This is the Camry 2AR-FE so called Variable discharge oil pump or 3-stage oil pump:
https://toyota-club.net/files/faq/16-01-01_faq_oil-pump_eng.htm
Toyota might came up with this oil pump to compensate for the low viscosity 0W20 oil and improve oil pressure and lubrication at low and high RPM.
https://toyota-club.net/files/faq/16-01-01_faq_oil-pump_eng.htm
Toyota might came up with this oil pump to compensate for the low viscosity 0W20 oil and improve oil pressure and lubrication at low and high RPM.
