Multiquip 12940077012 55H 4TNV84T-DSA Engine Assembly - OEM Replacement Part

This complete engine assembly powers the STX-Series ride-on trowel, delivering reliable performance for concrete finishing operations. The 4TNV84T-DSA is a four-cylinder diesel engine specifically engineered for the demanding hydraulic and electrical systems of commercial concrete trowels. It provides the necessary power to drive both the rotor blades and hydraulic functions while maintaining consistent RPM under load.

The engine works in conjunction with the trowel's hydraulic system, which includes a 10-micron absolute synthetic media suction filter, and supplies +12V DC power through the battery to operate critical controls including the ignition switch, six halogen work lights, operator gauges, and blade pitch control systems. Proper engine function is essential for maintaining hydraulic pressure at the pitch block and ensuring responsive steering control during forward, reverse, left, and right directional movements.

Compatible with the following Multiquip model:

• STX55J6

Genuine Multiquip OEM part, sold by an authorized dealer.