Hydraulic motors, pumps

Sonic series of pumps and motors is designed for lawn and garden vehicles, agricultural machines, and other mobile and marine equipment. STP-1000 series axial-piston pumps (shown) are offered in 10-cc displacements, with operating pressures of 1000 psi and input speeds ranging from 1800-3600 rpm. STP motors are available with displacements ranging from 160 to 290 cc, with torque ratings from 180-600 lb-ft under operating pressures of 1500 to 3000 psi.

Sonic Tractor Parts Inc.,
(305) 594-0777, www.stpusa.net