Worcester Bosch
Worcester Bosch Module ZM434 8718585372
The Worcester Bosch ZM434 module is a service component for Boulter Buderus 4321 and 4322 appliances.
At a glance
- Also known as 2246215
Showing prices
£371.93
£309.94 ex. VAT · VAT at 20%
Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The ZM434 is a Worcester Bosch module supplied for Boulter Buderus 4321 and 4322 appliances. It is a service component within the appliance assembly. The part number is 8718585372.
Signs this part needs replacing
- The appliance fails to respond to controls or does not power on.
- Intermittent operation or unexpected shutdowns.
- Error codes relating to the module are displayed.
- Visible damage, corrosion, or loose connections on the module.
Before you order
- Confirm your appliance model is listed in the Fits section.
- Check the part number 8718585372 against the module you are replacing.
- Inspect the existing module's connections and mounting to ensure a match.
- Refer to the manufacturer's parts list for your specific appliance.
Compliance
| Alternative numbers | 2246215 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER BOULTER BUDERUS 4321 GB/IE | — | — | — | |
| WORCESTER BOULTER BUDERUS 4322 GB/IE | — | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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 technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.