Multiquip 518769 Contact Block Switch Parking Brake - OEM Replacement Part

The contact block for the parking brake switch is a critical electrical component that completes the circuit between the parking brake solenoid and the hydraulic drive system on Multiquip power buggies. This switch contact block ensures proper electrical continuity in the parking brake safety circuit, preventing drive motor engagement when the parking brake is applied. Located in the electrical control system between the combination switch and the parking brake solenoid, this component interfaces with the hydraulic tandem drive pump system that controls both left-side and right-side hydraulic drive motors.

When this contact block fails, common symptoms include inability to release the parking brake, intermittent brake engagement during operation, or complete loss of drive function due to safety interlocks. The contact block works in conjunction with the control box wiring harness and must maintain proper continuity through the BLK/YEL ground circuit and +12VDC power supply. Regular inspection of this electrical contact is essential during routine maintenance to prevent unexpected downtime in the field.

Compatible with the following Multiquip models:

• WTB-16
• WTB-16PD

Genuine Multiquip OEM part, sold by an authorized dealer.