Factory Bulb Repl.

FeaturesTrue replacement for factory incandescent 4257-size front turn signal bulb.Custom-molded base connector for correct fitment.Adds cool white running light along with amber turn signal.High-power Samsung LEDs arranged around the bulb.No yellow appearance when switched off.Non-polar and CK compatible.Plug and play simple installation.OverviewUpgrade. Add dual-color functionality and a modern appearance to your front turn signals with the 4257 HP24 turn signal bulb. Populated with sixteen amber chips and eight white chips this bulb lights up white when your headlights are turned on and flashes amber when the turn signals are activated. Housed in an aluminum casing for maximum heatsinking properties the HP24 will last for years to come. Best of all installation only takes minutes - simply take out your factory bulb and the HP24 will fit snugly in the socket.The 4257 HP24 Switchback bulb features a custom-molded base connector making it a true replacement for factory incandescent 4257-size front turn signal bulbs. Unlike a 3157 bulb that includes tabs on either side of the bulb a 4257 bulb does not. The 4257 HP24 Switchback bulb is compatible with Ford vehicles using a dual-filament 4257-size front turn signal bulb with a clear reflector lens.Brightness. At 410 lumens the HP24 will provide about double the total light output compared to your factory bulb. All Diode Dynamics LED lighting is rated with accurate measured lumen figures not calculations or guesses. We test the true output in-house and provide you the real numbers to compare.Reliability. Unlike other bulbs on the market this bulb is built with constant-current circuitry along with transient suppression meaning this bulb will last for years to come.

Additional Information

Add dual-color functionality and a modern appearance to your front turn signals with the 4257 HP24 turn signal bulb. This bulb lights up white when your headlights are turned on and flashes amber when the turn signals are activated.

Part Type

Multi-Purpose Light Bulb

Product Overview

Features True replacement for factory incandescent 4257-size front turn signal bulb. Custom-molded base connector for correct fitment. Adds cool white running light, along with amber turn signal. High-power Samsung LEDs arranged around the bulb. No yellow appearance when switched off. Non-polar and CK compatible. Plug and play, simple installation. Overview Upgrade. Add dual-color functionality and a modern appearance to your front turn signals with the 4257 HP24 turn signal bulb. Populated with sixteen amber chips and eight white chips, this bulb lights up white when your headlights are turned on, and flashes amber when the turn signals are activated. Housed in an aluminum casing for maximum heatsinking properties, the HP24 will last for years to come. Best of all, installation only takes minutes - simply take out your factory bulb and the HP24 will fit snugly in the socket. The 4257 HP24 Switchback bulb features a custom-molded base connector, making it a true replacement for factory incandescent 4257-size front turn signal bulbs. Unlike a 3157 bulb that includes tabs on either side of the bulb, a 4257 bulb does not. The 4257 HP24 Switchback bulb is compatible with Ford vehicles using a dual-filament 4257-size front turn signal bulb with a clear reflector lens. Brightness. At 410 lumens, the HP24 will provide about double the total light output compared to your factory bulb. All Diode Dynamics LED lighting is rated with accurate, measured lumen figures, not calculations or guesses. We test the true output in-house, and provide you the real numbers to compare. Reliability. Unlike other bulbs on the market, this bulb is built with constant-current circuitry, along with transient suppression, meaning this bulb will last for years to come.

• Direct replacement for your factory bulb
• Increased output with LED Appearance
• Molded construction with sturdy double terminals
• Plug and play simple installation

Note for Australian & European Markets

This product is designed and tested for the US domestic market, and certain features may not be compatible with or compliant to regulations in other countries. For example, some lighting products may need modification to meet transportation standards or may not comply with local laws. References to SAE and DOT refer to US standards & requirements and may not be directly comparable to Australian requirements. For vehicles outside North America, lights may require modification by an auto electrician. Wiring, lamp colour, beam pattern, connectors, or relays may differ from those used in some North American models. Please review all images and descriptions carefully to ensure this product suits your requirements. Returns are not accepted for special-order products.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Light Bulbs, HP24 Switchback, 4257, Cool White, Each