Multiquip 800742 Drive Plate - OEM Replacement Part for Ride-On Rollers

The drive plate is a critical power transmission component in the hydrostatic drive system of vibratory ride-on rollers, connecting the engine's power output to the hydrostatic pump that controls forward and reverse drum movement. This component endures constant rotational stress and torque loads during operation, making it essential for maintaining proper drum drive function in asphalt compaction and soil preparation applications.

In the AR14H vibratory roller's hydrostatic system, the drive plate interfaces with the hydraulic pump that supplies high-pressure oil to the front and rear drum drive motors through the manifold control valve block. When the forward/reverse travel lever is actuated, the system direction changes based on which port receives high-pressure flow—proper drive plate function is essential for reliable bidirectional operation. Signs of drive plate wear or failure include loss of power transmission, unusual vibration during travel, or inability to engage forward or reverse movement properly.

Compatible with the following Multiquip models:

• AR14H Vibratory Ride-On Roller

Genuine Multiquip OEM part, sold by an authorized dealer.