Diode Dynamics 4257 HP24 LED Bulb - Cool - White Switchback (Single)
Why this price?
$39.95 is MSRP, the lowest price Diode Dynamics lets us list it at. Additionally, Pro members get $4.39 back on this part.
$39.95 − $4.39 = $35.56
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to Diode Dynamics, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with Diode Dynamics, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
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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.
Installation Instructions- Molded construction with sturdy double terminals
- Direct replacement for your factory bulb
- Increased output with LED Appearance
- Plug and play simple installation
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2018 | Ford | F-150 | King Ranch |
| 2015-2018 | Ford | F-150 | Lariat |
| 2016-2018 | Ford | F-150 | Limited |
| 2015-2018 | Ford | F-150 | Platinum |
| 2018 | Ford | F-150 | Police Responder |
| 2017-2018 | Ford | F-150 | Raptor |
| 2016-2018 | Ford | F-150 | SSV |
| 2015-2018 | Ford | F-150 | XL |
| 2015-2018 | Ford | F-150 | XLT |
| 2009-2010 | Ford | F-250 Super Duty | Cabela's |
| 2008-2009 | Ford | F-250 Super Duty | FX4 |
| 2008-2010 | Ford | F-250 Super Duty | Harley-Davidson Edition |
| 2008-2017 | Ford | F-250 Super Duty | King Ranch |
| 2008-2017 | Ford | F-250 Super Duty | Lariat |
| 2013-2017 | Ford | F-250 Super Duty | Platinum |
| 2008-2017 | Ford | F-250 Super Duty | XL |
| 2008-2017 | Ford | F-250 Super Duty | XLT |
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