Ski-Doo GSX 800 Brake Bulb Size

The Ski-Doo GSX 800 brake light requires a bulb with the specific 1157 size for proper installation and function. Data for the specified component covers the period from 2004 through 2005.

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	US Type	EU Type	Shop
2012-2015	1157	P21/5W	Check Price
2004-2008	1157	P21/5W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157	Check Price
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.	P21/5W	Check Price

Other Locations

Additional Notes

The 1157 is the sole brake bulb type specified for the Ski-Doo GSX 800 across all listed model years.
The 1157 is an ANSI-standard bulb recognized in both the United States and Canada, making it a widely available replacement part in North American markets.
As a dual-filament bulb, the 1157 operates two separate filaments within a single envelope: one rated at 21W for the brake function and one at 5W for the running light function.
The 1157 uses a BAY15d bayonet base, which features two offset pins at different heights to ensure the bulb is seated in only one rotational position, preventing incorrect filament alignment.
The bulb operates on a 12V electrical system, consistent with standard 12-volt snowmobile electrical architecture.
The GSX 800 uses the 1157 specification across the 2004-2008 and 2012-2015 model years.
Because the BAY15d base is position-indexed, substituting a single-filament bayonet bulb or a bulb with a different pin configuration would result in an incompatible fitment.