NOTE: A motor-pump is NOT an air compressor. A replacement motor-pump can be easily installed (spliced) into existing California Air Tools equipment - refer to video above.
CAUTION: 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 a California Air Tools 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.
Replacement California Air Tools spare parts are available via Jacks Small Engines or Master Tool Repair (Authorized Spare Parts providers). Look up the needed part(s) by searching via the respective air compressor model on website:
Master Tool Repair
https://mastertoolrepair.com/air-compressor-parts-by-brand-california-air-tools-parts-c-1518.html
Jacks Small Engines