The Kawasaki EL250 Eliminator front and rear turn signal bulbs utilize a P21W or 1073 bulb size. The replacement chart covers 1988 through 1992 production specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The P21W and 1073 bulbs share the same BA15s single-contact bayonet base, meaning the physical mounting interface is identical between the two types used across the Kawasaki EL250 Eliminator's turn signal positions.
Despite the shared base type, the P21W operates at 21W while the 1073 operates at 13W, making them non-interchangeable without accounting for the wattage difference, which affects load-sensitive turn signal flasher relay timing.
The P21W is an ECE-standard bulb, meaning it was developed for European and international markets, while the 1073 follows the ANSI standard used in the United States and Canada.
The 1073 is a lower-wattage variant of the 1156 bulb, sharing the same base and general form but drawing less power, which can affect compatibility with flasher relays calibrated for the 1156's higher wattage.
Both bulbs operate on a 12V electrical system and feature a single filament, making them suited exclusively for single-function signalling applications rather than combined stop/tail duties.
On the Kawasaki EL250 Eliminator, the 1988 model year uses P21W bulbs in both the front and rear turn signal positions, while the 1989 and 1991 model years use 1073 bulbs in both positions.
The 1992 model year presents a mixed fitment, with a P21W specified for the front turn signal and a 1073 specified for the rear, meaning the two positions are not interchangeable with each other on that year.