3309-O409099000
Automatic Transmission Shifter Shaft Position Switch
Mack

This switch is integral to the proper functioning of the automatic transmission shifter system, detecting the gear position for accurate transmission control. It ensures that the vehicle’s transmission responds correctly to driver inputs, preventing mis-shifts or unintended engagement. Its durable construction withstands vibrations and mechanical stresses typical of heavy-duty operation. Proper installation and calibration of this switch are crucial for smooth shifting and overall transmission health. It also plays a role in safety features, such as preventing engine start in gear. Source One Parts Center offers this switch as a vital component for maintaining reliable transmission operation and vehicle safety.