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Century 120-N6

Cylinders: 6
Bore: 4.13 in.
Stroke: 4.92 in.
Displacement: 396.00 cu. In.
Aspiration: Natural

Length: 49.66 in.
Width: 25.23 in.
Height: 32.54 in.
Weight: 1175 lbs.

This model is no longer in production. Please select from the menu for parts information and technical documents such as advanced specifications, diagrams, manuals and product bulletins.




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 - Old Model 6/1/2002
Manuals (Operators, Parts, Technical, Installation)
Document Name Publication Date
  Operator's Manual 045139 7/1/2016
  Installation Manual - Marine Engines & Generators 6/1/2016
  Westerbeke Superseded Parts Listing August 2015 8/1/2015
  Parts Callout Drawing 48621 2/9/2012
  Technical Manual 047069 N/A
Guides (Troubleshooting)
No matching records found
Diagnostic Software
No matching records found
Diagrams (Wiring, Installation)
Document Name Publication Date
  Wiring Diagram 044781 Revision A 12/12/2008
Bulletins (Service, Parts, Product Recalls)
Document Name Publication Date
  Service Bulletin #255: Heat Exchanger

  Parts Bulletin 2008-4: Paint Storage

Applies To: All Models

  Service Bulletin #242: Manufacture Date Code

  Parts Bulletin 2004-2: Air Intake Silencer

Applies To:

  Parts Bulletin 2002-1: Sea Water Pump

Applies To:

  Service Bulletin #238: Fuel Pump Inlet Filter Part Number 048076

  Service Bulletin #155: Keyswitch

  Service Bulletin #125: Oil Pressure Switches





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 48621 2/9/2012
Superseded Parts List
Document Name Publication Date
  Westerbeke Superseded Parts Listing August 2015 8/1/2015