Bosch ZWR18-6 spare parts
In brief
Instalpunt supplies 97 original parts for the Bosch ZWR18-6, including sensors, temperature sensors and NTC sensors, flow sensors and flow switches. Order online.
- 97Spare parts
- 19In stock
- €3.60From
- 23Types
Looking for parts for the Bosch ZWR18-6 (boiler)? Below are all 97 original parts, grouped by part type. Choose a type to jump straight to the right table.
Quick links to the right part for the Bosch ZWR18-6
| Part | From | Delivery |
|---|---|---|
| Ignition part Bosch electrode set for e.g. SZWN 24-6 87181070760 | €69.95 | In stock |
| Temperature sensor Bosch NTC heat exchanger | €38.95 | In stock |
| Pump Bosch pump UPMO 15-50 TTAO | €323.95 | In stock |
| Heat exchanger Bosch plate heat exchanger for e.g. HRC 30 (ZWB7-26A5S0730) 87154069500 | €238.95 | In stock |
| Display Bosch temperature selector knob | €47.95 | In stock |
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 2
- Temperature sensors and NTC sensors 3
- Flow sensors and flow switches 1
- Pumps 1
- Heat exchangers 2
- Gas valves and gas control 1
- PCBs and controls 2
- Diverter valves and hydroblocks 2
- Ignition and ionisation 1
- Expansion vessels 1
- Burners 1
- Displays and controls 2
- Maintenance and service kits 3
- Valves 5
- Pressure gauges 1
- Electrical parts 5
- Tap parts 1
- Cables and wiring harnesses 4
- Gaskets and seals 16
- Pipes, tubes and hoses 7
- Casing and panels 8
- Insulation 1
- Fixing material 16
- Other parts 11
Sensors for the Bosch ZWR18-6 (2) all Bosch sensors →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch TTB sensor | 8181334 Mfr. no. 87172080660 | €47.95 | In stock | View & order |
| Bosch TTB protection ZWR 24/3 | 8181301 Mfr. no. 87172061640 | €29.95 | Made-to-order item | View & order |
Temperature sensors and NTC sensors for the Bosch ZWR18-6 (3) all Bosch temperature sensors and NTC sensors →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch NTC heat exchanger | 8180990 Mfr. no. 87145000540 | €38.95 | In stock | View & order |
| Bosch NTC (TTB) ZWR-5KE | 8181332 Mfr. no. 87172080640 | €47.95 | Made-to-order item | View & order |
| Bosch NTC sensor ZR/ZWR | 8180970 Mfr. no. 87145000710 | €43.95 | Made-to-order item | View & order |
Flow sensors and flow switches for the Bosch ZWR18-6 (1)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Nefit turbine | 8185170 Mfr. no. 87170021320 | €106.95 | Made-to-order item | View & order |
Pumps for the Bosch ZWR18-6 (1) all Bosch pumps →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch pump UPMO 15-50 TTAO | 8036035 Mfr. no. 8737710972 | €323.95 | In stock | View & order |
Heat exchangers for the Bosch ZWR18-6 (2) all Bosch heat exchangers →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch plate heat exchanger for e.g. HRC 30 (ZWB7-26A5S0730) 87154069500 | 8184199 Mfr. no. 87154069500 | €238.95 | In stock | View & order |
| Bosch heat exchanger for e.g. ZWR18-6 87154063900 | 8184261 Mfr. no. 87154063900 | €466.95 | Made-to-order item | View & order |
Gas valves and gas control for the Bosch ZWR18-6 (1) all Bosch gas valves and gas control →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch venturi (26) | 8181405 Mfr. no. 87182050300 | €29.95 | Made-to-order item | View & order |
PCBs and controls for the Bosch ZWR18-6 (2) all Bosch PCBs and controls →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch display PCB | 8126894 Mfr. no. 87472081500 | €376.95 | Made-to-order item | View & order |
| Bosch PCB for e.g. SZWN 24-6 87483005540 | 8184402 Mfr. no. 87483005540 | €466.95 | Made-to-order item | View & order |
Diverter valves and hydroblocks for the Bosch ZWR18-6 (2) all Bosch diverter valves and hydroblocks →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch three-way valve motor for e.g. HRC 30 (ZWB7-26A5S0730) 87172043450 | 8185134 Mfr. no. 87172043450 | €101.95 | In stock | View & order |
