The Kawasaki W650 front turn signal requires a 1034 bulb size while the rear turn signal uses a P21W bulb size. The replacement chart covers 2000 to 2001 model years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Kawasaki W650 uses two distinct bulb types across its turn signal positions: the 1034 at the front and the P21W at the rear, both operating on a 12-volt system for the 2000-2001 model years.
The 1034 is an ANSI-standard bulb used in the United States and Canada. It features a dual-filament design with a BAY15d bayonet base and a 21/5W power rating, where the two wattage values correspond to its two separate filaments.
The 1034 is a variant of the 1157, meaning the two types share a close relationship in design. However, physical and electrical differences between bulb variants can affect fitment, so substitution without verification of compatibility is not advisable.
The BAY15d base of the 1034 is an offset-pin bayonet mount. The two pins are positioned at different heights, which prevents the bulb from being inserted in the wrong orientation and ensures correct filament assignment within the socket.
The P21W is an ECE-standard bulb used in European and international markets. It is a single-filament signalling bulb rated at 21W, making it dedicated solely to turn signal function without a secondary filament for other lighting duties.
The P21W uses a BA15s bayonet base, which is a single-contact mount with two side pins at equal heights. This base is not interchangeable with the BAY15d base found on the 1034, as the pin configurations differ between the two standards.
The front and rear turn signal positions on the W650 use bulbs from different international standards, ANSI at the front and ECE at the rear, which means the two positions require separate bulb types and are not interchangeable with each other.