Some parts are cheaper to buy individually and some parts are cheaper to buy as a kit — this is one of the ones where the kit wins. Doing one component and leaving the neighboring ones original is a strategy that has you back in there again in six months.
This is the genuine Nilfisk Advance OEM KIT ACC WHT SIL FDA D50X3M, part number 4072200615, brand new in the box. Everything in one box, everything matched, everything guaranteed to work together the way the factory intended.
Not sure this is the right kit for your machine? Send us the model and serial and we'll match it up.