| Bosch three-way valve for e.g. HRC 30 (ZWB7-26A5S0730) 87170100620 | 8184096 Mfr. no. 87170100620 | €172.95 | In stock | View & order |
Ignition and ionisation for the Bosch ZWR18-6 (1) all Bosch ignition and ionisation →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch electrode set for e.g. SZWN 24-6 87181070760 | 8185083 Mfr. no. 87181070760 | €69.95 | In stock | View & order |
Expansion vessels for the Bosch ZWR18-6 (1) all Bosch expansion vessels →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch expansion vessel 11 litre round | 8185202 Mfr. no. 87154071680 | €240.95 | Made-to-order item | View & order |
Burners for the Bosch ZWR18-6 (1) all Bosch burners →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch burner cover for e.g. ZWR18-6 87154063830 | 8184207 Mfr. no. 87154063830 | €376.95 | Made-to-order item | View & order |
Displays and controls for the Bosch ZWR18-6 (2) all Bosch displays and controls →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch temperature selector knob | 8180895 Mfr. no. 87120001040 | €47.95 | In stock | View & order |
| Bosch knob 10 pcs | 8184222 Mfr. no. 87120000460 | €21.95 | Made-to-order item | View & order |
Maintenance and service kits for the Bosch ZWR18-6 (3)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch overhaul set water section | 8181095 Mfr. no. 87005030540 | €29.95 | Made-to-order item | View & order |
| Bosch service set for e.g. HRC 30 (ZWB7-26A5S0730) 87105030310 | 8184160 Mfr. no. 87105030310 | €68.95 | Made-to-order item | View & order |
| Bosch service set for e.g. HRC 30 (ZWB7-26A5S0730) 87199283250 | 8185266 Mfr. no. 87199283250 | €32.95 | Made-to-order item | View & order |
Valves for the Bosch ZWR18-6 (5) all Bosch valves →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch safety relief valve 3 bar | 8181340 Mfr. no. 87174010120 | €37.95 | In stock | View & order |
| Bosch float air vent | 8185054 Mfr. no. 87185050140 | €37.95 | In stock | View & order |
| Bosch adjustment valve | 8184162 Mfr. no. 87133054300 | €31.95 | Made-to-order item | View & order |
| Bosch pressure relief valve | 8184163 Mfr. no. 87174010160 | €23.95 | Made-to-order item | View & order |
| Bosch non-return valve for e.g. Turbo Tower HRC 30 Solar 87185050230 | 8184245 Mfr. no. 87185050230 | €29.95 | Made-to-order item | View & order |
Pressure gauges for the Bosch ZWR18-6 (1) all Bosch pressure gauges →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch pressure gauge for e.g. HRC 30 (ZWB7-26A5S0730) 87172080790 | 8185172 Mfr. no. 87172080790 | €49.95 | In stock | View & order |
Electrical parts for the Bosch ZWR18-6 (5) all Bosch electrical parts →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch transformer for e.g. HRC 30 (ZWB7-26A5S0730) 87472013580 | 8184155 Mfr. no. 87472013580 | €71.95 | In stock | View & order |
| Bosch fuse T2.5A (10 pcs) | 8020119 Mfr. no. 19045213420 | €24.95 | In stock | View & order |
| Bosch fuse set | 8185067 Mfr. no. 87445030100 | €21.95 | Made-to-order item | View & order |
| Bosch tube fuse 10 pcs for e.g. HRC II 35 (ZWBR35) 19045227300 | 8185162 Mfr. no. 19045227300 | €25.95 | Made-to-order item | View & order |
| Bosch tube fuse 10 pcs for e.g. HRC II 35 (ZWBR35) 19045227400 | 8185163 Mfr. no. 19045227400 | €25.95 | Made-to-order item | View & order |
Tap parts for the Bosch ZWR18-6 (1) all Bosch tap parts →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch nozzle for e.g. HRC II 35 (ZWBR35) 87161064850 | 8189580 Mfr. no. 87161064850 | €24.95 | In stock | View & order |
Cables and wiring harnesses for the Bosch ZWR18-6 (4) all Bosch cables and wiring harnesses →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch display PCB cable HRC/S | 8184044 Mfr. no. 87144112690 | €32.95 | Made-to-order item | View & order |
| Bosch wiring harness for e.g. SZWN 24-6 87144020930 | 8187337 Mfr. no. 87144020930 | €101.95 | Made-to-order item | View & order |
