Freightliner MB Line Parking Light Bulb Size

The Freightliner MB Line parking light requires a bulb size of 198 for the specific lighting assembly. Data for the lighting components 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 (Cab Over Engine)	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 MB Line uses the 198 bulb for its parking light across the 1995-1997 model years, specifically in the Cab Over Engine configuration.
The 198 bulb is classified as a miniature wedge type with a T5 form factor, meaning it uses a wedge-style base rather than a bayonet or screw base, and fits into a correspondingly small socket.
This bulb operates at 12 volts and draws 2 watts, placing it among the lower-output bulbs used in automotive lighting, consistent with a parking light function rather than a primary illumination role.
The 198 is an ANSI-standardized bulb recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical parameters shared across compliant manufacturers.
The T5 designation refers to the tubular envelope of the bulb, with the number indicating its width in eighths of an inch, making it a notably small-bodied lamp.
Because the 198 is a wedge-base bulb, it has no separate metal base component; the glass envelope itself, with its pinched and flattened end, serves as the retention mechanism within the socket.