John Deere Gator TX 4x2 Vehicle-Mounted Spotlight Bulb Bulb Size
John Deere Gator TX 4x2 front and rear vehicle-mounted spotlight bulbs utilize an H3 bulb size for both positions. The replacement chart covers 2010 through 2017 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 John Deere Gator TX 4x2 uses the H3 bulb size for both its front and rear vehicle-mounted spotlight positions across the 2010-2017 model years.
The H3 is a single-filament halogen bulb, meaning it contains one tungsten filament enclosed within a halogen gas-filled envelope, which allows for higher operating temperatures and greater luminous efficiency than standard incandescent bulbs.
H3 bulbs use a PK22s base, a pinch-base design where the electrical contacts are integrated into the flattened glass pinch at the bottom of the bulb rather than a screw or bayonet fitting.
The H3 operates at 12 volts and 55 watts, placing it within the standard low-voltage automotive electrical system range common to most passenger and utility vehicles.
The H3 is an ECE-regulated bulb type, meaning its construction and output conform to standards established under the United Nations Economic Commission for Europe, which governs lighting equipment across European and many worldwide markets.
H3 approval extends beyond ECE jurisdictions, as the bulb is also recognized for use in the United States and Japan, reflecting broad international regulatory acceptance.
Both the front and rear spotlight positions on the Gator TX 4x2 share the same H3 specification, indicating that a single bulb type serves both mounting locations without variation between them.