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Boiler Spares

Need a replacement part for a boiler? You’ve come to the right place – at Toolstation, we stock hundreds of boiler spares to help you...

Need a replacement part for a boiler? You’ve come to the right place – at Toolstation, we stock hundreds of boiler spares to help you carry out any service or repair as quickly and efficiently as possible.

We have official replacement parts for an extensive range of boiler brands. Find spare parts for Baxi, Ideal, Danfoss, Worcester Bosch, Vaillant and many more.

Boiler Parts 

Our boiler parts are all listed with the manufacturer’s part ID number, so it couldn’t be easier to find any of the heating spare parts you’re looking for. From valves, switches and sensors to heat exchangers, PCBs and automatic air vents, you’ll always be sure of a Job Done Right when you visit Toolstation.
Related Categories
Ideal Boilers Ideal Boilers / Ideal 175552 Return Group Kit

Product code: AD372

Ideal 175552 Return Group Kit

£144.49

ex. VAT £120.41 Each

Worcester Bosch Worcester Bosch / Worcester 87161066860 Heat Exchanger 10 Plate

Product code: 60886

Worcester 87161066860 Heat Exchanger 10 Plate

£117.99

ex. VAT £98.32 Each

Baxi Baxi / Baxi 7786341 Combustion Ctrl Unit 12/13 Ht

Product code: AD244

Baxi 7786341 Combustion Ctrl Unit 12/13 Ht

£344.99

ex. VAT £287.49 Each

Johnson & Starley Johnson & Starley / Johnson & Starley 1000-0523395 Cvbc Main Ignition & Control

Product code: AD070

Johnson & Starley 1000-0523395 Cvbc Main Ignition & Control

£277.49

ex. VAT £231.24 Each

Baxi Baxi / Baxi 7686321 Kit Connections Pack - Combi

Product code: AD167

Baxi 7686321 Kit Connections Pack - Combi

£141.99

ex. VAT £118.32 Each

Glowworm Glowworm / Glowworm 2000800089 Mechanical Timer

Product code: AC966

Glowworm 2000800089 Mechanical Timer

£259.99

ex. VAT £216.66 Each

Baxi Baxi / Baxi 7683965 Plate Heat Ex Kit (12 Plates) 600 800 Eco Compact

Product code: AD168

Baxi 7683965 Plate Heat Ex Kit (12 Plates) 600 800 Eco Compact

£88.99

ex. VAT £74.16 Each

Baxi Baxi / Baxi 7784288 Combustion Ctrl Unit 15/16 Ht

Product code: AD111

Baxi 7784288 Combustion Ctrl Unit 15/16 Ht

£352.99

ex. VAT £294.16 Each

Baxi Baxi / Baxi 7683968 Kit Gas Valve 22V Assembly

Product code: AD104

Baxi 7683968 Kit Gas Valve 22V Assembly

£130.99

ex. VAT £109.16 Each

Vokera Vokera / Vokera 105903 Burner Head Silicone Gasket

Product code: AD242

Vokera 105903 Burner Head Silicone Gasket

£66.00

ex. VAT £55.00 Each

Viessmann Viessmann / Viessmann 7828718 Ignition / Ionisation Electrode

Product code: 96221

Viessmann 7828718 Ignition / Ionisation Electrode

£46.59

ex. VAT £38.82 Each

Vaillant Vaillant / Vaillant 0020216847 Fan

Product code: AD089

Vaillant 0020216847 Fan

£188.49

ex. VAT £157.07 Each

Viessmann Viessmann / Viessmann 7828646 Expansion Vessel CRI8

Product code: 10733

Viessmann 7828646 Expansion Vessel CRI8

£138.99

ex. VAT £115.82 Each

Vaillant Vaillant / Vaillant 0020143440 Electrode, Maintenance Kit

Product code: AC937

Vaillant 0020143440 Electrode, Maintenance Kit

£106.99

ex. VAT £89.16 Each

Glowworm Glowworm / Glowworm 2000802731 Printed Circuit Board Replacement Kit Xi Range

Product code: 94147

Glowworm 2000802731 Printed Circuit Board Replacement Kit Xi Range

£275.99

ex. VAT £229.99 Each

Main Main / Main 7679746 Pcb Combi 25 Eco

Product code: AD021

Main 7679746 Pcb Combi 25 Eco

£202.99

ex. VAT £169.16 Each

Vaillant Vaillant / Vaillant 0020148383 Gas Section With Regulator

Product code: AD085

Vaillant 0020148383 Gas Section With Regulator

£254.00

ex. VAT £211.67 Each

EOGB EOGB / EOGB F08-0890-A-14M-S-14F Flexible 890MM Biogreen New Mectron

Product code: AA494

EOGB F08-0890-A-14M-S-14F Flexible 890MM Biogreen New Mectron

£19.09

ex. VAT £15.91 1

Baxi Baxi / Baxi 7224343 3 Way Diverter Valve Assembly

Product code: AD238

Baxi 7224343 3 Way Diverter Valve Assembly

£248.49

ex. VAT £207.07 Each

Baxi Baxi / Baxi 7661749 Expansion Vessel - 7L

Product code: AD247

Baxi 7661749 Expansion Vessel - 7L

£111.99

ex. VAT £93.32 Each

Worcester Bosch Worcester Bosch / Worcester 87161068470 Diverter Valve Motor

Product code: 21651

Worcester 87161068470 Diverter Valve Motor

£72.99

ex. VAT £60.82 Each

Worcester Bosch Worcester Bosch / Worcester 873790949A0 Control Box

Product code: AD361

Worcester 873790949A0 Control Box

£572.99

ex. VAT £477.49 Each

Ideal Boilers Ideal Boilers / Ideal 176001 Expansion Vessel Kit

Product code: AD363

Ideal 176001 Expansion Vessel Kit

£130.99

ex. VAT £109.16 Each

Baxi Baxi / Baxi 7783329 Kit Easy-Fill Perm Link 2

Product code: AD011

Baxi 7783329 Kit Easy-Fill Perm Link 2

£80.49

ex. VAT £67.07 Each

Alpha Alpha / Alpha Boilers 3.013211 Direct Heat Flow Switch (CB24/28/CD24C)

