Multiquip 21609 Seat Cushion with OPS Switch - OEM Replacement Part

This operator presence switch (OPS) seat cushion ensures safe operation of ride-on power trowels by cutting power when the operator leaves the seat. The integrated pressure-activated switch is a critical safety component that prevents unauthorized operation and stops the machine if the operator is unseated during use. This cushion is engineered specifically for Multiquip ride-on trowel models and integrates directly into the machine's wiring system to provide reliable operator detection.

The OPS switch seat cushion is essential for maintaining OSHA compliance on job sites and protects against runaway equipment. When seated pressure is removed, the switch interrupts the electrical circuit, immediately disabling trowel operation. This part should be inspected regularly for proper switch function and replaced if the cushion shows compression damage, switch failure, or inconsistent operation. Proper installation requires connecting to the machine's wiring harness as shown in the HTX-44K/Y wiring diagram.

Compatible with the following Multiquip ride-on trowel models:

• HTX-44K4
• STX55J6

Genuine Multiquip OEM part, sold by an authorized dealer.