Ski-Doo GTX 500SS Tail Light Bulb Size

The Ski-Doo GTX 500SS tail light requires a 1157 bulb size for proper illumination. The replacement chart covers vehicle production spanning 2005 to 2009 with corresponding bulb specifications.

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
2005-2009	1157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157

Other Locations

Additional Notes

The Ski-Doo GTX 500SS uses the 1157 bulb for the tail light across the 2005-2009 model years.
The 1157 is an ANSI-standardized bulb type recognized across the United States and Canada, operating on a 12-volt electrical system.
As a dual-filament bulb, the 1157 carries two separate filaments rated at 21 watts and 5 watts, allowing it to serve both a brighter stop-light function and a dimmer running-light function within a single housing.
The 1157 uses a BAY15d bayonet base, a two-pin offset base design that physically prevents incorrect insertion by positioning the two pins at different heights.
The BAY15d base is not interchangeable with single-filament bayonet bases such as the BA15s, as those lack the second pin required to activate both filaments independently.