Plymouth Gran Fury front and rear side marker bulbs utilize 168, 194NA, and 194 bulb sizes depending on location and model configuration. The replacement chart covers 1972 through 1989 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 168 bulb is the most frequently specified size across both front and rear side marker positions on the Plymouth Gran Fury, appearing in the majority of model years covered by these specifications.
The 168 is a T10 miniature wedge bulb rated at 12V and 4.9W, conforming to ANSI standards for the US and Canadian markets.
The 194 and 194NA bulbs share the same T10 miniature wedge form factor and 12V operating voltage as the 168, though both are rated at a lower 3.78W output.
The 194NA variant used in the Plymouth Gran Fury (1983-1984) front side marker position incorporates natural amber glass, which produces a colored output directly from the bulb rather than relying on a tinted lens.
The 1157 bulb specified for the 1983-1984 rear side marker positions is a dual-filament type with a BAY15d bayonet base, rated at 12V with a 21W high filament and a 5W low filament.
The BAY15d bayonet base of the 1157 is physically incompatible with the wedge-style sockets used by the 168, 194, and 194NA bulbs, making cross-substitution between these types impossible without socket modification.
The 1972 model year specifies the 194 bulb for both front and rear side marker positions, while the 1983-1984 years each use a different bulb type between the front and rear positions.
The front and rear side marker positions share identical bulb specifications for all model years except 1983-1984, when the rear position requires the higher-wattage 1157 and the front position uses the 194NA.