The John Deere Gator TS 4x2 front turn signal uses a 3457 bulb size while the rear turn signal requires a P21W bulb size. The replacement chart covers 2010 through 2017 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 John Deere Gator TS 4x2 uses two distinct bulb types across its front and rear turn signal positions for the 2010-2017 model years.
The 3457 is an ANSI-standard bulb used in the United States and Canada. It is a dual-filament T25 wedge bulb rated at 12 volts, with filaments drawing 27 watts and 7 watts respectively.
The dual-filament design of the 3457 allows it to serve more than one lighting function from a single housing, with the higher-wattage filament typically handling the brighter signal output and the lower-wattage filament handling a secondary function such as parking or running light duty.
The front turn signal position on the Gator TS 4x2 takes the 3457 bulb across all documented model years from 2010-2017.
The P21W is an ECE-standard bulb used in European and international markets. It is a single-filament bulb rated at 12 volts and 21 watts, fitted with a BA15s bayonet base.
The BA15s bayonet base of the P21W features a single contact pin, which distinguishes it from dual-contact bayonet variants and makes it non-interchangeable with those types.
The rear turn signal position on the Gator TS 4x2 takes the P21W bulb across all documented model years from 2010-2017.
The 3457 and P21W operate on the same 12-volt supply but differ in base type, filament count, and regulatory standard, making them incompatible with each other's sockets.