Worcester Bosch
Worcester Bosch Primary Filter System 87161484110
Worcester Bosch primary filter system, part 87161484110, for Highflow 400 combi and electronic boiler models. Protects the primary circuit from debris.
At a glance
- Part type: Filters
- Appliance family: Worcester Highflow 400
- Also known as 1019275
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£6.60
£5.50 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
The primary filter system is a Worcester Bosch component that sits in the primary water circuit of the appliance and traps circulating debris before it reaches the heat exchanger and other hydraulic parts. It is built for the Highflow 400 family of combi and electronic boilers, where system water quality has a direct effect on reliability. Keeping the primary side clean reduces the risk of blockages, poor circulation and premature component wear.
Signs this part needs replacing
- Sludge or black iron oxide debris visible in the filter housing or bowl
- Reduced primary flow, with the boiler running hotter than usual or cycling
- Cold spots or uneven heat across the radiators despite correct system pressure
- Noise from the pump or heat exchanger caused by circulating particles
- Filter body, seal face or connection showing damage, weeping or corrosion
Before you order
- Check the GC number and appliance serial plate against the compatibility list to confirm the correct filter for your model.
- Cross-check the alternative numbers WB87161484110 and 1019275 against any documentation supplied with the appliance.
- Inspect the filter seals and connections while the system is drained, and replace any worn sealing components as required.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Filters |
|---|---|
| Appliance family | Worcester Highflow 400 |
Compliance
| Manufacturer part number (MPN) | 87161484110 |
|---|---|
| GC number | E82-406 |
| Commodity code | 8421 21 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | WB87161484110, 8-716-148-411-0, 1019275 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER HIGHFLOW 400 BF COMBI LPG | 47-311-22 | 47-311-22 | — | — |
| WORCESTER HIGHFLOW 400 BF COMBI NG | 47-311-19 | 47-311-19 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC BF NG | 47-311-62 | 47-311-62 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC FSN NG | 47-311-61 | 47-311-61 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC FSP NG | 47-311-64 | 47-311-64 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC OF NG | 47-311-63 | 47-311-63 | — | — |
| WORCESTER HIGHFLOW 400 OF COMBI LPG | 47-311-23 | 47-311-23 | — | — |
| WORCESTER HIGHFLOW 400 OF COMBI NG | 47-311-20 | 47-311-20 | — | — |
| WORCESTER HIGHFLOW 400 RSF COMBI LPG | 47-311-21 | 47-311-21 | — | — |
| WORCESTER HIGHFLOW 400 RSF COMBI NG | 47-311-18 | 47-311-18 | — | — |
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 — HIGHFLOW 400 BF COMBI LPG (GC 47-311-22), HIGHFLOW 400 BF COMBI NG (GC 47-311-19)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 ELECTRONIC BF NG (GC 47-311-62), HIGHFLOW 400 ELECTRONIC FSP NG (GC 47-311-64), HIGHFLOW 400 ELECTRONIC OF NG (GC 47-311-63), HIGHFLOW 400 OF COMBI LPG (GC 47-311-23), HIGHFLOW 400 OF COMBI NG (GC 47-311-20)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 ELECTRONIC FSN NG (GC 47-311-61)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 RSF COMBI LPG (GC 47-311-21), HIGHFLOW 400 RSF COMBI NG (GC 47-311-18)
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