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Speed Demon LED replacement bulbs can fit vehicle tail lights, brake lights, reverse lights, turn signals or side marker lights. This 3157 dual-contact, dual-function bulb has 21 LEDs that create a 360B0 viewing angle for better, allover light emission with reduced hot spots. Amber lights feature high-intensity LEDs that are ideal for high brightness LED applications. Tower-style design with a 16-mm wedge base for easy plug-and-play installation. The energy-efficient bulb operates within a wide 10-30V DC range and is designed to last in your vehicle up to 25 times longer than incandescent bulbs.
Available in White and Amber
Sold as a pair
1 Year Warranty
Looking for proven diesel performance parts that actually fit and perform? We stock hand-selected upgrades for Duramax, Cummins, and Powerstroke platforms — no guesswork, no junk.
From tuning and exhaust to suspension, engine internals, and recovery gear, everything we carry is backed by real-world testing and used by builders who know what works. If it’s on our site, it’s here for a reason.
