Kadiby 3157NA Amber Bulbs 20-Pack — 12V Dual-Filament 27/7W Halogen for Turn Signals

Kadiby 20-pack 3157NA amber bulbs are replacement halogen lamps for parking, turn signal and marker lights compatible with many 12V automotive sockets.

If you need a bulk set of amber 3157-style bulbs for routine service, restoration or fleet maintenance, this 20-pack from Kadiby delivers widely compatible, easy-to-install halogen replacements. They work in many vehicles that accept 3157NA / 3457NA / 3157A / 4157A cross-references and provide the traditional amber output for signaling and marker applications. These bulbs are intended as direct-fit replacements for sockets that expect a dual-filament 27/7W lamp and do not require electronic adapters.

Which vehicles and sockets will these 3157NA bulbs fit?

These bulbs fit many American and international models that use the 3157-style dual-filament lamp. Compatibility lists include numerous GM, Ford, Chrysler and other models across multiple years; use your owner manual or existing bulb code to confirm fit before purchase.

• Direct cross-references: 3157NA, 3457NA, 3157A, 4157A and equivalents like 3047A, 3057A, 4057A, 4114A.
• Common fits include Silverado, Tahoe, Suburban, F-series, Grand Cherokee, Expedition, and many sedans and minivans listed by model/year.
• Designed for standard 12V dual-filament sockets (27/7W) used in parking, turn signal and side marker circuits.

How do these halogen bulbs compare to LED replacements?

Halogen bulbs like these keep the factory electrical and optical behavior, so they typically install without error codes or load resistors. They produce warm amber light and the expected filament-based flash pattern, though they use more power than LEDs and have different longevity characteristics.

• No CANbus adapters required in most applications—fits like-for-like in halogen circuits.
• Traditional filament brightness and color for legal signaling and compliant appearance.
• Greater initial cost-effectiveness for bulk replacement versus LED retrofits.

What are the practical specs and installation tips?

Each lamp is a 12-volt dual-filament 27/7W halogen amber bulb sold in a pack of 20 for multiple replacements. Install by accessing the lamp housing, removing the socket, pulling out the old bulb and pressing the new 3157-style bulb into the same socket—no wiring changes required for compatible vehicles.

• Rated for standard 12V systems; each bulb contains two filaments for tail/stop or parking/turn functions.
• Amber lens/color built into the bulb for consistent turn-signal appearance.
• Handle bulbs with a clean cloth or gloves to avoid skin oils on glass, which can shorten life.

Who is this for? Technicians, fleet managers, restoration hobbyists and car owners who maintain classic or current vehicles that require 3157-style amber signaling bulbs will find this Kadiby 20-pack convenient and economical. If you prefer plug-and-play halogen replacements without modifying vehicle electronics, need to replenish multiple lamps at once, or are restoring a vehicle to factory appearance, this set is designed for those use cases. Always double-check your vehicle's bulb code and socket type before ordering to ensure compatibility.