BMW Motorcycle R60/6 uses 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1973 to 1976 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 9003 bulb is the sole bulb type specified across all headlight positions for the BMW Motorcycle R60/6, covering model years 1973-1976.
The 9003 is a dual-filament halogen bulb, meaning a single unit contains separate filaments for both high and low beam functions, which accounts for its use in both headlight positions on this motorcycle.
The 9003 operates on a 12-volt electrical system and carries a wattage rating of 60W on the high beam filament and 55W on the low beam filament.
The 9003 uses a P43t base, a standardized bayonet-style fitting that determines physical compatibility with the headlight housing.
The 9003 designation follows the ANSI standard applicable in the United States and Canada. This standard defines the bulb's electrical and physical characteristics within those markets.
The 9003 and H4 bulbs share the same dual-filament halogen design and P43t base, though they originate from different standardization systems, ANSI and ECE respectively. These two types are commonly regarded as functionally interchangeable in many applications, though fitment should be confirmed against the specific housing before substitution.