This part fits
Worcester 280 NG FSN COMBI
Worcester 280 LPG FSP COMBI
Worcester 350 NG FSN COMBI (FUR)
Worcester 350 LPG FSP COMBI (FUR)
Worcester CDI 35 NG
Worcester CDI 35 LPG
Worcester HIFLO 400 BSN NG
Worcester HIFLO 400 BSP LPG
Worcester HIFLO 400 FSN NG
Worcester HIFLO 400 FSP LPG
Worcester HIFLO 400 OSN NG
Worcester HIFLO 400 OSP LPG