Buderus
Buderus UPMO 5M 25 PWM circulation pump 8738903380
Genuine Buderus/Sieger PWM circulation pump (UPMO 5M 25 GG 3H), part number 8738903380, for BK 11 W boilers.
At a glance
- Part type: PWM circulation pump
- Also known as 8925453
- Have the work carried out by a Gas Safe registered engineer
£370.50
£308.75 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
This is Buderus's PWM-controlled circulation pump, model UPMO 5M 25 GG 3H, part number 8738903380. It supersedes the earlier 7100757 and circulates water through the boiler and heating circuit.
Signs this part needs replacing
- Little or no heat reaching radiators despite the boiler firing
- Pump is noisy, humming or not spinning freely
- Pump leaking from the seal
- Boiler locking out on a low-flow or pump fault
Before you order
- Confirm the part number printed on your existing pump matches 8738903380
- Check your exact BK 11 W variant against the fitment above
- Isolate power and drain the relevant part of the system before removal
- Have the work carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | 8925453 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BUDERUS 800-24 | 41-110-19 | 41-110-19 | — | — |
| BUDERUS 800-29 | 41-110-20 | 41-110-20 | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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