The Freightliner M2 headlight bulb sizes include 9005XS for high beam and 9006XS for low beam applications. The replacement chart covers vehicle production from 2002 to 2024 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 Freightliner M2 uses the 9005XS for the high beam headlight and the 9006XS for the low beam headlight across all model years from 2002-2024.
The 9005XS is a short-neck variant of the standard 9005 bulb. The "XS" designation indicates a reduced collar height, which is required in housings with tighter clearance behind the headlight assembly.
Similarly, the 9006XS is a short-neck variant of the standard 9006 bulb, sharing the same XS collar modification for restricted-space fitment.
The 9005 and 9006 families use different base configurations, making them non-interchangeable with each other. The high beam and low beam positions on the M2 each require their respective bulb type.
A standard 9005 or 9006 bulb without the XS designation is not a direct drop-in replacement for the M2, as the longer collar on non-XS variants may prevent proper seating in the headlight housing.
The 9005XS operates at 65 watts and produces a high-intensity halogen output suited for high beam projection distances. The 9006XS operates at 55 watts, producing a controlled beam pattern appropriate for low beam use.
Both the 9005XS and 9006XS use a P22d base type, which is a single-contact bayonet-style base common across the 9000-series halogen bulb family.
The consistency of bulb specifications across the full 2002-2024 production span of the M2 indicates that the headlight housing design remained unchanged in terms of bulb socket and clearance requirements throughout that period.