This Volkswagen headlight dimmer relay restores proper high/low beam switching when the original relay becomes weak or fails. A bad relay can cause headlights to flicker, refuse to switch beams, or stop working—making night driving unsafe and frustrating. Built as an OE-quality replacement, this 5-prong, 12-volt relay is rated at 25/25A and is designed for alternator-equipped Volkswagens. Install it as a direct replacement to bring back dependable beam switching and consistent lighting performance. Fits the Following Volkswagen Models: 1967–1979 Volkswagen models equipped with a 12-volt electrical system and using a 5-prong headlight dimmer relay (alternator-equipped applications). Features / Benefits: 5-prong headlight dimmer relay restores high/low beam switching 12V relay with 25/25A rating for dependable headlight operation Heavy-duty plastic housing with brass terminals OE replacement quality direct-fit design Helps prevent flickering and beam-switch failure from worn relays VW reference part number: 111941583 Sold individually, 1 required per vehicle Material / Finish: Heavy-duty plastic relay housing with brass terminals for secure electrical connection and long service life. Dimensions (optional): 1.3" x 1.5" x 1.4" (33mm x 35mm x 31mm) Because Details Matter Your Volkswagen’s headlights are only as reliable as the relay controlling them. A correct dimmer relay keeps high and low beams switching cleanly, improves safety after dark, and restores the factory feel every time you hit the dimmer.