Polaris Trail RMK Tail Light Bulb Size

The Polaris Trail RMK tail light utilizes 1157 and 194 bulb sizes for the lighting components. Data for the specified vehicle covers the range from 1997 through 2010.

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
2004-2010	1157	P21/5W	Check Price
2000-2003	194	W5W	Check Price
1997-1998	194	W5W	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
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

Other Locations

Additional Notes

The Polaris Trail RMK uses two distinct tail light bulb types across its model years: the 1157 and the 194, both of which conform to ANSI standards recognized in the United States and Canada.
The 1157 bulb is a dual-filament type mounted on a BAY15d bayonet base, rated at 12V with a wattage split of 21W and 5W, where the higher filament typically serves the brake light function and the lower filament serves the running light function.
The 194 bulb is a miniature wedge type in the T10 form factor, rated at 12V and 3.78W, making it a single-filament, low-output bulb suited to basic illumination tasks.
The Polaris Trail RMK (2004-2010) takes the 1157 bulb as the specified tail light fitment.
Model years 1997-1998 and 2000-2003 use the 194 bulb for the tail light position.
The 1157 and 194 bulbs are not interchangeable. The 1157 uses a BAY15d bayonet base, while the 194 uses a wedge-style base, and the two differ substantially in wattage and filament count.
The BAY15d base of the 1157 features offset pins that prevent incorrect insertion orientation, a design characteristic that distinguishes it from single-contact bayonet bases.