Backup LEDs for 2010-2021 GMC Terrain (pair), XPR (720 lumens) BMW Fitment: The 4257 HP24 Switchback

Fitment: The 4257 HP24 Switchback bulb is compatible with Ford vehicles using a dual-filament 4257-size front turn signal bulb with a clear reflector lens

then you're out of luck

Elevate your drive today with the S-V

so double-check for compatibility

They come standard with H4 3-pin male inputs and should be plug and play on most classic cars / trucks

Backup LEDs for 2010-2021 GMC Terrain (pair), XPR (720 lumens) BMW Fitment: The 4257 HP24 SwitchbackUpgrade. Add more light output and a modern appearance to your backup lights with the 921 XPR backup bulb. Each of the four sides of this bulb is populated with 4 high power LED chips for maximum brightness. Housed in an aluminum casing with a textured finish for superior heatsinking properties the XPR will last for years to come. Best of all installation only takes minutes simply take out your factory bulb and the XPR will fit snugly in the socket.