Bosch W 125 butane spare parts
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In brief
Instalpunt supplies 50 original parts for the Bosch W 125 butane, including sensors, gas valves and gas control, ignition and ionisation. Order online.
- 50Spare parts
- 26In stock
- €10.59From
- 14Types
Looking for parts for the Bosch W 125 butane (instantaneous water heater)? Below are all 50 original parts, grouped by part type. Choose a type to jump straight to the right table.
Quick left to the right part for the Bosch W 125 butane
| Part | From | Delivery |
|---|---|---|
| Ignition part Nefit ignition electrode for e.g. F 1400 87081070020 | €21.55 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
| Display Bosch hot water knob | €17.23 | In-stock items usually arrive within 3–5 working days, made-to-order items within 5–7 working days (a longer lead time is shown on the product page). |
Prices incl. VAT, taken directly from our checkout. Below is the complete parts list for this model.
Installer or self-employed engineer? Create a business account: prices excl. VAT and invoices in your company name.
- Sensors 1
- Gas valves and gas control 5
- Ignition and ionisation 2
- Thermostats and controls 1
- Burners 2
- Displays and controls 3
- Filters 1
- Valves 3
- Tap parts 1
- Cables and wiring harnesses 2
- Gaskets and seals 10
- Pipes, tubes and hoses 2
- Casing and panels 4
- Fixing material 3
- Other parts 10
Sensors for the Bosch W 125 butane (1) all Bosch sensors →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit maximum protection | 8185018 Mfr. no. 8738717111 | €36.67 | In stock | View & order |
Gas valves and gas control for the Bosch W 125 butane (5) all Bosch gas valves and gas control →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit injector natural gas 10 pcs | 8184190 Mfr. no. 87082021440 | €28.03 | Made-to-order item | View & order |
| Nefit injector bottled gas 10 pcs | 8184194 Mfr. no. 87082021310 | €33.43 | Made-to-order item | View & order |
| Bosch venturi for W135 TZ-1 | 8180680 Mfr. no. 87082052600 | €32.35 | Made-to-order item | View & order |
| Bosch pilot injector 10 pcs | 8181589 Mfr. no. 87082001380 | €47.47 | Made-to-order item | View & order |
| Bosch venturi W135 T2-1 | 8185024 Mfr. no. 87082052000 | €30.19 | Made-to-order item | View & order |
Ignition and ionisation for the Bosch W 125 butane (2) all Bosch ignition and ionisation →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit ignition electrode for e.g. F 1400 87081070020 | 8035001 Mfr. no. 87081070020 | €21.55 | In stock | View & order |
| Nefit piezo igniter | 8185017 Mfr. no. 87481080230 | €24.79 | In stock | View & order |
Thermostats and controls for the Bosch W 125 butane (1) all Bosch thermostats and controls →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch thermostatic element Oxystop | 8180470 Mfr. no. 87072020240 | €75.55 | In stock | View & order |
Burners for the Bosch W 125 butane (2) all Bosch burners →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit pilot burner Oxystop | 8180610 Mfr. no. 87081057170 | €51.79 | In stock | View & order |
| Nefit burner for e.g. W 135 natural gas 87081206580 | 8180641 Mfr. no. 87081206580 | €250.51 | Made-to-order item | View & order |
Displays and controls for the Bosch W 125 butane (3) all Bosch displays and controls →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch hot water knob | 8185104 Mfr. no. 87020001020 | €17.23 | In stock | View & order |
| Bosch cold water knob | 8185105 Mfr. no. 87020001030 | €17.23 | In stock | View & order |
| Bosch temperature selector knob grey | 8180310 Mfr. no. 87020001040 | €25.87 | Made-to-order item | View & order |
Filters for the Bosch W 125 butane (1) all Bosch filters →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit water strainer 10 pcs | 8036118 Mfr. no. 87005070010 | €45.31 | Made-to-order item | View & order |
Valves for the Bosch W 125 butane (3) all Bosch valves →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch slow ignition valve W135/WR250/32 | 8180730 Mfr. no. 87085030630 | €20.47 | In stock | View & order |
| Bosch water flow regulator W135 new version | 8180530 Mfr. no. 87074020180 | €53.95 | In stock | View & order |
| Bosch pressure relief valve/drain screw | 8189688 Mfr. no. 87034061530 | €23.71 | Made-to-order item | View & order |
Tap parts for the Bosch W 125 butane (1) all Bosch tap parts →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit pilot injector (12) 10 pcs | 8181620 Mfr. no. 87482001200 | €36.67 | In stock | View & order |
Cables and wiring harnesses for the Bosch W 125 butane (2) all Bosch cables and wiring harnesses →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit high-voltage lead for e.g. F 1455 87044010230 | 8185093 Mfr. no. 87044010230 | €22.63 | In stock | View & order |
| Bosch ionisation cable for e.g. W 135 natural gas 87144017590 | 8184221 Mfr. no. 87144017590 | €23.71 | Made-to-order item | View & order |
Gaskets and seals for the Bosch W 125 butane (10) all Bosch gaskets and seals →
Pipes, tubes and hoses for the Bosch W 125 butane (2) all Bosch pipes, tubes and hoses →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit pilot line 4mm | 8181449 Mfr. no. 87107071660 | €48.55 | In stock | View & order |
