The Yamaha XV250 V Star 250 front turn signal requires a 1157 bulb size while the rear turn signal uses a 1156 bulb size. The replacement chart covers 2014 through 2021 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 Yamaha XV250 V Star 250 uses two distinct turn signal bulb types across its front and rear positions, with the front and rear circuits requiring different bulbs that are not interchangeable with each other.
The front turn signal position on the XV250 V Star 250 takes the 1157 bulb across the 2014-2021 model years.
The 1157 is a dual-filament bulb operating at 12V with a 21W main filament and a 5W secondary filament, housed in a BAY15d bayonet base, which features two offset pins at different heights to prevent incorrect insertion.
The rear turn signal position takes the 1156 bulb across the 2014-2021 model years.
The 1156 is a single-filament bulb operating at 12V at 21W, housed in a BA15s bayonet base, which uses two pins at the same height in a single-contact configuration.
Although the 1157 and 1156 share the same 21W primary wattage and both use 12V bayonet-style bases, their base configurations differ, making one a physically incompatible substitute for the other.
Both the 1157 and 1156 are classified under ANSI standards applicable to the US and Canada, meaning they conform to a standardized specification rather than a proprietary or manufacturer-specific designation.
The dual-filament design of the 1157 in the front position allows it to serve two electrical functions within a single housing, a capability the single-filament 1156 in the rear position does not share.