Worcester Bosch
Worcester Bosch Pilot Burner 87161426350
At a glance
- Also known as WB87161426350, 1018377
- Work on gas-carrying components must be carried out by a Gas Safe registered engineer
AvailabilityCall for price
Availability: no longer made. Call us and we'll check for stock.
No longer made: call us
The manufacturer has discontinued this part. Our team will check for remaining stock or a suitable replacement.
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Unused, in original packaging.
What it is
The Honeywell Q359A1041 is a pilot burner assembly used in a range of Worcester Bosch gas boilers, including the Highflow, Heatslave and 9.24 Electronic families. It provides the standing pilot flame that ignites the main burner on demand. Worcester Bosch lists this assembly under part number 87161426350.
Signs this part needs replacing
- The pilot flame will not light or will not stay lit once the button or ignition sequence is released
- The pilot flame is weak, yellow or lifting away from the burner instead of forming a steady blue flame
- The boiler repeatedly locks out or fails to reach main burner ignition despite a pilot flame being present
- Soot, discolouration or debris is visible around the pilot burner and its surrounding components
- The pilot assembly is visibly corroded, distorted or damaged
Before you order
- Confirm your appliance model and GC number against the fitment list above
- Check the part number on the existing pilot burner assembly before removal
- Work on gas-carrying components must be carried out by a Gas Safe registered engineer
- Verify the appliance is the correct variant (NG, OF or BF) for the assembly being fitted
Mechanical
| Part type | PILOT BURNERS |
|---|
Compliance
| Manufacturer part number (MPN) | 87161426350 |
|---|---|
| GC number | 391-664 |
| Alternative numbers | 1018377 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER 9.24 ELECTRONIC TSW & MK2 BF | 47-311-05 | 47-311-05 | — | — |
| WORCESTER 9.24 ELECTRONIC TSW & MK2 OF | 47-311-04 | 47-311-04 | — | — |
| WORCESTER 9.24 ELECTRONIC TSW & MK2 RSFE | 47-311-07 | 47-311-07 | — | — |
| WORCESTER HEATSLAVE 9.24 MK 1 & MK 1.5 BF | — | — | — | |
| WORCESTER HEATSLAVE 9.24 MK 1 & MK 1.5 OF | — | — | — | |
| WORCESTER HIGHFLOW 3.5 BF COMBI NG | 41-311-39 | 41-311-39 | — | — |
| WORCESTER HIGHFLOW 3.5 OF COMBI NG | 41-311-38 | 41-311-38 | — | — |
| WORCESTER HIGHFLOW 4.5 BF COMBI NG | 41-311-42 | 41-311-42 | — | — |
| WORCESTER HIGHFLOW 4.5 OF COMBI NG | 41-311-41 | 41-311-41 | — | — |
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 — 9.24 ELECTRONIC TSW & MK2 BF (GC 47-311-05), 9.24 ELECTRONIC TSW & MK2 OF (GC 47-311-04), 9.24 ELECTRONIC TSW & MK2 RSFE (GC 47-311-07)
manualmanualWORCESTER appliance manual — HEATSLAVE 9.24 MK 1 & MK 1.5 BF, HEATSLAVE 9.24 MK 1 & MK 1.5 OF
manualmanualWORCESTER appliance manual — HIGHFLOW 3.5 BF COMBI NG (GC 41-311-39), HIGHFLOW 3.5 OF COMBI NG (GC 41-311-38), HIGHFLOW 4.5 BF COMBI NG (GC 41-311-42), HIGHFLOW 4.5 OF COMBI NG (GC 41-311-41)
manualNo technical questions yet for this part.
Not sure which part?
Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.