Westerbeke Logo


20.0 EDER

Cylinders: 4
Bore: 3.43 in.
Stroke: 3.64 in.
Displacement: 134.10 cu. in.
Aspiration: Natural

Length: 50.00 in.
Width: 24.20 in.
Height: 31.30 in.
Weight: 933.00 lbs.

All New Industrial Model - 20.0 EDER!

Digital Controls - Continuous Monitoring and Diagnostics
The 20.0 EDER has digital controls offering simplified and easy tounderstand information on operational status and, if necessary, system diagnostics.  Westerbeke also features "at a glance" illuminated lights indicating proper operation. They monitor battery voltage, generator voltage, generator frequency, oil pressure and coolant temperature. All this information may be viewed from a distance-all green lights indicate referenced systems are functioning properly. Further details are available on the screen display. The user may conveniently scroll for operational or diagnostic information without encountering "codes". Westerbeke uses text so the user does not have to refer to a manual to dicipher numeric information.

Lightweight, Ready-to-go operation and Convenient single-side service
166.7 amps at only 933 pounds plus full instrumentation make the 20.0 EDER ready to go when you need it. And when you need to perform scheduled preventative maintenance easy single side serviceablility makes the job a snap.

Full torque, Full power PTO for power/rescue options
The 20.0EDER has the exclusive PTO to drive special options for power and rescue. Use the PTO to power high output DC alternatiors, or add an electric clutch and drive a compressor to bring air to the scene. Add the XRT Combi package to the 20.0 EDER and you have a combination power rescue package for all your electrical and all your rescue tool needs.

Clean Machines
The 20.0 EDER is a clean machine. The diesel power plant meets all EPA and CARB emission regulations and the generator produces clean stable electricity from a 4-pole backend that has precise regulation.

Generator Set Benefits

  • Compact lightweight design
  • Quiet: runs at 1800 RPM (60 HZ) or 1500 RPM (50 HZ)
  • Tuned air intake silencer
  • Frequency regulation to .3 HZ (.5%) with electronic governing 
  • Built-in power take off interface capable of full engine torque
  • Multi-station remote starting capability
  • Easy-to-read operator’s manual and parts list
  • Emergency stop switch
  • Steel mounting skid
  • Electronic governor 
  • User-friendly trouble-free controls
  • Optimum vibration isolation
  • Electronic voltage regulation
  • A.C. Field Breaker 

Engine Features

  • Low maintenance costs
  • Low fuel consumption
  • "EZ-Bleed" fuel system
  • Easy one-side servicing
  • Water-cooled cast iron block for a longer life
  • Cooling designed for high ambient temperatures
  • 12 or 24 volt starter motor
  • 12 or 24 volt 40 ampere alternator
  • Electric fuel lift pump
  • Safety shut-downs: overspeed, underspeed, low oil pressure and high coolant temperature 
  • Glow plugs for cold weather starting
  • Built-in lube oil drain hose
  • Dry element air filter
  • Full flow lube oil filter
  • Coolant overflow kit
  • Full engine monitoring: battery voltage, generator voltage, generator frequency, oil pressure, coolant temperature

Generator Features

  • Compact lightweight design
  • Brushless – revolving field
  • Single or three phase 
  • Class H insulation
  • Conforms to NEMA temperature rise standards
  • Easy field conversion: 60 HZ or 50 HZ AC output





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 12/1/2013
Manuals (Operators, Parts, Technical, Installation)
Document Name Publication Date
  Westerbeke Superseded Parts Listing August 2015 8/1/2015
  Parts Callout Drawing 54520 2/28/2013
  Installation Manual - Diesel Generators for Mobile Applications 6/1/1999
  Technical Manual 053017 N/A
Guides (Troubleshooting)
No matching records found
Diagrams (Wiring, Installation)
Document Name Publication Date
  Wiring Diagram 054519 4/17/2009
  Installation Drawing 54521 N/A
Bulletins (Service, Parts, Product Recalls)
Document Name Publication Date
  Service Bulletin #274: D-NET Industrial Controls Protection

  Service Bulletin #268: PC Interface Cable Driver and latency timer modification

  Parts Bulletin 2011-1: AC Voltage Sense Resistor Board Change

Applies To: All D-NET Diesel Generators

  PARTS BULLETIN 2010-1.pdf

Applies To: All D-NET and EDER Diesel Generators

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





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 54520 2/28/2013
Superseded Parts List
Document Name Publication Date
  Westerbeke Superseded Parts Listing August 2015 8/1/2015