Dodge W350 License Plate Bulb Size

The Dodge W350 license plate light utilizes 168 and 67 bulb sizes according to the provided technical specifications for the vehicle. Data for the lighting components spans from 1983 through 1993 for the listed truck.

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
1988-1993	168
1985-1987	67
1983-1984	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67

Other Locations

Additional Notes

The Dodge W350 uses two distinct bulb types for the license plate position across its model years: the 168 and the 67, both of which are ANSI-standardized for the US and Canadian markets.
The 168 bulb is a T10 miniature wedge type rated at 12V and 4.9W. Its wedge base means it is held in place by the socket itself rather than by a locking mechanism such as a bayonet collar.
The 67 bulb uses a BA15s single-contact bayonet base and is rated at 12V and 8W. The BA15s designation indicates a single-filament configuration with a 15mm base width, requiring a twist-lock installation into a compatible bayonet socket.
Because the 168 uses a wedge base and the 67 uses a bayonet base, the two bulb types are not interchangeable. Each requires a physically different socket, so substituting one for the other is not possible without modifying the socket housing.
The Dodge W350 uses the 168 bulb for the 1988-1993 license plate position, accounting for six of the eleven model years covered in the specifications.
The 67 bulb applies to the 1985-1987 model years, representing a three-year period during which the W350 used the higher-wattage bayonet-base configuration for the license plate light.
The 1983-1984 model years return to the 168 wedge bulb, which means the W350 used the 168 both before and after the period in which the 67 was specified.
At 8W, the 67 bulb draws notably more power than the 4.9W 168. This difference is relevant when assessing socket and wiring compatibility, as the two positions in the vehicle's history were designed around different electrical loads.