| Bosch reducer W135 | 8184061 Mfr. no. 87033050010 | €23.71 | Made-to-order item | View & order |
Casing and panels for the Bosch W 125 butane (4) all Bosch casing and panels →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch water housing cover | 8181395 Mfr. no. 87055001450 | €53.95 | In stock | View & order |
| Bosch water housing top section | 8189298 Mfr. no. 87055001460 | €53.95 | In stock | View & order |
| Bosch guide plate | 8181707 Mfr. no. 87010001430 | €61.51 | Made-to-order item | View & order |
| Bosch casing W125/135 | 8184164 Mfr. no. 87054014650 | €138.19 | Made-to-order item | View & order |
Fixing material for the Bosch W 125 butane (3) all Bosch fixing material →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch temperature selector screw W135TZ | 8180710 Mfr. no. 87085002090 | €26.95 | In stock | View & order |
| Nefit screw 87034010510, 10 pcs | 8184119 Mfr. no. 87034010510 | €24.79 | Made-to-order item | View & order |
| Bosch clamping screw | 8185053 Mfr. no. 87034010460 | €25.87 | Made-to-order item | View & order |
Other parts for the Bosch W 125 butane (10)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit tap seal 10 pcs | 8180320 Mfr. no. 87032040030 | €37.75 | In stock | View & order |
| Nefit magnet insert for e.g. W 135 natural gas 87072010120 | 8180420 Mfr. no. 87072010120 | €55.03 | In stock | View & order |
| Bosch tap spindle | 8180690 Mfr. no. 87085000160 | €26.95 | In stock | View & order |
| Bosch water section for e.g. W 135 natural gas 87070023510 | 8180398 Mfr. no. 87070023510 | €253.75 | In stock | View & order |
| Bosch make-up spindle | 8185098 Mfr. no. 87085002870 | €40.99 | In stock | View & order |
| Nefit overpressure pin | 8180180 Mfr. no. 87005030130 | €25.87 | Made-to-order item | View & order |
| Bosch threaded piece for e.g. W 135 natural gas 87033051490 | 8184062 Mfr. no. 87033051490 | €34.51 | Made-to-order item | View & order |
| Bosch gas section W125 butane | 8189463 Mfr. no. 87070110900 | €227.83 | Made-to-order item | View & order |
| Bosch threaded bush | 8180330 Mfr. no. 87034061070 | €25.87 | Made-to-order item | View & order |
| Nefit draught diverter W125 | 8185043 Mfr. no. 87055053160 | €130.63 | Made-to-order item | View & order |
Fault code on your Bosch W 125 butane? This is the part type involved
Common Bosch fault codes and the part type that is usually the cause; the parts for this model are listed above.
| Code | What is going on | Part type |
|---|---|---|
| 2P564 | Temperature sensor temperature rising too fast (> 70 K/min). | Sensors |
| 8C373 | The burner thermostat has measured an excessive temperature more often than permitted. | Burners |
| 8C374 | Insufficient ionisation current has been measured during firing more often than permitted. | Ignition and ionisation |
| 9A235 | The KIM is too new for the burner control unit. | Burners |
| 9U233 | The burner control unit or the KIM is faulty. | Burners |
| 227 V | No flame signal after ignition | Ignition and ionisation |
For guidance only: the same code can have a different cause depending on the situation.
Other Bosch instantaneous water heaters
- Bosch HR 8000S (WTD27 AME) 73
- Bosch Kelvin WR 11H (GWH 11) 37
- Bosch Kelvin WR 11P (GWH 11P) 33
- Bosch Kelvin WR 14H (GWH 14) 28
- Bosch Kelvin WR 14P (GWH 14P) 25
- Bosch Kelvin WR 18H (GWH 18) 30
- Bosch Kelvin WR 18P (GWH 18P) 26
- Bosch WR 200-1 AM P 58
- Bosch WR 200-5 AM 98
- Bosch WR 250-1 AM0 E 19
- Bosch WR 250-1 AM0 P 58
- Bosch WR 250-5 AM 46
Frequently asked questions
Which parts are available for the Bosch W 125 butane?
The catalogue lists 50 original parts for the Bosch W 125 butane, including sensors, gas valves and gas control, ignition and ionisation, thermostats and controls. All parts are listed above, grouped by type, with part number and price.
How much does a sensor for the Bosch W 125 butane cost?
The sensors for this model cost €35.28 incl. VAT. Check the table "Sensors" above for the right part number.
Are the parts for the Bosch W 125 butane in stock?
26 of the 50 parts are in stock; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days. Parts marked "Made-to-order item" are ordered specially for you; the delivery time is shown on the product page.
How do I know which part I need for the Bosch W 125 butane?
Search for the part by part number or use the parts list of the Bosch W 125 butane. Is your appliance showing a fault code? The fault code table shows the matching part type.
Are these original Bosch parts?
Yes. All 50 parts in this list are original manufacturer parts for the Bosch W 125 butane, delivered with the correct part number.
How much do parts for the Bosch W 125 butane cost?
Parts for the Bosch W 125 butane range from €10.59 to €337.31 incl. VAT. The exact price of each part is shown in the tables above.
Can I return a part?
As a consumer you have a 14-day right of withdrawal. You may unpack and inspect the part; do not install or connect it. For a part that has been installed, connected or damaged we deduct the diminished value, up to the full price for circuit boards.