Universal Motor Pump Pump has adjustable pressure relief valve set at 400psi. Builit in bypass so fluid circulates so that pump will not stall. Motor has thermal overload protection. Includes all necessary fittings for a 12 volt single cylinder system. Kit contains Biodegradable oil and funnel. Heavy duty solenoid vales that lock cylinder in place. 18" wire harness with color coding instructions for other brands. Installation Instructions Quick Guide (pdf)