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

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

Pierburg CWA400

The CWA400 is the next development stage of the very successful principle the CWA200 used.
(A brushless and fully canned motor for instance)
This pump is supplying more than double the hydraulic performance at nearly the same dimensions.
Suitable mainly for engine cooling in combustion engine vehicles.


  • Name: "Pierburg CWA400"
  • Operation voltage: 8-16 volts
  • Weight: approx. 2.15 kg
  • Current consumption: 35.5A (36.3A max.)/ (approx. 0.2mA in standby mode)
  • Nominal diff. pressure: 0.85 bar *
  • Flow rate: approx. 150l/min @ 0.85bar / 220l/min @ 0.55bar
  • Speed: approx. 5900 rpm
  • Temperature range: -40°C – 128°C (water) / -40°C – 140°C (ambient)
  • Protection: IP67

Part numbers:

  • Pierburg: 7.03665.66.0
  • BMW: 11517604027 / 11518625097 / 11518635089
SKU 132-003
Brand Pierburg
Shipping Weight 2.2500kg
MPN: 7.03665.66.0

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