Wilo Yonos Pico 4169842 Commercial Central Heating Pump Product Code: 83459

Suitable for fluid up to 95°C in hot water, heating, cooling and air conditioning systems. 1½" BSP connection. IP44 rated.


  • Variable or 3 Fixed Speed Settings
  • ErP Compliant
  • 5 Year Manufacturer's Guarantee
  • Quick Connection Plug
  • 5m Max. Delivery Head
  • 1½" BSP Connection
  • -10°C to 95°C Temperature Range
  • 3m³/hr Q Maximum Flow Volume
  • 4kW Max. Applications
  • IP44 Rated


230V. Port to port distance: 130mm. Temperature range: -10 to +95°C. Weight: 2.0kg.
Additional Information
Technical Specification
  • Brand : Wilo
  • Product Type : Commercial Central Heating Pump
  • Power Output (Watts/Kw) : 4 kW
  • IP Rating : IP44
  • Central Heating Pump Product Type : Commercial Pumps
  • Total Product Weight : 2.0 kg
  • Model No : Yonos Pico 4169842
  • Connection Type : 1½" BSP Connection
  • Temperature Range : -10 to +95 °C
  • Pack Size : 1
  • Power Voltage Supply : 230 V
  • Manufacturer Guarantee : 5 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
  • Max Pump Head Size : 5 m
Product Contents
Pump and cable gland.
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

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Was €110.95

Special Price €97.95

Incl. 23% VAT

Save €13.00 (11%)

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Wilo Yonos Pico 4169842 Commercial Central Heating Pump is rated 4.5 out of 5 by 27.
Rated 5 out of 5 by from Excellent replacement CH pump This was a direct replacement for a Wilo Gold 50 pump having spoken directly with Wilo. Swapped out in 15 minutes and another 10 to swap over the electrical connection to the plug. It is exceptionally quiet when running. The auto vent feature also worked well. Time will tell on reliability and performance but early indications are positive.
Date published: 2017-10-16
Rated 5 out of 5 by from Great Purchased as a replacement of a Danlos pump. Self priming too a while to complete (30min) This pump is silent in operation with good clear instructions for fitment
Date published: 2017-09-12
Rated 5 out of 5 by from Great little pump I am a plumber and do maintenance work and local letting agents, I decided to give this a try and was really impressed with it, took literally minutes to swap and really good quality item
Date published: 2017-08-18
Rated 5 out of 5 by from Pump Standard size - replaced original pump, very quiet adjustable speeds - would use again.
Date published: 2017-08-10
Rated 1 out of 5 by from Can't part electrical connecto It should be really obvious and simple but for the life of me I can't get the electrical connector to part so can't wire it up. I've been trying for an hour now. The manual shows exactly how it should part (although only on the last diagram where's it's not being parted but is in fact being put back together) but mine just won't and now the clip has broken. Very annoying.
Date published: 2017-02-05
Rated 5 out of 5 by from Simple Replacement Could not have been easier. As long as you can handle a wrench and a screwdriver, fitting as a replacement pump is foolproof.
Date published: 2016-11-19
Rated 4 out of 5 by from good quality pumps These are good quality and good value from Screwfix. I have been fitting Wilo Pumps for donkeys years and have found them to be as good if not slightly better than Grundfoss. have fitted a few of these Yonos ones since they came out and not been back to a faulty one yet.
Date published: 2016-11-11
Rated 5 out of 5 by from Great alternative to Grundfos Bought this to replace a noisy Grundfos 15- 50 130 pump. Straight swap out, super quiet and much lower energy consumption.
Date published: 2016-11-03
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