Polaris Wide Trak Tail Light Bulb Size

The Polaris Wide Trak tail light requires bulb size 194 or 1157 depending on the specific configuration of the lighting assembly. Data for the provided specifications covers the range from 1991 to 1993.

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
1993	194	W5W	Check Price
1991-1992	1157	P21/5W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price
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 bulb is a dual-filament type with a BAY15d bayonet base, rated at 12V with a power draw of 21W on the high filament and 5W on the low filament. This dual-filament design allows a single bulb to serve two lighting functions, typically stop and tail, within one housing.
The 194 bulb is a T10 miniature wedge type rated at 12V and 3.78W. Its wedge base requires no locking mechanism, as the base itself holds the bulb in place by friction within the socket.
The 1157 and 194 are both ANSI-standardized bulbs recognized in the US and Canada, meaning they conform to defined electrical and physical specifications rather than proprietary formats.
The Polaris Wide Trak used the 1157 bulb for the 1991-1992 model years and switched to the 194 bulb for the 1993 model year. These two bulb types are not interchangeable due to differences in base design, wattage, and filament configuration.
The 1157 operates at significantly higher wattage than the 194, and its BAY15d bayonet base is physically incompatible with the wedge socket used by the 194. Substituting one for the other is not possible without socket modification.