Ski-Doo Tundra Xtreme E-TEC 600 HO Tail Light Bulb Size

The Ski-Doo Tundra Xtreme E-TEC 600 HO tail light requires a P21/5W bulb size for proper installation and function. Data for the specified component covers the range from 2018 to 2019.

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
2012-2019	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 Ski-Doo Tundra Xtreme E-TEC 600 HO uses the P21/5W bulb for its tail light across the 2012-2019 model years.
The P21/5W is a dual-filament bulb, meaning it contains two separate filaments within a single glass envelope, one rated at 21 watts and the other at 5 watts, allowing it to serve both braking and running light functions simultaneously.
The P21/5W operates on a 12-volt electrical system, which is standard for most powersports and automotive lighting circuits.
This bulb uses a BAY15d bayonet base, a two-pin offset base design where the two pins are positioned at different heights to ensure the bulb can only be inserted in the correct orientation, preventing filament misalignment.
The P21/5W is governed by ECE (Economic Commission for Europe) standards, a regulatory framework recognized across Europe and numerous other markets worldwide.
Because the BAY15d base is offset, it is not interchangeable with the BA15d base, which shares a similar appearance but features pins at equal heights, making physical fitment unreliable and potentially causing incorrect filament activation.