| Bosch ignition cable | 8180067 Mfr. no. 87144019590 | €59.95 | Made-to-order item | View & order |
| Bosch plug ZWE..3MFA | 8185164 Mfr. no. 87144042260 | €43.95 | Made-to-order item | View & order |
Gaskets and seals for the Bosch ZWR18-6 (16) all Bosch gaskets and seals →
Pipes, tubes and hoses for the Bosch ZWR18-6 (7) all Bosch pipes, tubes and hoses →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch adapter for e.g. HRC 30 (ZWB7-26A5S0730) 87155044740 | 8184203 Mfr. no. 87155044740 | €46.95 | In stock | View & order |
| Bosch connection pipe | 8186516 Mfr. no. 87160105340 | €26.95 | Made-to-order item | View & order |
| Bosch connection piece for e.g. HRC 30 (ZWB7-26A5S0730) 87133054810 | 8184200 Mfr. no. 87133054810 | €47.95 | Made-to-order item | View & order |
| Bosch flow pipe for e.g. SZWN 24-6 87107258890 | 8187367 Mfr. no. 87107258890 | €106.95 | Made-to-order item | View & order |
| Bosch return pipe | 8187100 Mfr. no. 87107259590 | €68.95 | Made-to-order item | View & order |
| Bosch coupling 10 pcs | 8184082 Mfr. no. 87102060140 | €25.95 | Made-to-order item | View & order |
| Bosch connecting pipe hot for e.g. HRC 35 TOP (ZWBR8-35A5S0730) 87107255120 | 8189254 Mfr. no. 87107255120 | €85.95 | Made-to-order item | View & order |
Casing and panels for the Bosch ZWR18-6 (8) all Bosch casing and panels →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch closure for e.g. HRC 30 (ZWB7-26A5S0730) 87105062100 | 8189674 Mfr. no. 87105062100 | €26.95 | Made-to-order item | View & order |
| Bosch shield plate for e.g. VRC24 ZWN24-KE5 87113045320 | 8186789 Mfr. no. 87113045320 | €43.95 | Made-to-order item | View & order |
| Bosch burner protection for e.g. ZWR18-6 87154051220 | 8187565 Mfr. no. 87154051220 | €203.95 | Made-to-order item | View & order |
| Bosch upper part for e.g. HRC 30 (ZWB7-26A5S0730) 87170021050 | 8184159 Mfr. no. 87170021050 | €68.95 | Made-to-order item | View & order |
| Bosch cover for e.g. HRC 30 (ZWB7-26A5S0730) 87113047230 | 8185247 Mfr. no. 87113047230 | €45.95 | Made-to-order item | View & order |
| Bosch cover for e.g. ZWR24-6 87155066140 | 8187309 Mfr. no. 87155066140 | €97.95 | Made-to-order item | View & order |
| Bosch casing (white) | 8184228 Mfr. no. 87154013770 | €203.95 | Made-to-order item | View & order |
| Nefit sealing cap gas valve | 8029435 Mfr. no. 87167706200 | €21.95 | Made-to-order item | View & order |
Insulation for the Bosch ZWR18-6 (1) all Bosch insulation →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch insulation for e.g. SZWN 24-6 87123034190 | 8186589 Mfr. no. 87123034190 | €41.95 | Made-to-order item | View & order |
Fixing material for the Bosch ZWR18-6 (16) all Bosch fixing material →
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch screw 87134010620 | 8180163 Mfr. no. 87134010620 | €21.95 | Made-to-order item | View & order |
| Bosch screw 87134030290 | 8186207 Mfr. no. 87134030290 | €21.95 | Made-to-order item | View & order |
| Bosch screw m5x12 | 8186290 Mfr. no. 87434010360 | €21.95 | Made-to-order item | View & order |
| Bosch adjusting screw 87199050100 | 8186944 Mfr. no. 87199050100 | €57.95 | Made-to-order item | View & order |
| Nefit screw 29106194540, 10 pcs | 8030096 Mfr. no. 29106194540 | €42.95 | Made-to-order item | View & order |
| Nefit screw 87134010610, 10 pcs | 8030103 Mfr. no. 87134010610 | €21.95 | Made-to-order item | View & order |
| Nefit screw 29106124240, 10 pcs | 8030105 Mfr. no. 29106124240 | €21.95 | Made-to-order item | View & order |
| Nefit screw 29181404170, 10 pcs | 8030109 Mfr. no. 29181404170 | €21.95 | Made-to-order item | View & order |
| Nefit screw 87134030130, 10 pcs | 8030110 Mfr. no. 87134030130 | €21.95 | Made-to-order item | View & order |
| Bosch spacer 10 pcs | 8185248 Mfr. no. 87115031970 | €43.95 | Made-to-order item | View & order |
| Bosch clamping bracket for e.g. SZWN 24-6 87113010940 | 8186105 Mfr. no. 87113010940 | €8.95 | Made-to-order item | View & order |
