Here is the throttle pot assembly for the Bobcat 3, Bobcat X3, Bobcat 4 & Bobcat X4 mobility scooters. This OEM Drive Medical part comes complete with the wiring harness, "wig-wag" throttle lever, and four mounting screws.
The throttle pot is also known as the engager or throttle switch. Faulty throttle potentiometers can lead to "jerky" motion while throttling, or no motion at all.
Drive Medical: S12-069-00300 (replaces BC31009N)