Multiquip 22789 Fitting Service Port -4MJ Black Head - OEM Replacement Part

This service port fitting provides a critical hydraulic pressure testing and diagnostic access point on Multiquip ride-on power trowels. The -4MJ black head configuration allows technicians to safely connect gauges and diagnostic equipment to monitor hydraulic system performance without shutting down the system. Essential for troubleshooting hydraulic issues, monitoring Parker Duraclean ISO 46 hydraulic oil pressure, and performing preventive maintenance on the trowel's hydraulic drive system that powers the rotor assembly.

Designed specifically for Multiquip's diesel-powered ride-on trowels equipped with Yanmar 4TNV84T turbocharged engines, this fitting integrates into the hydraulic system that drives rotors up to 160 rpm. The service port enables real-time pressure monitoring during operation, helping diagnose issues before they lead to rotor performance problems or blade tip speed irregularities. Critical for maintaining proper hydraulic function on trowels operating at 2,165 lb. with 92-inch path widths.

Compatible with the following Multiquip models:

• HTXD6i
• STXD6i

Genuine Multiquip OEM part, sold by an authorized dealer.