Dodge Nitro Back Up Light Bulb Size

The Dodge Nitro back up light utilizes 3057 and 4057 bulb sizes depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 2007 through 2011.

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
2010-2011	3057
2007-2009	4057

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3057
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	4057

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Additional Notes

The Dodge Nitro uses two bulb types across its model years for the back up light position: the 3057 and the 4057.
Both the 3057 and 4057 are ANSI-standardized bulbs recognized in the US and Canada, sharing the same T25 wedge form factor, 12V operating voltage, and a dual-filament output rated at 27W and 7W.
The 3057 is specified for the Dodge Nitro in 2010-2011, while the 4057 applies to the 2007-2009 model years.
Despite their near-identical electrical and physical specifications, the 3057 and 4057 carry distinct ANSI designations, which indicates they are not rated as direct substitutes for one another in fitment guides.
The dual-filament design of both bulb types means each contains two separate tungsten filaments within a single envelope, with the higher 27W filament and the lower 7W filament serving different lighting functions.
The T25 designation refers to the wedge base size, where the number 25 corresponds to a width of approximately 25 millimeters at the base, a standard sizing convention used across many automotive applications.
Because the 3057 and 4057 share the same T25 wedge base, voltage, and wattage ratings yet differ in ANSI classification, substitution between the two types warrants verification against the specific model year before installation.