https://www.autowebnews.org/upgrading-your-2017-dodge-ram-1500-fog-lights/ autowebnews.org

When shopping for fog lights for your 2017 Ram 1500, you have two main options: LED replacement bulbs or complete LED fog light assemblies. Replacement bulbs are the budget-friendly choice. Simply remove the factory halogen bulb and install an LED bulb with the correct base type—the 2017 Ram 1500 typically uses 9006 or PSX24W bulbs for fog lights. Look for bulbs with a 1:1 filament position match to ensure proper beam pattern. Complete LED fog light assemblies, however, offer superior performance and a factory-integrated look. These assemblies replace the entire housing and often feature built-in projector lenses, daytime running lights (DRLs), and even sequential turn signals. They are fully sealed against moisture, eliminating the risk of fogging or internal corrosion. Choose DOT-approved assemblies to ensure compliance with safety regulations and proper beam cutoff.