Replacement ignition switch box designed specifically for the Harbor Central Pneumatic 30 Gallon 420cc Air Compressor. Restores reliable start/stop control so your compressor powers on and off as intended, minimizing downtime and avoiding the expense of a full compressor replacement. Key benefits Direct replacement for the original ignition switch box on the Harbor Central Pneumatic 30 Gallon 420cc model — fits where the factory unit mounts. Restores proper starting and stopping operation so tools and accessories receive consistent air supply. Saves time and money compared with buying a compressor by repairing the existing unit. Straightforward maintenance item for hobbyists and professionals who perform basic compressor repairs. Key attributes Functionality: ignition switch box that controls the compressor motor start/stop function and interfaces with existing wiring and controls on the specified compressor model. Compatibility: made for Harbor Central Pneumatic 30 Gallon 420cc Air Compressor (matches the original unit's intended model). Size and fit: designed to match the original equipment form factor for a direct replacement fit on the stated compressor. Construction and durability: built to withstand normal workshop conditions when installed as a replacement part. Performance: restores dependable electrical control of compressor starting and stopping when the original switch box has failed or become unreliable. Installation and use Installation is a direct replacement procedure for users familiar with basic compressor maintenance: remove the old switch box, transfer or reconnect the existing wiring and mounting hardware, and secure the unit. Always disconnect power and bleed the air tank before servicing the compressor to ensure safe installation. Typical applications Home garage : a worn or failed ignition switch box to keep a 30gallon 420cc compressor running for air tools, inflation, and cleaning tasks. Small maintenance: restore starting control for compressors used with pneumatic tools, spray guns, and tire service equipment. Preventive maintenance: carry as a spare part to minimize downtime when the original switch box shows signs of wear or intermittent operation. Compatibility note Intended specifically for the Harbor Central Pneumatic 30 Gallon 420cc Air Compressor. Verify your compressor model matches before .