Ski-Doo Expedition TUV Brake Bulb Size

Ski-Doo Expedition TUV brake bulb uses a 1157 size bulb for replacement applications. The chart covers 2005 through 2008 replacement 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	US Type	EU Type	Shop
2005-2008	1157	P21/5W	Check Price

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

The 1157 is the brake bulb size specified for the Ski-Doo Expedition TUV across the 2005-2008 model years.
The 1157 is a dual-filament bulb, meaning it contains two separate filaments within a single envelope to serve two distinct lighting functions at different wattages.
The bulb operates at 12 volts with a wattage rating of 21W on the high filament and 5W on the low filament, corresponding to its stop/tail lighting roles respectively.
The 1157 uses a BAY15d bayonet base, which features two offset pins at different heights to ensure correct orientation during installation and prevent incorrect filament activation.
The 1157 designation follows the ANSI standard recognized in both the United States and Canada, placing it within a standardized classification system for automotive and powersports lighting.
Because the BAY15d base relies on offset pins for polarity and filament alignment, substitution with single-filament bulbs or those using a different base type would result in incompatibility with the Expedition TUV brake light socket.