Piston (Green)
Type your appliance model: we compare it with the 2 appliances in our sources.
Parts for the same appliances
- 0020133834VaillantO-Ring (PK10)MAG 275/9 W (1992-1994 ), MAG 275/9 XW (1994-1997 ), MAG 350/9 W (1992-1994 ), MAG 350/9 XW (1994-1997 ), MAG 440/9 W (1992-1994 ), MAG 440/
- 0020206053VaillantHeat Exchanger - Mag 14/Mag 350MAG 14-0/0 XI (2004-2010 ), MAG 14-0/0 XZ (2004-2010 ), MAG 350/9 W (1992-1994 ), MAG 350/9 XW (1994-1997 )
- 012946VaillantWater Quantity Regulator, CPLMAG 275/9 W (1992-1994 ), MAG 275/9 XW (1994-1997 ), MAG 350/9 W (1992-1994 ), MAG 350/9 XW (1994-1997 ), MAG 440/9 W (1992-1994 ), MAG 440/
- 170255VaillantMagnetoMAG 275/9 W (1992-1994 ), MAG 275/9 XW (1994-1997 ), MAG 350/9 W (1992-1994 ), MAG 350/9 XW (1994-1997 ), MAG 440/9 W (1992-1994 ), MAG 440/
- 981145VaillantPackingring (Set of 10)MAG 275/9 W (1992-1994 ), MAG 275/9 XW (1994-1997 ), MAG 350/9 W (1992-1994 ), MAG 350/9 XW (1994-1997 ), MAG 440/9 W (1992-1994 ), MAG 440/
- 981152VaillantPackingring (Set of 10)GEOTHERM VWS 36/4.1 230V, MAG 275/9 W (1992-1994 ), MAG 350/9 W (1992-1994 ), MAG 440/9 W (1992-1994 ), THERMOcompact 620 E(2000-2001), Vail
- 234014BAXBaxiInjector B19Baxi Bermuda Inset 50/3
OEM Replacement Part & Compatibility Table
Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.
Compatible appliances
No appliance matches the filter.
Always check the model and serial number on the data plate before ordering.
Frequently asked questions
Which appliances does 203031 fit?
The sources we checked list 203031 (Piston (Green), Vaillant) for: MAG 350/9 W (1992-1994 ), MAG 350/9 XW (1994-1997 ). Always check the model and serial number on the data plate before ordering.
Does 203031 have equivalent or superseded part numbers?
The sources we checked list no equivalents for 203031. Ask a Vaillant stockist to confirm.
What should I check before fitting 203031?
Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.