Freightliner M2 Parking Light Bulb Size

The Freightliner M2 parking light uses a 3157NA bulb size for replacement applications across multiple model generations. The replacement chart covers vehicle production from 2002 to 2024.

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	US Type	EU Type	Shop
2002-2024	3157NA	PY27/7W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.	3157NA	Check Price

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Additional Notes

The Freightliner M2 uses the 3157NA bulb for the parking light position across all model years from 2002-2024.
The 3157NA is a dual-filament bulb, meaning it contains two separate filaments within a single housing, one rated at 27W and the other at 7W, allowing it to serve both a brighter and a dimmer output function.
The bulb operates on a 12V electrical system, which is the standard voltage for automotive lighting circuits.
The 3157NA carries a natural amber glass envelope, which produces an amber-colored output without the use of a colored lens or coating on the fixture itself.
The T25 designation refers to the wedge-style base and the tubular glass shape of the bulb, which is a common form factor in North American vehicle lighting applications.
The 3157NA conforms to ANSI standards recognized in both the United States and Canada, indicating a standardized specification for base type, filament position, and electrical ratings.
The "NA" suffix in the 3157NA designation distinguishes it from the standard 3157 bulb by specifying the natural amber glass, making the two variants non-interchangeable in applications where lens color is a factor in achieving the required output color.