Trade Boiler Spares – Quality Parts at Competitive Prices
If you’re looking for a reliable trade boiler spares, you’ve come to the right place. At Trade Only, we supply high-quality boiler parts from trusted brands including Vaillant, Worcester, and Baxi, making your repair work a bit simpler. Whether you’re a professional heating engineer or sourcing a replacement part, you can find exactly what you need right here.
Showing 1–50 of 1007 results
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0020059717R – Water Pressure Sensor
£8.34 (£10.01 inc VAT) -

1 Amp Fuse
£0.40 (£0.48 inc VAT) -

1 Inch Fibre Washers (Minimum order quantity of 100)
£0.11 (£0.13 inc VAT) -

1/2 Inch – Male + Female – 6 Bar
£6.90 (£8.28 inc VAT) -

1/2 Inch Fibre Washers (Minimum order quantity of 100)
£0.06 (£0.07 inc VAT) -

1/4 Inch Fibre Washers (Minimum order quantity of 100)
£0.06 (£0.07 inc VAT) -

178983R – Pump
£104.50 (£125.40 inc VAT) -

2 Amp Fuse
£0.40 (£0.48 inc VAT) -

3/4 Inch Fibre Washers (Minimum order quantity of 100)
£0.08 (£0.10 inc VAT) -

3/8 Inch Fibre Washers (Minimum order quantity of 100)
£0.06 (£0.07 inc VAT) -

Actuator 240v
£17.55 (£21.06 inc VAT) -

Adjustable APS. 6 mbar max.
£27.28 (£32.74 inc VAT) -

Alpha 1.010771 – Auto Air Vent – CB, CD
£14.39 (£17.27 inc VAT) -

Alpha 1.011126 – PRV – CB, CD
£15.17 (£18.20 inc VAT) -

Alpha 1.012849 – Air Pressure Switch
£33.61 (£40.33 inc VAT) -

Alpha 1.015957 – Heat Exchanger – CB24, CB24X
£91.73 (£110.08 inc VAT) -

Alpha 1.016779 – Ignition Electrode
£3.73 (£4.48 inc VAT) -

Alpha 1.016884 – Air Pressure Switch
£37.07 (£44.48 inc VAT) -

Alpha 1.017998 – Fan – CB24(X),CB28 (X)
£75.94 (£91.13 inc VAT) -

Alpha 1.0180 – PRV 3 Bar
£16.01 (£19.21 inc VAT) -

Alpha 1.018193 – Discharge Pipe
£31.44 (£37.73 inc VAT) -

Alpha 1.018745 – Fan Assembly
£69.22 (£83.06 inc VAT) -

Alpha 1.019293 – Flame Sensing Electrode
£17.49 (£20.99 inc VAT) -

Alpha 1.020429 – Flow Limiter
£2.40 (£2.88 inc VAT) -

Alpha 1.020831 – Flow Switch
£28.88 (£34.66 inc VAT) -

Alpha 1.022102 – Auto Air Vent
£14.10 (£16.92 inc VAT) -

Alpha 1.022220 – Heat Exchanger CD25
£69.28 (£83.14 inc VAT) -

Alpha 1.022221 – Heat Exchanger CD28
£75.24 (£90.29 inc VAT) -

Alpha 1.022222 – Heat Exchanger
£96.89 (£116.27 inc VAT) -

Alpha 1.022592 – Fan – 240
£64.53 (£77.44 inc VAT) -

Alpha 1.023560 – Expansion Vessel 8ltr.
£66.77 (£80.12 inc VAT) -

Alpha 1.023565 – PRV – CD25C, 28C, 35C
£16.68 (£20.02 inc VAT) -

Alpha 1.023673 – Gas Valve (Dungs)
£71.54 (£85.85 inc VAT) -

Alpha 1.024296 – Flue Temperature Sensor
£13.71 (£16.45 inc VAT) -

Alpha 1.027110 – Auto Air Vent
£13.71 (£16.45 inc VAT) -

Alpha 1.027178 – Fan Assembly
£94.91 (£113.89 inc VAT) -

Alpha 1.027277 – Water Pressure Switch
£14.19 (£17.03 inc VAT) -

Alpha 1.028548 – Housing, Outlet Manifold
£51.52 (£61.82 inc VAT) -

Alpha 1.028561 – Safety Valve
£17.12 (£20.54 inc VAT) -

Alpha 1.028570 – Flow Switch
£26.17 (£31.40 inc VAT) -

Alpha 1.028572 – 3 Way Valve Motor
£13.75 (£16.50 inc VAT) -

Alpha 1.028643 – PRV 3 Bar
£18.80 (£22.56 inc VAT) -

Alpha 1.029719 – Fan – CD (Replaces 1.021206)
£126.01 (£151.21 inc VAT) -

Alpha 1.030996 – Expansion Vessel 8ltr
£54.26 (£65.11 inc VAT) -

Alpha 1.031823 – Gas Valve
£85.24 (£102.29 inc VAT) -

Alpha 1.032007 – Flame Sensing Electrode
£18.66 (£22.39 inc VAT) -

Alpha 1.033784 – Thermister
£11.54 (£13.85 inc VAT) -

Alpha 1.033918 – Stepper Motor
£37.57 (£45.08 inc VAT) -

Alpha 1.034600 – Manometer
£19.29 (£23.15 inc VAT) -

Alpha 1.035365 – DHW Flow Switch
£26.17 (£31.40 inc VAT)