Skip to content

Now Available - Navien Boiler Spares

Search

Search Log in Basket

Menu

Service Kits
Vessel Kits
Boiler Spares
Cylinder Spares
Electric
Fire & Cooker
Fittings
Water Treatment
Consumables

Home
Boiler Spares
Vaillant Boiler Spares

Vaillant Boiler Spares

View as List Grid

FiltersFilter

Applied Filters

Clear all

Product type

Control Knob (1)
Diverter Valve (2)
Electrode (1)
Expansion Vessel (1)
Gasket (2)
PCB (1)
PRV (1)
Sensor (2)

Clear

Vaillant Gasket Kit 0020038679

£17.94

£14.95 EX. VAT

In stock

View details
Vaillant Ignition / Monitoring Electrode 090709

£25.50

£21.25 EX. VAT

In stock

View details
Vaillant Burner Gasket 981103

£9.60

£8.00 EX. VAT

In stock

View details
Vaillant Grey Knobs (Pack of 3) 0020074963

£9.90

£8.25 EX. VAT

In stock

View details
Vaillant Pressure Relief Valve 3 Bar 178985

£14.40

£12.00 EX. VAT

In stock

View details
Vaillant PCB 0020132764

£280.84

£234.03 EX. VAT

In stock

View details
Vaillant Flow Sensor 178988

£33.53

£27.94 EX. VAT

In stock

View details
Vaillant Valve 3 Way 0020020015

£104.99

£87.49 EX. VAT

In stock

View details
Vaillant Diverter Valve Brass With Adaptor 0020132682

£106.22

£88.52 EX. VAT

In stock

View details
Vaillant Expansion Vessel 10 Litre 181051

£51.60

£43.00 EX. VAT

In stock

View details
Vaillant Sensor (Water Pressure) 0020059717

£23.03

£19.19 EX. VAT

In stock

View details

Your cart

Your cart is empty

Subtotal:£0.00 GBP

Loading...

Trade Supplies

15mm Brass Gate Valve WRAS

£3.50 ~~£4.92~~

£2.92 EX. VAT
3 Core Heat Resistant Cable 0.75mm (sold per metre)

£0.90 ~~£1.49~~

£0.75 EX. VAT
Caterflex Gas Hose 1/2" x 1.5M Long Yellow

£29.64

£24.70 EX. VAT
PrimaTEC PT10 Inhibitor 500ml

£9.76

£8.13 EX. VAT
Esi Electronic Dual Cylinder Thermostat ESCTDEB

£25.86

£21.55 EX. VAT
Straight Boiler Filling Loop

£9.36

£7.80 EX. VAT
15mm Bottle Air Vent

£6.96

£5.80 EX. VAT
Gas Restrictor Elbow Kit Chrome

£6.72

£5.60 EX. VAT
Adjustable Earth Clamp

£0.40 ~~£0.90~~

£0.33 EX. VAT

Order Updates

Tracking Updates
Leading Prices

Genuine Parts
Fast Delivery

From £3.79
Support

Expert Help
Returns

Simple Returns

About GasPart

GasPart is the leading supplier of bespoke boiler service kits officially supplying genuine replacement parts for all leading domestic and commercial boiler manufacturers.

Phone: 0345 222 1611

Facebook
Instagram
Twitter

Account

My Account
Ordering
Delivery
Returns
FAQ

Information

About us
News and Information
Gas Safe
Privacy Policy
Terms and Conditions

Browse

Service Kits
Vessel Kits
Boiler Spares
Cylinder Spares
Electric
Fire & Cooker
Fittings
Water Treatment
Consumables

Payment methods accepted

© 2025 GasPart.co.uk.

Choose options

Item added to your cart.

View cart