Freightliner Sprinter Parking Light Bulb Size

Freightliner Sprinter parking light bulbs utilize 3457NA and 12961 size specifications for replacement applications. The replacement chart covers vehicle production spanning 2002 to 2021.

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 Size
2019-2021	3457NA (With Halogen Capsule Headlamps)
2007-2009	3457NA
2002-2006	12961

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.	3457NA
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The 3457NA is an ANSI-standardized bulb used in the United States and Canada. It is a dual-filament wedge bulb in a T25 form factor, rated at 12 volts with a 27W high filament and a 7W low filament. Its glass envelope is natural amber, which produces a yellow-orange light output without the need for an external amber lens.
The dual-filament design of the 3457NA means the bulb serves two lighting functions within a single housing. In a parking light application, the lower 7W filament is the active circuit, while the 27W filament is associated with a secondary function such as turn signaling.
The 12961 is a Philips part number designating a miniature wedge bulb in a T10 form factor. It uses a W2.1x9.5d base and is rated at 12 volts and 5W. It is a single-filament bulb, which reflects its use in a lower-demand lighting position.
The Freightliner Sprinter used the 12961 bulb for the parking light position across the 2002-2006 model years. Beginning with the 2007 model year, the specification changed to the 3457NA, a physically larger and higher-wattage dual-filament bulb. These two bulb types are not interchangeable due to differences in base type, filament count, wattage, and form factor.
For the 2019-2021 model years, the 3457NA specification carries a conditional note indicating it applies specifically to vehicles equipped with halogen capsule headlamps. This suggests the parking light circuit or housing configuration may differ depending on the headlamp system installed on the vehicle.