This Parker Chelsea 379686-1 solenoid valve is an OEM-grade 12 VDC power-take-off (PTO) control valve designed for heavy-duty mobile hydraulic installations. It serves as the electric signal-activated valve that engages or disengages the PTO drive, making it a critical component in the proper functioning of auxiliary systems such as dump beds, cranes, hydraulic pumps and other vocational equipment. Built to Parker Chelsea's industrial specifications, the unit offers robust construction, rapid actuation and durable operation in harsh working conditions. With direct interchange to Chelsea part number 379686-1 (also known as 3796861) and known cross-references to Chelsea 379193-1 / Muncie 35M12340, this solenoid is straightforward to source for spec-compliance or replacement. Designed for use in 12 V systems, the valve fits typical PTO shift control setups when properly mounted and wired. Whether you're servicing a municipal truck fleet, waste vehicle or construction chassis, this genuine Parker Chelsea part helps restore OEM performance and reliability.