Worcester Bosch
Worcester Bosch O-Ring 7mm x 2.5mm 87161408170
Worcester Bosch 7mm x 2.5mm O-ring, pack of 10, for CDi, CDiXtra, Greenstar, Greenstar ErP, SBi, I Junior and I Series boiler hydraulics.
At a glance
- Part type: O-rings, gaskets, seals and washers
- Also known as 1017559
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Showing prices
£3.95
£3.29 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 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 Worcester Bosch 87161408170 is a 7mm x 2.5mm O-ring supplied as a pack of ten. It is a sealing component used in the hydraulics of Worcester Bosch boilers, covering the CDi, CDiXtra, Greenstar, Greenstar ErP, SBi, Bosch, I Junior and I Series ranges. O-rings, gaskets and washers sit at the joints between components and pipework, and this one is used where a gas-tight or water-tight seal is required, including around heat exchangers and gas valves.
Signs this part needs replacing
- Water weeping or dripping from a joint on the hydraulic side of the boiler
- A gas smell, or a failed tightness test traced back to a valve or heat exchanger connection
- The O-ring looks flattened, hardened, cracked or swollen once the joint is opened
- Repeated system pressure loss with no obvious leak elsewhere
- Staining or residue around a component joint after the boiler has been running
Before you order
- Check the GC number and model on the appliance data badge against the compatibility list before ordering.
- The alternative part number 1017559 identifies the same item.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
- If several seals are being disturbed during the same repair, check whether a gasket or seal kit is needed alongside this pack.
Mechanical
| Part type | O-Rings & Lip Seals |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 87161408170 |
|---|---|
| GC number | E01-304 |
| Barcode / EAN | 4010009581376 |
| Commodity code | 4016 93 00 90 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1017559 |
Logistics
| Pack quantity | 10 |
|---|
| 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 24i JUNIOR RSF LPG | 47-311-71 | 47-311-71 | — | — |
| WORCESTER 24i JUNIOR RSF NG | 47-311-69 | 47-311-69 | — | — |
| WORCESTER 24i RSF COMBI NG (NOV 2004) | 47-311-37 | 47-311-37 | — | — |
Showing 10 of 96 compatible appliances.
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.
manual
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 — 24i JUNIOR RSF LPG (GC 47-311-71), 24i JUNIOR RSF NG (GC 47-311-69), 28i JUNIOR RSF NG (FEB 2003) (GC 47-311-72), 28i JUNIOR RSF NG (MAY 2003) (GC 47-311-70)
manualmanualWORCESTER appliance manual — 24i RSF COMBI NG (NOV 2004) (GC 47-311-37), 24i RSF COMBI NG (SEP 2001) (GC 47-311-37)
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 — 28i RSF NG (GC 47-311-54)
manualmanualWORCESTER appliance manual — 35 CDI II RSF LPG (GC 47-311-59), 35 CDI II RSF NG (GC 47-311-58)
manualmanualWORCESTER appliance manual — 35 CDI RSF LPG (GC 47-311-40), 35 CDI RSF NG (GC 47-311-39)
manualmanualWORCESTER appliance manual — GREENSTAR 12RI LPG (GC 41-311-64), GREENSTAR 12RI NG (GC 41-311-63), GREENSTAR 15RI CONVENTIONAL LPG (GC 41-311-76), GREENSTAR 15RI CONVENTIONAL NG (GC 41-311-75), GREENSTAR 18RI CONVENTIONAL LPG (GC 41-311-78), GREENSTAR 18RI CONVENTIONAL NG (GC 41-311-77), GREENSTAR 24RI LPG (GC 41-311-66), GREENSTAR 24RI NG (GC 41-311-65)
manualmanualWORCESTER appliance manual — GREENSTAR 12Ri ErP LPG (GC 41-406-42), GREENSTAR 12Ri ErP NG (GC 41-406-41), GREENSTAR 15Ri ErP LPG (GC 41-406-44), GREENSTAR 15Ri ErP NG (GC 41-406-43), GREENSTAR 18Ri ErP LPG (GC 41-406-46), GREENSTAR 18Ri ErP NG (GC 41-406-45), GREENSTAR 24Ri ErP LPG (GC 41-406-48), GREENSTAR 24Ri ErP NG (GC 41-406-47)
manualmanualWORCESTER appliance manual — GREENSTAR 12Ri ErP+ LPG (GC 41-406-69), GREENSTAR 12Ri ErP+ NG (GC 41-406-75), GREENSTAR 15Ri ErP+ LPG (GC 41-406-70), GREENSTAR 15Ri ErP+ NG (GC 41-406-76), GREENSTAR 18Ri ErP+ LPG (GC 41-406-71), GREENSTAR 18Ri ErP+ NG (GC 41-406-77), GREENSTAR 21Ri ErP+ LPG (GC 41-406-72), GREENSTAR 21Ri ErP+ NG (GC 41-406-78), GREENSTAR 24Ri ErP+ LPG (GC 41-406-73), GREENSTAR 24Ri ErP+ NG (GC 41-406-79), GREENSTAR 9Ri ErP+ LPG (GC 41-406-68), GREENSTAR 9Ri ErP+ NG (GC 41-406-74)
manualmanualWORCESTER appliance manual — GREENSTAR 12i SYSTEM LPG (GC 41-311-69), GREENSTAR 12i SYSTEM NG (GC 41-311-67), GREENSTAR 15I SYSTEM LPG (GC 41-406-26), GREENSTAR 15I SYSTEM NG (GC 41-311-84), GREENSTAR 18I SYSTEM LPG (GC 41-311-87), GREENSTAR 18I SYSTEM NG (GC 41-311-86), GREENSTAR 24i SYSTEM LPG (GC 41-311-70), GREENSTAR 24i SYSTEM NG (GC 41-311-68)
manualmanualWORCESTER appliance manual — GREENSTAR 24I JUNIOR MK5 LPG (GC 47-406-55), GREENSTAR 24I JUNIOR MK5 NG (GC 47-406-54), GREENSTAR 24I JUNIOR NG (GC 47-311-86), GREENSTAR 24i JUNIOR LPG (GC 47-311-90), GREENSTAR 28I JUNIOR MK5 LPG (GC 47-406-57), GREENSTAR 28I JUNIOR MK5 NG (GC 47-406-56), GREENSTAR 28i JUNIOR LPG (GC 47-311-91), GREENSTAR 28i JUNIOR NG (GC 47-311-87)
manualmanualWORCESTER appliance manual — GREENSTAR 25SI COMBI LPG (GC 47-311-88), GREENSTAR 25SI COMBI NG (GC 47-311-84), GREENSTAR 30 SI COMBI LPG (GC 47-311-89), GREENSTAR 30 SI COMBI NG (GC 47-311-85)
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