SKU: 38040473572

Diode Dynamics 4257 HP24 LED Bulb - Cool - White Switchback (Single)

Sale price$37.76 Regular price$41.95
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Diode Dynamics 4257 HP24 LED Bulb - Cool - White Switchback (Single)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

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

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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 38040473572

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4.2 ★★★★★
Based on 19 reviews
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Product Reviews
E
Verified Purchase
E
Louisville, US
★★★★★ 5
18 months later
Style: H-shape, Size: 38 inch
Legs seem decently thick. They could be a little sturdier. The paint has stayed with no chips or flakes. Color has not faded. It sits at the perfect height for a desk. Screws and hardware do the job. No welds to speak of, everything screws together. I’ve used these for a year and a half as a school desk and has held up well. I took a sheet of project board with stain and polyurethane as my top. Works excellent
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
T
Verified Purchase
The Shark
Massapequa, US
★★★★★ 5
Gonna like these!
Style: Zig Zag, Size: 28 inch
Well done! Substantial legs that look great for a very reasonable price! Will absolutely purchase again for next project. Just can’t beat the price for the quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
C
Verified Purchase
Curtis W
Houston, US
★★★★★ 4
Very sturdy legs!
Style: Zig Zag, Size: 28 inch, Style: Zig Zag, Size: 28 inch
The legs are very well built and good looking, however, the screws included for installation are only 9/16" long which is not nearly enough for table legs of this size. I installed the legs on a 30" x 83" live edge oak tabletop that is full 2" thick. I purchased 1 1/4" screws for the install making the table very solid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2025
D
Verified Purchase
Dave M.
Houston, US
★★★★★ 5
Heavy duty. Looks nice.
Style: Zig Zag, Size: 28 inch
These are great. They are VERY heavy duty. I used them with a butcher block counter to make a desk. Worked perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
N
Verified Purchase
Naperville Jon
Phoenix, US
★★★★★ 3
Good and attractive with a few finish issues.
Style: Zig Zag, Size: 28 inch
These are attractive and functional and work well. Some of the welds were not as precise as I would have liked, and a few places (not conspicuous) are missing a little of the finish, but overall they do what they're supposed to do. I used them with a butcherblock counter top to create a desk for my office.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025

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