Polaris 550 IQ Shift Tail Light Bulb Size

Additional Notes

• The 1157 is the tail light bulb size specified for the Polaris 550 IQ Shift across the 2009-2013 model years.
• The 1157 bulb follows the ANSI standard recognized in the United States and Canada, meaning it conforms to a defined set of dimensional and electrical specifications shared across compliant manufacturers.
• This bulb uses a dual-filament design, which allows a single unit to serve two distinct lighting functions, typically a lower-intensity running or parking light and a higher-intensity brake or stop light.
• The 1157 operates on a 12-volt electrical system, consistent with the standard automotive and powersports vehicle architecture.
• The two filaments are rated at 21 watts and 5 watts respectively, with the higher wattage filament producing the brighter output associated with active braking signals.
• The BAY15d bayonet base features two offset pins positioned at different heights, a design that prevents incorrect insertion and ensures the higher-wattage filament is always oriented to the correct circuit contact.
• The BAY15d base type is a widely used standard, meaning 1157 bulbs from different manufacturers are generally interchangeable as long as the voltage and wattage ratings match the original specification.