These new Leybold 1st stage stators are for the Leybold D8B Trivac rotary vane dual stage mechanical vacuum pumps. This the stator only. Other vacuum pump parts and accessories sold separately on this website. We also rebuild or repair your leaking or malfunctioning D8B vacuum pump. Ideal Vacuum Part Number 23192015. For parts break down for the Trivac D8B pump see .pdf Downloads to the left.