Product code: 13527

Alpha Boilers 3.013211 Direct Heat Flow Switch (CB24/28/CD24C)

£46.59

ex. VAT £38.82 Each

Ideal Boilers Ideal Boilers / Ideal Domestic 175569 Fan Kit

Product code: 42369

Ideal Domestic 175569 Fan Kit

£253.49

ex. VAT £211.24 Each

Worcester Bosch Worcester Bosch / Worcester Bosch 8716122434 Expansion Vessel 7L

Product code: AA492

Worcester Bosch 8716122434 Expansion Vessel 7L

£119.99

ex. VAT £99.99 1

Vaillant Vaillant / Vaillant 0020059717 Sensor

Product code: 82999

Vaillant 0020059717 Sensor

£30.49

ex. VAT £25.41 Each

Vaillant Vaillant / Vaillant 0020141342 Gas Pipe (Top)

Product code: AD261

Vaillant 0020141342 Gas Pipe (Top)

£161.99

ex. VAT £134.99 Each

Vaillant Vaillant / Vaillant 0020195460 Heat Exchanger

Product code: AD178

Vaillant 0020195460 Heat Exchanger

£502.99

ex. VAT £419.16 Each

Worcester Bosch Worcester Bosch / Worcester 87161055450 Expansion Vessel

Product code: 74039

Worcester 87161055450 Expansion Vessel

£97.99

ex. VAT £81.66 Each

Worcester Bosch Worcester Bosch / Worcester 87161049200 Diverter Actuator

Product code: AD342

Worcester 87161049200 Diverter Actuator

£156.99

ex. VAT £130.82 Each

Baxi Baxi / Baxi 5111074 Kit 1M He Extension 60/100

Product code: AD190

Baxi 5111074 Kit 1M He Extension 60/100

£97.99

ex. VAT £81.66 Each

Worcester Bosch Worcester Bosch / Worcester 8716119317 Heat Exchanger Basic Block Fs/Hf

Product code: AD301

Worcester 8716119317 Heat Exchanger Basic Block Fs/Hf

£758.99

ex. VAT £632.49 Each

Danfoss Danfoss / Danfoss Burner Controls C05043J EBI Service Kit

Product code: 24313

Danfoss Burner Controls C05043J EBI Service Kit

£40.99

ex. VAT £34.16 Each

Ideal Boilers Ideal Boilers / Ideal 176354 Burner 60/80Kw Kit

Product code: AD355

Ideal 176354 Burner 60/80Kw Kit

£344.99

ex. VAT £287.49 Each

Vokera Vokera / Vokera 20039923 Exchanger Assembly Rep 20025765

Product code: AD035

Vokera 20039923 Exchanger Assembly Rep 20025765

£406.99

ex. VAT £339.16 Each

Ideal Boilers Ideal Boilers / Ideal Domestic 175418 Plate Heat Exchanger Kit 30Kw

Product code: 22051

Ideal Domestic 175418 Plate Heat Exchanger Kit 30Kw

£94.99

ex. VAT £79.16 Each

Baxi Baxi / Baxi 236921 Kit - Flue Terminal Condensing

Product code: AD150

Baxi 236921 Kit - Flue Terminal Condensing

£140.99

ex. VAT £117.49 Each

Worcester Bosch Worcester Bosch / Worcester 87180069070 Firestop Plate C/W Screws

Product code: 14151

Worcester 87180069070 Firestop Plate C/W Screws

£28.99

ex. VAT £24.16 Each

Ariston Ariston / Ariston 60000629 Return Group

Product code: AD200

Ariston 60000629 Return Group

£92.49

ex. VAT £77.07 Each

Baxi Baxi / Baxi 5112380 Printed Circuit Board

Product code: 83952

Baxi 5112380 Printed Circuit Board

£199.49

ex. VAT £166.24 Each

Ideal Boilers Ideal Boilers / Ideal 170913 Gas Valve Kit Icos/Classic M

Product code: AD276

Ideal 170913 Gas Valve Kit Icos/Classic M

£204.49

ex. VAT £170.41 Each

Baxi Baxi / Baxi 7678800 Service Pcb Combi System L4

Product code: AD195

Baxi 7678800 Service Pcb Combi System L4

£180.99

ex. VAT £150.82 Each

Potterton Potterton / Potterton 402550 Cvi Gas Valve

Product code: AD302

Potterton 402550 Cvi Gas Valve

£132.99

ex. VAT £110.82 Each

Glowworm Glowworm / Glowworm 0020097207 Flow Switch

Product code: 61195

Glowworm 0020097207 Flow Switch

£50.99

ex. VAT £42.49 Each

Worcester Bosch Worcester Bosch / Worcester 87161209930 Fan Assembly

Product code: AD386

Worcester 87161209930 Fan Assembly

£239.99

ex. VAT £199.99 Each

Baxi Baxi / Baxi 7225723 Heat Exchanger Dhw (16 Plates)

Product code: 98416

Baxi 7225723 Heat Exchanger Dhw (16 Plates)

£111.49

ex. VAT £92.91 Each