41mm Festoon LED Bulbs

41mm size bulbs are usually found in the map, dome, and trunk lights on newer Ford, GMC, Cadillac, and Chevrolet vehicles. Diode Dynamics 41mm LED upgrade bulbs are 100% plug and play, and provide a far brighter, more modern appearance. Installation takes only a few minutes using basic hand tools!

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Built with the highest quality components, our LED replacement bulbs provide years of reliable use without flickering or failure. 41mm cross-reference: 578, 4210, 6451, DE3425, DE3423, DE3425LL, DE3423LL, 211, 212, 212-2, 214-2, 6413, 6429