Fit For Ford F-150 2015–2023 Front Turn Signal LED Bulbs

Lasfit T3 Series Front Turn Signal LED Bulbs for Ford F-150 2015–2023 Upgrade compatible factory front turn signal bulbs with Lasfit T3 Series LED bulbs for Ford F-150 2015–2023. Built-in CANbus decoding helps reduce hyper flash and dashboard errors without external resistors, while vehicle-specific 7443 and 4257 options provide the correct lighting function for each model year. 2000LM Per Bulb High-output front signaling 24W Per Bulb Built-in CANbus decoding 20 LEDs 3030 Chips Bright, visible output Plug & Play Easy Upgrade No external resistor required Choose the Correct Front Turn Signal Bulbs Select your model year to get the correct T3 Series front turn signal bulb. 2015–2018 7443 Switchback LED SKU: T3-7443D Amber Turn Signal + White Parking Light 7443 / 7443NA / 7444 / 7444NA / 992 2019–2020 4257 Switchback LED SKU: T3-4257D Amber Turn Signal + White Parking Light 4257 / 4257NA / 4257NALL / 4257NAK / 4257A 2021–2023 4257 Amber LED SKU: T3-4257A Bright Amber 4257 / 4257NA / 4257NALL / 4257NAK / 4257A Front Turn Signal Fitment for Ford F-150 Check your model year and trim before ordering. Model Year Fit SKU Light Output Does Not Fit 2015–2018 Fit XL / STX / XLT / Lariat XL without factory fog lights T3-7443D Amber + White Switchback Does Not Fit King Ranch / Platinum / Limited 2017–2018 Raptor 2019–2020 Fit XL / STX / XLT / Lariat XL without factory fog lights T3-4257D Amber + White Switchback Does Not Fit King Ranch / Platinum / Limited / Raptor 2021–2023 Fit XL / STX / XLT / XLT Package / Tremor / Lariat / Raptor T3-4257A Bright Amber Does Not Fit King Ranch / Platinum / Limited / Tremor Package Fitment Note: Models listed under “Does Not Fit” use factory LED front turn signal lighting and do not use a replaceable front turn signal bulb. Why Upgrade to T3 Series? 01 Built-In CANbus Decoder A ceramic resistor is integrated directly into the bulb to help eliminate hyper flash and dashboard warning errors without requiring separate external load resistors. 02 Up to 2000LM Per Bulb Each T3 bulb uses 20 high-output 3030 SMD LED chips and delivers up to 2000 lumens with a maximum 24W output for more noticeable front signaling. 03 Quick Plug-and-Play Installation Compact dimensions close to the factory halogen bulb make the upgrade straightforward without external resistors, special tools or complicated rewiring. 04 Intelligent Cooling System A full aluminum body, eight heat-dissipation openings and a smart temperature-control chip help manage heat and maintain stable performance during regular use. Switchback vs. Amber Front Turn Signal The lighting function changes by model year, so select the option designed for your truck rather than choosing by bulb size alone. 2015–2020 — Switchback T3-7443D and T3-4257D provide bright amber output for the front turn signal and 6000K white output for the parking light function on compatible dual-function factory sockets. 2021–2023 — Amber T3-4257A provides bright amber output for the compatible front turn signal position. Specifications 2015–2018 Ford F-150 SKU T3-7443D Bulb Size 7443 / 7443NA / 7444 / 7444NA / 992 Light Output Amber Turn Signal + White Parking Light Function Switchback 2019–2020 Ford F-150 SKU T3-4257D Bulb Size 4257 / 4257NA / 4257NALL / 4257NAK / 4257A Light Output Amber Turn Signal + White Parking Light Function Switchback 2021–2023 Ford F-150 SKU T3-4257A Bulb Size 4257 / 4257NA / 4257NALL / 4257NAK / 4257A Light Output Bright Amber Function Front Turn Signal Shared Specifications Product Series Lasfit T3 Series Installation Position Front Turn Signal Light Wattage Up to 24W per bulb Lumens Up to 2000LM per bulb LED Chips 20 × 3030 High-Intensity LED Chips CANbus Built-In CANbus Decoder Package 2 LED Bulbs / Pack