Wolf CGB-35 circulation pump Wilo Yonos FOR RS 20/7.5-PWM1 Ku M Ref. 2072005
The circulator pump Wolf 2072005 is the Wilo Yonos PARA RS 20/7.5-PWM1 Ku M, a high-efficiency pump with PWM1 control that circulates water through the heating circuit of the boiler. It is compatible with the Wolf CGB-35, CGB-50, and CGB-K-40-35. It operates at 230 V, consumes between 4 and 75 W, and has a mounting length of 130 mm. It is sold refurbished, tested, and comes with a 1-year warranty.
- Type of part
- Pumps
- Status
- Refurbished
- internal SKU
- BOM055
- Warranty
- 1 year
VAT included Stock · 2 units
Wolf compatible boilers
Circulating pump. Three confirmed compatibilities: CGB-35 and CGB-50.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Wolf CGB-35 | Wolf | Contrasted |
| Wolf CGB-50 | Wolf | Contrasted |
| Wolf CGB-K-40-35 | Wolf | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if it is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Look for the white label with the WOLF logo, attached to the casing of the electronics (the one with the Wilo logo). It should say "Mat.-Nr. 2072005" and "Pumpe Hocheffizienz RS 20/7.5 130".
- Check the label on the motor body. It should say "Yonos PARA RS20/7.5-PWM1 Ku M", 4528131, 1~230 V, 50/60 Hz, 4–75 W, and 0.66 A max.
- Measure the mounting length between outlets: it is 130 mm.
- Compare the code of your pump. The 8616283 is the substitute and is a different pump. The Wilo Yonos PARA RS 15/7.5 is another variant. The 2070347 and 2070348 are other Wolf pump codes: we do not consider them equivalent.
- Before installing it, check that the PWM1 signal is properly connected. It must be installed by a qualified technician.
- If your pump has a different code or you have questions about your model, send us a photo of the label and the PCB of the boiler from Contact, or call 911 17 77 77.
Technical sheet: Wolf circulator pump
- Uniclima internal SKU
- BOM055
- Brand
- Wolf
- Type of part
- Pumps
- Units in stock
- 2 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Reference
- 2072005 (Wolf material number)
- Pump
- Wilo Yonos FOR RS 20/7.5-PWM1 Ku M
- Wilo number
- 4528131
- Wolf designation
- High-efficiency pump RS 20/7.5 130
- Other codes from the Wilo label
- 17W04 · 1702195
- Control
- PWM1 signal
- Power supply
- 1~230 V · 50/60 Hz
- Power
- 4–75 W
- Maximum intensity
- 0.66 A
- Efficiency
- EEI ≤ 0.21
- Protection
- IPX4D
- Water temperature
- Up to 95 °C (TF95)
- Nominal pressure
- PN 6
- Installation length
- 130 mm
- Status
- Refurbished and tested. 1-year warranty.
Before purchasing
- Do not confuse with 8616283: Substitute from Wolf for this pump. It is another high-efficiency pump (Wilo Para Ku20/8-75/PWM1, "high-efficiency pump 35/50 kW"). Compare dimensions and connection before replacing it.
- Do not confuse with Wilo 4529980: Wilo Yonos PARA RS 15/7.5. It is another variant.
- Do not confuse with 2070347 · 2070348: Other Wolf codes for the heating circuit pump of these boilers: 2070347 (CGB-35 and CGB-K-40-35) and 2070348 (CGB-50). They are different codes from this spare part. Compare the code of your pump.
Frequently asked questions about the circulation pump
What pump is the Wolf 2072005?
The Wilo Yonos PARA RS 20/7.5-PWM1 Ku M is a high-efficiency circulator pump with PWM1 control and a mounting length of 130 mm. Wolf refers to it as "Pumpe Hocheffizienz RS 20/7.5 130" on the casing.
Is it compatible with my Wolf CGB-35, CGB-50, or CGB-K-40-35?
Yes. It is compatible with the Wolf CGB-35, CGB-50, and CGB-K-40-35. For another boiler, call 911 17 77 77 or send us a photo of its PCB from Contact.
Is the 8616283 the same pump?
No. The 8616283 is the replacement that Wolf provides for the 2072005, but it is a different pump: the "Hocheffizienzpumpe 35/50 kW" (Wilo Para Ku20/8-75/PWM1). If you plan to use the 8616283, compare the dimensions and connection first.
How is it controlled and how much does it consume?
With a PWM1 signal. It operates at 230 V and 50/60 Hz, consumes from 4 to 75 W, and the label indicates a maximum of 0.66 A.
Why does my Wolf boiler have a different pump code?
For the heating circuit pump of these boilers, Wolf also uses the codes 2070347 (CGB-35 and CGB-K-40-35) and 2070348 (CGB-50). The 2072005 is another Wolf code and is compatible with all three boilers. We do not consider the codes to be the same: compare your pump code and, if in doubt, consult us at 911 17 77 77 or send us a photo of the label.
Is it sold tested and with a warranty? Who should install it?
It is sold refurbished, tested, and with a 1-year warranty. It must be installed by a qualified technician: it is a 230 V pump from the heating circuit.