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Diode Dynamics

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

SKU: DIODD0462P

FeaturesTrue replacement for factory incandescent 4257-size front turn signal bulb.Custom-molded ...Read more

Price:
$79.95
790 ENTRIES10X
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

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Product Details

Product Description
Part Numbers
Sizing & Fit
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.
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
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.
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

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