12D Two

Westerbeke marine diesel engines, Westerbeke marine gas engines and Century marine diesel engines represent over 70 years of industry leading experience in auxiliary marine propulsion.

SKU: 12D2 Category:



Cylinders: 2
Length: 24.50 in.
Bore: 2.99 in.
Width: 20.00 in.
Stroke: 2.76 in.
Height: 20.30 in.
Displacement: 38.75 cu. in.
Weight: 225.00 lbs.
Aspiration: Natural


Advanced Specifications

      12D Two.pdf

Manuals (Operators, Parts, Technical, Installation)

      Installation Manual – Marine Engines & Generators

      039717 Rev. 3 12C 12D Oper. Manual.pdf


      Westerbeke Superseded Parts Listing

      55411 Rev1 12C-12D Two Tech Manual.pdf

Diagrams (Wiring, Installation)


      ENGINEER – 12D_TWO_ZF10M_54871.pdf

Bulletins (Service, Parts)

      Parts Bulletin 2010-2: Piston Wrist Pin Size Change

      Parts Bulletin 2008-4: Paint Storage
Applies To: All Models

      Service Bulletin #242: Manufacture Date Code

      Parts Bulletin 2007-2: Fuel Filter 030200

      Service Bulletin #155: Keyswitch

      Service Bulletin #136: Shift Lever

      Service Bulletin #125: Oil Pressure Switches

Please Note: While every attempt is made to ensure the information on this site is accurate, this data is provided for information purposes only and is subject to change.

Additional information

Weight 225 lbs


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