The Dodge Ram 3500 Van side marker requires a 168 bulb size for the lighting component. Data for the specific bulb requirements covers the 2001 through 2001 range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Dodge Ram 3500 Van front side marker position uses two distinct bulb sizes across its model years: the 3457 for 1999-2001 and 2003, and the 3157 for 2002.
Both the 3457 and 3157 are ANSI-standard dual-filament T25 wedge bulbs rated at 12V with a 27W/7W output, meaning one filament operates at 27 watts and the other at 7 watts.
Despite sharing identical voltage ratings, wattage ratings, and physical T25 wedge form factors, the 3457 and 3157 are listed as separate part numbers and are not treated as interchangeable in these specifications.
The 2002 model year stands apart from all other listed front side marker years, as it is the only year specified with the 3157 bulb rather than the 3457.
The rear side marker position on the Dodge Ram 3500 Van uses the 168 bulb for 1999-2001.
The 168 is an ANSI-standard single-filament T10 miniature wedge bulb rated at 12V and 4.9W, making it significantly lower in wattage than the dual-filament T25 bulbs used at the front.
The T10 and T25 designations refer to the physical size of the wedge base, with T10 being the smaller of the two types present in these specifications, and the two are not physically interchangeable.
All bulb sizes listed across both positions conform to ANSI standards applicable in both the United States and Canada.