Throttle body
Manual and DBW throttle housings and accessories.
Products
Throttle body, E-throttle
Leaking throttle body bearings
Ball bearings have two types of seals - metal and rubber. Metal seals protect the bearings from dust and particles but are not completely tight. They are identified by the suffix "2Z" in the designation. Rubber seals, on the other hand, are sealed and prevent air and liquids from entering or leaving the bearings.