Suzuki Motorcycle LT-A700X KingQuad 4x4 Tail Light Bulb Size

The Suzuki Motorcycle LT-A700X KingQuad 4x4 tail light requires a P21/5W bulb for the rear lighting assembly. Data for the specified component covers the period from 2005 through 2007.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2005-2007	P21/5W

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.	P21/5W

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Additional Notes

The Suzuki Motorcycle LT-A700X KingQuad 4x4 uses the P21/5W bulb as its tail light specification across the 2005-2007 model years.
The P21/5W is a dual-filament bulb, with one filament rated at 21W for braking or turn signal functions and a second filament rated at 5W for the running light function.
This bulb type uses a BAY15d bayonet base, which features two offset pins at different heights to prevent incorrect insertion and ensure proper filament alignment.
The P21/5W operates on a 12V electrical system, consistent with standard 12-volt vehicle wiring.
The P21/5W designation follows ECE (Economic Commission for Europe) standards, meaning the bulb is specified under a globally recognized regulatory framework used across Europe and many other markets worldwide.
The BAY15d base is specific to dual-filament applications and is not interchangeable with the BA15s single-contact bayonet base, which is used in single-filament bulbs of similar physical size.