Description
Worcester Bosch GB/ZBR Auto Air Vent replacement part with manufacturer part number 8738900323. This exact item is a genuine, brand-new Worcester product. It is intended for the compatible appliances shown below, where listed. Match the boiler model and MPN before ordering.
Product Details
Brand: Worcester
Manufacturer part number (MPN): 8738900323
Condition: Genuine brand new
Warranty: 12 Months
Boiler Compatibility
Check the exact appliance model and manufacturer part number before ordering. See the GC Number tab for the verified GC references.
This part fits the following 8 appliances:
Listed compatible appliances
- Worcester GB162 100 SYSTEM NG
- Worcester GB162 50 SYSTEM NG
- Worcester GB162 65 SYSTEM NG
- Worcester GB162 80 SYSTEM NG
- Worcester GB162 V2 100KW SYSTEM NG
- Worcester GB162 V2 50KW SYSTEM NG
- Worcester GB162 V2 65KW SYSTEM NG
- Worcester GB162 V2 80KW REGULAR NG
Before you order
Use the manufacturer part number as your main check. Do not rely on a similar-looking part. Compare the appliance model and the GC Number tab before ordering.
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Help and returns
For help checking this part, message us on WhatsApp. This genuine part includes a 12-month warranty. Returns are subject to the 30-day returns policy.
Product check
Clear identification matters. Check the manufacturer part number before you order.
Installation and testing should be completed by a suitably qualified professional where required.
Technical FAQs
How do I check that this is the correct replacement part?
Use manufacturer part number 8738900323 as the main check. Match it to the old part or your appliance documentation, not only to a similar-looking product.
Will this part fit my boiler?
This part is listed for 8 appliance model(s). Check your exact boiler model, MPN and GC Number tab before ordering.
Can I use a similar-looking replacement part instead?
No. Small differences in connections, ratings or boiler versions can matter. Confirm the exact MPN before ordering.
Will fitting this part fix my boiler fault?
A replacement part alone does not confirm the cause of a fault. Correct diagnosis and testing are needed before fitting any part.
Who should fit and test this part?
Installation and testing should be completed by a suitably qualified professional where required. This exact item is a genuine, brand-new Worcester product.











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