Peak Incandescent Parking/Stop/Tail/Turn Miniature Automotive Bulb, two-pack, model 3157NA/4157NA, is built to deliver dependable signaling in a standard 12.8-volt automotive system. This compact dual-filament bulb is designed to handle both parking/tail lighting and brake/turn signaling, making it a practical upgrade for vehicles that rely on traditional incandescent lighting.
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Dual-filament design supports separate circuits for parking/tail lights and brake/turn signals, ensuring the correct brightness and color for each function.
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Incandescent technology provides a familiar warm glow with immediate response, compatible with standard reflectors and lenses.
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Amber/Red light color enhances visibility and signaling clarity, helping other drivers anticipate your movements.
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12.8V operation matches common automotive electrical systems, delivering reliable performance across a broad range of vehicles.
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Two bulbs per package in carded packaging for convenient storage, replacement planning, and easy display.
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Part numbers 3157NA/4157NA indicate broad compatibility with the familiar socket configurations found in many cars, trucks, and SUVs.
Where to use: Ideal for parking lights, tail lights, brake lights, and turn signal circuits that rely on 3157 or 4157 style bulbs. If you’re restoring an older vehicle or outfitting a custom build that uses traditional incandescent signaling, Peak’s bulbs provide straightforward, reliable replacement without the complexity of modern LED alternatives.
Pro tips for best results: handle the bulbs by the glass to avoid transferring oils to the filament, and consider replacing both sides to maintain uniform brightness and color. Keep a spare pair on hand to minimize downtime on vehicles you depend on every day.
