BMW Motorcycle RG1200GS headlight bulbs use H7 size for both high and low beam functions. The replacement chart covers 2004 to 2006 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H7 is a single-filament halogen bulb operating at 12 volts and 55 watts, fitted with a PX26d base. The single-filament design means one bulb serves one lighting function, which is why the BMW Motorcycle R1200GS uses separate H7 bulbs for the high beam and low beam circuits.
The H7 bulb is rated under the ECE standard, a regulatory framework covering Europe and much of the world. It also holds approval in the United States and Japan, giving it broad international compliance across major automotive markets.
The PX26d base is a keyed, two-pin connector specific to the H7 format. Its asymmetric design prevents incorrect installation orientation, which is relevant to proper beam alignment in a headlight housing.
Both the high beam and low beam headlight positions on the R1200GS use the H7 bulb type across the 2004-2006 model years, meaning the same bulb specification applies to all six positions covered in these fitment records.
Because both beam positions share the same H7 specification, a replacement bulb physically compatible with one position is also compatible with the other. However, the two circuits remain electrically independent and are not interchangeable in function.
At 55 watts, the H7 falls within the standard halogen output range. Substituting a higher-wattage bulb in the same base format risks exceeding the thermal and electrical tolerances of the original headlight housing and wiring.