Freightliner XB Line Parking Light Bulb Size

The Freightliner XB Line parking light requires a bulb size of 198 for the lighting assembly. Data for the specified component covers the range from 1995 through 1997.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Type	Shop
1995-1997	198	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	198	Check Price

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Additional Notes

The Freightliner XB Line uses the 198 bulb for the parking light across the 1995-1997 model years.
The 198 is classified as a T5 miniature wedge bulb, where "T5" denotes a tubular glass envelope with a width of 5/8 inch.
The wedge base design means the bulb is held in place by the socket gripping the base directly, with no separate metal base or pins required.
The 198 operates at 12 volts and draws 2 watts, placing it among the lower-wattage bulbs used in automotive exterior lighting applications.
The 198 carries ANSI standardization recognized in both the United States and Canada, meaning the specification is consistent across North American markets.
Because all three model years share the same bulb size, the 198 is interchangeable across the 1995-1997 XB Line without fitment variation.