Worcester Bosch
Worcester Bosch O-Ring 3.0 x 22.5mm Yellow 87161408010
Worcester Bosch O-ring, 3.0 x 22.5mm, yellow, for sealing joints on CDI and SBI boiler models; part 87161408010.
At a glance
- Part type: Gaskets, O-rings, seals and washers
- Also known as 1017531
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£4.15
£3.46 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 a Worcester Bosch O-ring with a 3.0mm section and a 22.5mm inner diameter, supplied in yellow. It is a sealing component used at joints and connections within Worcester Bosch boiler assemblies, where it compresses between mating faces to stop water escaping. The part carries Worcester Bosch number 87161408010 and is listed against a broad spread of CDI and SBI appliance variants.
Signs this part needs replacing
- Water weeping or a visible drip trail at the joint the O-ring seals
- The ring has hardened, flattened or taken a set, so it no longer springs back when squeezed
- Cracks, splits or a nibbled edge on the ring surface
- Scale, sludge or old sealant sitting on the sealing face and breaking the seal
- A joint that leaks again shortly after being stripped and rebuilt
Before you order
- Check the appliance GC number and serial plate against the compatibility list to confirm the ring suits your model.
- Compare the old ring against the 3.0mm x 22.5mm dimensions, and note the previous Worcester Bosch number ZMMIS140 when matching against older literature.
- If several seals are disturbed during the same repair, check whether a full gasket and seal kit is the better route.
- 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 | Yellow |
Compliance
| Manufacturer part number (MPN) | 87161408010 |
|---|---|
| GC number | E00-701 |
| Barcode / EAN | 4010009723080 |
| Commodity code | 4016 93 00 00 |
| Alternative numbers | ZMMIS140, 1017531 |
| Previous numbers | ZMMIS140 |
| 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)
manualNo 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.