Kawasaki EL250 Eliminator Brake Bulb Size

Additional Notes

• The Kawasaki EL250 Eliminator uses the 1157 bulb for the brake light across the 1988-1992 model years, with 1990 absent from the listed fitment data.
• The 1157 is an ANSI-standardized bulb, meaning its physical and electrical specifications are governed by a recognized North American standard applicable in both the United States and Canada.
• This bulb carries a BAY15d bayonet base, a dual-pin offset design that prevents incorrect rotational installation, distinguishing it from single-filament bayonet types with symmetrical pin placement.
• The dual-filament construction operates at 21W for the brake or turn function and 5W for the running light function, both at 12 volts, allowing a single bulb to serve two lighting roles simultaneously.
• Because the 1157 is a dual-filament type, substituting it with a single-filament 1156 bulb, which shares the same bayonet base diameter, would result in the loss of one lighting function despite the physical fit being possible.
• The BAY15d base uses two pins positioned at different heights on the base, a feature that enforces correct filament orientation relative to the socket contacts and prevents the high-wattage filament from being wired to the low-wattage circuit.