The crash happened on Friday, Jan. 28, at the intersection of Corporate Center and Davidson drives.
Police say the woman was hit as the driver was making a left-hand turn onto Davidson.
Surveillance video show the driver was in a white Nissan NV cargo van.
Anyone with information is urged to contact Monterey Park Police Traffic Investigator Castellano at 626-307-1240 or the department's watch commander at 626-307-1200.