| Bosch clamping spring | 8186484 Mfr. no. 87112020020 | €25.95 | Made-to-order item | View & order |
| Nefit locking spring (10x) for e.g. HRC 30 (ZWB7-26A5S0730) 87112000150 | 8021235 Mfr. no. 87112000150 | €23.95 | Made-to-order item | View & order |
| Nefit retaining spring (10x) for e.g. HRC 30 (ZWB7-26A5S0730) 87112000160 | 8021237 Mfr. no. 87112000160 | €25.95 | Made-to-order item | View & order |
| Nefit clamp (10 pcs) for e.g. BaseLine HRC24 CW4 87113046950 | 8020827 Mfr. no. 87113046950 | €43.95 | Made-to-order item | View & order |
| Nefit clamping spring 10 mm (10 pcs) | 8020808 Mfr. no. 87167711670 | €7.95 | Made-to-order item | View & order |
Other parts for the Bosch ZWR18-6 (11)
| Part | Item no. / mfr. no. | Price | Stock | |
|---|---|---|---|---|
| Bosch water section Euro / Cerastar | 8181090 Mfr. no. 87170021100 | €163.95 | In stock | View & order |
| Bosch contact paste 30 grams | 8184020 Mfr. no. 87199186580 | €59.95 | In stock | View & order |
| Bosch fixing clamps | 8186672 Mfr. no. 87113000400 | €32.95 | Made-to-order item | View & order |
| Bosch threaded bush 10 pcs | 8184084 Mfr. no. 87134060690 | €43.95 | Made-to-order item | View & order |
| Bosch adjusting key Sit | 8184005 Mfr. no. 87199050290 | €85.95 | Made-to-order item | View & order |
| Bosch sight glass for e.g. Turbo Tower HRC 30 Solar 87155061660 | 8186211 Mfr. no. 87155061660 | €11.95 | Made-to-order item | View & order |
| Bosch click closure HRC2 | 8180898 Mfr. no. 87132040170 | €25.95 | Made-to-order item | View & order |
| Bosch air vent pipe for e.g. SZWN 24-6 87107259060 | 8187010 Mfr. no. 87107259060 | €58.95 | Made-to-order item | View & order |
| Bosch collector tray set for e.g. SZWN 24-6 87180039010 | 8187180 Mfr. no. 87180039010 | €70.95 | Made-to-order item | View & order |
| Bosch water strainer | 8184161 Mfr. no. 87005070560 | €21.95 | Made-to-order item | View & order |
| Nefit gas outlet | 8030323 Mfr. no. 87055040370 | €21.95 | Made-to-order item | View & order |
Fault code on your Bosch ZWR18-6? 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. All codes explained: Bosch fault codes.
| 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 boilers
- Bosch Compact HRC 24 89
- Bosch Compact HRC 28 89
- Bosch Compact HRC 30 90
- Bosch Condens 3000W (ZWB28-3C) 129
- Bosch Condens 3000W (ZWB29-3C) 131
- Bosch Condens 6000W (30HRC SHU) 132
- Bosch Condens 6000W (30HRCII HRVS75) 131
- Bosch Condens 6000W SP400 38
- Bosch Condens 7000 FP 350 62
- Bosch Condens 7000F (GC7000F 100 23 (R)) 102
- Bosch Condens 7000F (GC7000F 150 23 (R)) 119
- Bosch Condens 7000F (GC7000F 200 23 (R)) 129
Frequently asked questions
Which parts are available for the Bosch ZWR18-6?
The catalogue lists 97 original parts for the Bosch ZWR18-6, including sensors, temperature sensors and NTC sensors, flow sensors and flow switches, pumps. All parts are listed above, grouped by type, with part number and price.
How much does a sensor for the Bosch ZWR18-6 cost?
The sensors for this model cost between €22.22 and €54.89 incl. VAT. Check the table "Sensors" above for the right part number.
Are the parts for the Bosch ZWR18-6 in stock?
19 of the 97 parts are in stock; shipping to EU countries from €17.95 (€24.95 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 ZWR18-6?
Search for the part by part number or use the parts list of the Bosch ZWR18-6.
Are these original Bosch parts?
Yes. All 97 parts in this list are original manufacturer parts for the Bosch ZWR18-6, supplied through the official technical wholesale channel and with the correct part number.
How much do parts for the Bosch ZWR18-6 cost?
Parts for the Bosch ZWR18-6 range from €3.60 to €572.38 incl. VAT. The exact price of each part is shown in the tables above.
Can I return a part?
You have a 14-day right of withdrawal. Return unused parts, in their original packaging where possible; details are in our returns conditions.