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W 27A

Cylinders: 4
Bore: 2.87 in.
Stroke: 3.07 in.
Displacement: 80.00 cu. in.
Aspiration: Natural

Length: 32.63 in.
Width: 16.85 in.
Height: 22.68 in.
Weight: 424.00 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 N/A
Manuals (Operators, Parts, Technical, Installation)
Document Name Publication Date
  Installation Manual - Marine Engines & Generators 6/1/2016
  Westerbeke Superseded Parts Listing August 2015 8/1/2015
  Operator's Manual 036195 7/1/1986
  Parts Manual 032139 7/1/1986
  Technical Manual 043440 N/A
Guides (Troubleshooting)
No matching records found
Diagnostic Software
No matching records found
Diagrams (Wiring, Installation)
No matching records found
Bulletins (Service, Parts, Product Recalls)
Document Name Publication Date
  Parts Bulletin 2013-1 valve diameter change

Applies To:

  Parts Bulletin 2013-3: Model Reference Clarification Parts List 032139

Applies To:

  Parts Bulletin 2008-4: Paint Storage

Applies To: All Models

  Parts Bulletin 2007-2: Fuel Filter 030200

Applies To:

  Parts Bulletin 2006-4 Parts List #036776

Applies To:

  Service Bulletin #242: Manufacture Date Code

  Parts Bulletin 2004-7 Tech Manual 30041.pdf

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

  Service Bulletin #155: Keyswitch

  Service Bulletin #136: Shift Lever

  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.


Complete Parts Lists

Download Parts Documentation
Document Name Publication Date
  Parts Manual 032139 7/1/1986
Superseded Parts List
Document Name Publication Date
  Westerbeke Superseded Parts Listing August 2015 8/1/2015