Hengst (legally Hengst SE) is a German filtration specialist founded in 1958 in Münster by engineer Walter Hengst, and remains an independent, family-owned company now in its third generation. It makes oil, fuel, air and cabin-air filters as well as crankcase-ventilation and fluid-management systems for both OEMs and the aftermarket, marketed under the Hengst Filter brand. (المصدر)