This is a supplemental safety device not to be used in place of the originalequipment parking brake. When used with existing vehicle parking brake, thislock uses a portion of the vehicle’s hydraulic service brake system to provideadditional brake holding action. For hydraulic oil systems – 12 volts DC -includes 3/16 and 1/4 inch fittings, toggle switch, and dash plate. Approximate Weight: 4 lbs.
