Plymouth Sport Wagon front and rear turn signal bulbs both utilize a 1034 size bulb for proper operation. The replacement chart covers 1960 to 1961 model 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 Plymouth Sport Wagon uses the 1034 bulb across all listed positions and model years, making it the sole bulb type present in these specifications.
The 1034 is an ANSI-standard bulb recognized in both the United States and Canada, operating on a 12-volt electrical system with a dual-filament design rated at 21/5 watts.
A dual-filament bulb contains two separate filaments within a single envelope, allowing one filament to serve a higher-intensity function, such as turn signaling, while the other handles a lower-intensity function, such as running light duty.
The 1034 uses a BAY15d bayonet base, a two-pin offset base type that physically prevents incorrect insertion by positioning its two pins at different heights along the base.
The 1034 is described as a variant of the 1157, a widely used automotive bulb sharing the same dual-filament, BAY15d configuration, though the two are not confirmed as interchangeable within these specifications.
The Plymouth Sport Wagon (1960-1961) uses the same 1034 bulb for both the front and rear turn signal positions, meaning a single bulb type serves all four turn signal sockets on the vehicle.