The John Deere Gator XUV 590i front and rear turn signal bulbs both utilize a 3157NA bulb size. The replacement chart covers 2016 to 2017 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 3157NA is the sole bulb type listed across all turn signal positions for the John Deere Gator XUV 590i, covering both the 2016-2017 model years.
The 3157NA is an ANSI-standardized bulb, meaning its physical and electrical specifications conform to a regulated North American standard used across a wide range of vehicle manufacturers.
The bulb operates on a 12-volt system and carries a dual-wattage rating of 27W and 7W, corresponding to its two filaments, which serve high-intensity and low-intensity functions respectively within the same housing.
The dual-filament design of the 3157NA allows a single bulb to handle more than one lighting function, a common arrangement in automotive applications where turn signal and parking light duties share one assembly.
The natural amber glass of the 3157NA produces a yellow-orange light output directly from the bulb itself, without relying on a colored lens to achieve the amber signal color.
The T25 wedge form factor describes the bulb's base type, which uses a plastic wedge rather than a metal pin or bayonet fitting to seat and make electrical contact within the socket.
The 3157NA designation is distinct from the closely related 3157 bulb, which uses clear glass rather than natural amber glass. The two are not interchangeable where amber output is a regulatory or design requirement.
The same 3157NA specification applies to both the front and rear turn signal positions on the John Deere Gator XUV 590i for the 2016-2017 model years, indicating a shared socket type across both ends of the vehicle.