Polaris 800 XCR Brake Bulb Size

The Polaris 800 XCR brake light utilizes a 921 bulb size for illumination across all listed vehicle applications. Data for the specified component covers the period from 1999 through 2003.

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
1999-2003	921	W16W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921	Check Price

Other Locations

Additional Notes

The 921 bulb is the sole brake bulb type listed for the Polaris 800 XCR across the 1999-2003 model years.
The 921 is an ANSI-standardized bulb type, meaning its physical and electrical specifications are governed by a recognized North American standard shared across the United States and Canada.
The 921 uses a wedge-style base, designated T15, which refers to a tubular glass envelope roughly 15/8 of an inch wide. This base type requires no locking pins or bayonet twist to seat, relying instead on tension from the socket walls.
The bulb operates at 12 volts and draws 16 watts, placing it in the low-wattage range typical of auxiliary and signal lighting rather than primary illumination.
The wedge T15 form factor is shared by several bulb numbers in the ANSI series, so substitution with a visually similar wedge bulb of a different designation risks a voltage or wattage mismatch even when the base fits the socket.