Pierburg "CWA200“

Pierburg's electric water pump in the medium capacity range.

  • Robust and innovative design
  • Brushless canned motor
  • Integrated variable speed controller
  • Controllable via PWM
  • Reliable and maintenance free
  • High delivery rates

Pierburg CWA200

Pierburg was the world's first series-production supplier of an electric coolant pump to BMW.
With matched cooling demand and supply a reduced fuel consumption was easily achieved.
Suitable for engine cooling in combustion engine vehicles and cooling of bigger systems in electrical vehicles.


  • Name: "Pierburg CWA200"
  • Operation voltage: 8-16 volts
  • Weight: approx. 2.15 kg
  • Current consumption: 15A (16.5A max.) / (approx. 0.2mA in standby mode)
  • Nominal diff. pressure: 0.45 bar *
  • Flow rate: ca. 116 l/min @ 0.45bar / 166 l/min @ 0.30bar
  • Speed: approx. 4500 rpm
  • Temperature range: -40°C – 128°C (water) / -40°C – 140°C (ambient)
  • Protection: IP67

Part numbers:

  • Pierburg: 7.02851.20.0 / 7.02851.20.8 / 7.00294.17.0
  • BMW: 11517586925 / 11517586924 / 11517563183 / 11517546994 / 11517545201 / 11517521584


CWA200 Datasheet EN (pdf)

3D CAD files:
CWA200 3D CAD (zip)

PWM Info:
CWA PWM Info (pdf)

Technical drawing:


Flow rate:





* Pump pressure is not the same as the system pressure.
Those pumps can of course be used in normal automotive cooling systems with system pressures
in the range of 0.8 to 1.2 bar for instance.
The pump pressure or differential pressure expresses the ´resistance´ of which the pump has to work against.
Tip: A mechanical thermostat is responsible for about half of that resistance. (in most cars)


We will gladly provide you with our controller (tinyCWA) to control the pump.
Just write us an email in this matter or take a look at our online store.
There you will also find product bundles and accessories. :-)