ProX Crankshaft Oil seals are made at the O.E. manufacturers in Japan. The Crankshaft Oil seals are available for many different applications like Motorcycle, ATV and Personal Watercraft.; ProX Racing Parts headquarters are located near Amsterdam, The Netherlands. Founded in 1975, ProX Racing Parts is now distributed in a significant number of countries worldwide. Domestic as well as international dealers and distributors are being served from our facilities in Nieuw Vennep Netherlands, Mentor Ohio, and Woodstock Ontario Canada.