The Polaris 550 WideTrak LX headlight bulb sizes consist of 886 for high beam and 9003 for low beam applications. The replacement chart covers 2016 through 2019 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Polaris 550 WideTrak LX uses two distinct halogen bulb types across its headlight system for the 2016-2019 model years: the 886 for high beam and the 9003 for low beam.
The 886 is a single-filament halogen bulb operating at 12V and 50W, fitted with a PGJ13 base, and is standardized under ANSI specifications applicable in both the US and Canada.
The 9003 is a dual-filament halogen bulb operating at 12V with a wattage rating of 60W on the high filament and 55W on the low filament, fitted with a P43t base, and is likewise an ANSI-standardized type for the US and Canada.
The dual-filament construction of the 9003 means it contains two independent filaments within a single bulb envelope, each serving a separate lighting function, though in this application only the low beam function is used.
The PGJ13 base of the 886 and the P43t base of the 9003 are physically incompatible with each other, meaning the two bulb types are not interchangeable between the high beam and low beam positions.
Both bulb types share the same 12V operating voltage, which is consistent with the standard electrical systems found in this class of powersport vehicle.
The 886 bulb specification remained unchanged across all four model years covered, as did the 9003, indicating a stable headlight fitment across the 2016-2019 production run of the 550 WideTrak LX.