CALIFORNIA AIR TOOLS SP-9421. 2.0 Hp Ultra Quiet & Oil-Free Pump/Motor – “BRAND NEW”. The CALIFORNIA AIR TOOLS SP-9421 Ultra Quiet & Oil-Free Air Compressor Pump/Motor is designed to be one of the quietest in the industry having only 70 decibels of sound. The SP Series of Ultra Quiet Air Compressor Motors have been designed to increase duty cycle and allow for longer continuous run times. These motors are engineered to dissipate the heat better which allows for a cooler operation reducing wear and increasing life before service. The new SP-9421 motor has a valve plate design made with Swedish reed valves which improves air flow, reduces wear and decrease the sound level. The powerful 2.0 HP motor operates at only 1680 RPM creating less noise and less wear. The Oil-Free Dual Piston Pump System is engineered for high performance and durability. Oil-Free Pump – Cleaner air for better tool operation. Less maintenance and Costs. 1100v / 60 hz. Low Amp Draw – 15 Amps. L (12.4″) x W (6.1″) x H (11.7). Comes complete with – Capacitor, Air Filter and (4) Shock Struts. The SP-9421 pump/motor has a Oil-Free Dual Piston pump designed to have a life cycle of 3000 Plus hours before repair. TECH TIP: Refer to. Video on how to replace motor/pump. (110 Volts Only, 2 Hp). Supports California Air Tools Air compressor models. This is NOT an air compressor. This is a replacement motor-pump which can be easily installed into existing California Air Tools equipment. If installing onto a Non-California Air Tools air compressor or unique application you will need to have the electrical and mechanical knowledge for properly installing this motor-pump. It is important to properly configure an UNLOADER valve and CHECK VALVE with the motor pump (to correctly bleed pressure off of the pistons) otherwise damage to motor may occur. This motor is “BRAND NEW”.