Worcester Bosch
Worcester Bosch O-Ring Red 3.53mm x 26.6mm 87161408000
Worcester Bosch O-Ring 87161408000, red, 3.53mm x 26.6mm, sealing component for a range of Worcester Bosch gas boilers.
At a glance
- Part type: Gaskets, o-rings, seals and washers
- Also known as 1017529
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£4.30
£3.58 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
A red O-ring supplied by Worcester Bosch under part number 87161408000. It is a circular elastomer seal that sits between two mating faces inside the appliance, compressing to close the joint and stop water or gas escaping past it. This type of seal is used across a number of Worcester Bosch boiler assemblies, where it is normally replaced whenever the joint is broken for servicing or repair.
Signs this part needs replacing
- Water weeping or a visible drip at the joint the seal sits in
- Crusting, chalky staining or corrosion around the mating faces
- A seal that has flattened, hardened or cracked when the joint is opened
- Repeated pressure loss on the appliance with no other obvious cause
- Damp patches or residue tracking down nearby components
Before you order
- Check the GC number and serial number on the appliance data badge against the compatibility list before ordering.
- Confirm the previous number ZMMIS231 if you are matching against older documentation or an existing stock label.
- Inspect the joint for other worn seals while it is open, as more than one o-ring is often disturbed during the same repair.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Gaskets, o-rings, seals and washers |
|---|---|
| Colour | Red |
Compliance
| Manufacturer part number (MPN) | 87161408000 |
|---|---|
| GC number | 299-464 |
| Barcode / EAN | 4010009581222 |
| Commodity code | 4016 93 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | ZMMIS231, 1017529 |
| Previous numbers | ZMMIS231 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER 15 SBI NG | 41-311-43 | 41-311-43 | — | — |
| WORCESTER 24 CDI BF NG | 47-311-29 | 47-311-29 | — | — |
| WORCESTER 24 CDI OF LPG | 47-311-33 | 47-311-33 | — | — |
| WORCESTER 24 CDI OF NG | 47-311-32 | 47-311-32 | — | — |
| WORCESTER 24 CDI RSF LPG | 47-311-31 | 47-311-31 | — | — |
| WORCESTER 24 CDI RSF NG | 47-311-30 | 47-311-30 | — | — |
| WORCESTER 24 SBI RSF NG | 41-311-44 | 41-311-44 | — | — |
| WORCESTER 26 CDI RSF NG | 47-311-41 | 47-311-41 | — | — |
| WORCESTER 26 CDI XTRA RSF LPG | 47-311-42 | 47-311-42 | — | — |
| WORCESTER 26 CDI XTRA RSF NG | 47-311-41 | 47-311-41 | — | — |
Showing 10 of 27 compatible appliances.
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.
WORCESTER appliance manual — 15 SBI NG (GC 41-311-43), 24 SBI RSF NG (GC 41-311-44)
manualmanualWORCESTER appliance manual — 24 CDI BF NG (GC 47-311-29)
manualmanualWORCESTER appliance manual — 24 CDI OF LPG (GC 47-311-33), 24 CDI OF NG (GC 47-311-32)
manualmanualWORCESTER appliance manual — 24 CDI RSF LPG (GC 47-311-31), 24 CDI RSF NG (GC 47-311-30)
manualmanualWORCESTER appliance manual — 26 CDI RSF NG (GC 47-311-41), 26 CDI XTRA RSF LPG (GC 47-311-42), 26 CDI XTRA RSF NG (GC 47-311-41)
manualmanualWORCESTER appliance manual — 28 CDI RSF LPG (GC 47-311-35), 28 CDI RSF NG (GC 47-311-34)
manualmanualWORCESTER appliance manual — 35 CDI II RSF LPG (GC 47-311-59), 35 CDI II RSF NG (GC 47-311-58)
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