21/5 Watt Stop & Tail Bulb with BAY15d Base for Tractor and Equipment Lighting SKU: QT1413

When your tractor's rear lighting fails, you're not just dealing with an inconvenience—you're facing safety risks and potential legal issues during road travel. This dual-filament bulb restores proper stop and tail light function, giving you the bright braking signal and steady running light your equipment needs for safe operation.

Why This Bulb Works

• BAY15d base with offset pins prevents incorrect installation and ensures proper electrical contact
• Dual filaments deliver 21 watts for bright stop signals and 5 watts for steady tail lighting
• Automotive-grade construction withstands farm equipment vibration and weather exposure
• Standard 12-volt design works with all agricultural equipment electrical systems

Whether you're moving equipment between fields at dusk, hauling implements on county roads, or working around the farmyard after dark, reliable rear lighting keeps you visible to other drivers and legally compliant. Need help confirming fitment? Our parts experts have been solving lighting problems since 1969.