The Argo Aurora 850 uses 9005 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2020 to 2021 vehicle production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9005 is a single-filament halogen bulb operating at 12 volts and 65 watts, built to the ANSI standard recognized in the United States and Canada.
The 9005 uses a P20d base, a locking-tab design that secures the bulb mechanically into the socket without requiring a separate retaining ring.
The Argo Aurora 850 uses the 9005 bulb for both the high beam and low beam headlight positions across the 2020-2021 model years.
Because the high beam and low beam positions share the same 9005 bulb type, a single replacement bulb specification applies to both functions on this vehicle.
The single-filament construction of the 9005 means each bulb serves only one lighting function, which is why separate bulbs are required for high and low beam operation despite sharing the same part number.
The 9005 is not interchangeable with dual-filament bulbs such as the 9004 or 9007, as those use different base configurations and wiring arrangements incompatible with a single-filament socket.