Volkswagen Rabbit Pickup front turn signal bulbs measure P21/5W in size, while rear turn signal bulbs measure P21W in size. The replacement chart covers 1980 through 1983 model years and contains vehicle 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 Volkswagen Rabbit Pickup uses two distinct bulb types across its turn signal system: the P21/5W at the front and the P21W at the rear, both governed by ECE standards used in Europe and worldwide markets.
Both bulb types operate on a 12-volt electrical system, which was the standard automotive voltage for this vehicle throughout the 1980-1983 model years.
The P21/5W is a dual-filament bulb, meaning it carries two separate filaments within a single housing, rated at 21 watts and 5 watts respectively.
The P21W is a single-filament bulb rated at 21 watts, dedicated solely to turn signal function at the rear of the vehicle.
The front turn signal of the Volkswagen Rabbit Pickup (1980-1983) uses the P21/5W, which features a BAY15d bayonet base. This offset-pin base is designed to prevent incorrect installation by ensuring the bulb can only be seated in one orientation.
The rear turn signal uses the P21W, which features a BA15s bayonet base. Unlike the BAY15d, the BA15s has a single-pin configuration suited to single-filament applications.
The BAY15d and BA15s bases are physically incompatible with each other, meaning the front and rear turn signal bulbs are not interchangeable despite sharing the same 21-watt primary output.
The P21/5W specification remained consistent across all four model years (1980-1983) for the front turn signal, and the P21W remained consistent across the same span for the rear turn signal.