

Technical Documents

Important Note: Technical information is provided on our website for your reference and convenience. Westerbeke recommends that your engine, generator or climate control system is serviced and/or installed only by an authorized Westerbeke distributor or dealer. Click here to locate the Master Distributor or Dealer for your area.

Advanced Specifications
Document Name Publication Date
  Advanced Specifications 3/1/2013
Manuals (Operators, Parts, Technical, Installation)
Document Name Publication Date
  Installation Manual - Marine Engines & Generators 6/1/2016
  Operator's Manual 055570 3/1/2016
  Westerbeke Superseded Parts Listing August 2015 8/1/2015
  Parts Callout Drawing 55535 8/5/2014
  Technical Manual 055743 7/1/2014
Guides (Troubleshooting)
Document Name Publication Date
  LOW PROFILE CAPACITOR EXCITED AC GASOLINE GENERATORS TROUBLESHOOTING GUIDE 9/27/2007
Diagrams (Wiring, Installation)
Document Name Publication Date
  Wiring Diagram 055536 Revision C 3/15/2016
  Installation Drawing 55567 9/24/2012
Bulletins (Service, Parts, Product Recalls)
Document Name Publication Date
  Service Bulletin #273: MCG Fuel System Bleed Procedure

7/14/2014
  Service Bulletin #268: PC Interface Cable Driver and latency timer modification

5/3/2013
  Parts Bulletin 2014-1: Sea Water Pump and Kit

Applies To: All Gasoline Models BCG, BEG, SBEG, MCG, 55B/C/D

1/14/2013
  Parts Bulletin 2008-6: Fuel Filter 047006

Applies To:

3/9/2009
  Parts Bulletin 2008-4: Paint Storage

Applies To: All Models

11/24/2008
  Service Bulletin #238: Fuel Pump Inlet Filter Part Number 048076

2/28/2003

 

 

 

Buy and View Parts Below : Click each image for a larger view and detailed list of the parts for that section. If images do not appear under a "Complete Parts Lists" heading, please scroll down to access the parts related information available for this model.

 

Download Parts Documentation
Document Name Publication Date
  Parts Callout Drawing 55535 8/5/2014
Superseded Parts List
Document Name Publication Date
  Westerbeke Superseded Parts Listing August 2015 8/1/2015