WESTERBEKE engine Manuals & Parts Catalogs WESTERBEKE diesel engines Spare parts catalogs, Service & Operation Manuals. Spare parts for marine engines. Westerbeke has a good technical library. See below links to appropriate pages or technical manual. Also you can download PDF lists with parts catalogs, Service (workshop) manuals, Wiring diagrams and Specifications with direct links to the document. Document Library - Westerbeke 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.