CAT Factory Password generator REAL 18 Digit factory permissions UNLIMITED CAT password refers to the factory passwords required to perform certain functions in the Caterpillar Electronic Technician (ET) software (to unlock ECM parameters on Request). This is the 18 digit password generator which can be used to : reset operator inducements, change serial numbers, personality mismatch codes, engine hp ratings, machine security key install status, delayed cooldowns, lifetime hours, idle hours, engine lifetime revolutions, DPF regenerate and delete, Engine re-rate , clear ECM memory as dealer and all parameters needs to be programmed