Home / Potentiometers & Throttle Motors / ZF Potentiometer 635. ZF Potentiometer 635. ZF Potentiometer 635. Enquire about this product SKU: 1617 Category: Potentiometers & Throttle Motors Tags: Potentiometer, ZF Product ID: 1617 Related products Voith Load Sensor 56.1678.12/58.2675.21 ZF 6 Button Gear Selector Vertical Multi-Plug 6006.340.024