Replace a worn or damaged front turn signal socket without replacing the whole harness, using the Standard Ignition Turn Signal Light Socket S2678. The manufacturer also describes it as a multi-function socket. It is a direct replacement for the 2018-2024 Ford F-250 Super Duty, 2018-2024 Ford F-350 Super Duty, 2019-2020 Ford F-150, 2022-2024 Ford Maverick, and 2023 Ford F-600 Super Duty.
This socket holds the front turn signal bulb and links it to the vehicle's wiring so the bulb receives power. Standard Ignition offers thousands of pigtails and sockets for nearly every electrical job, and this one is built around the following features:
- 100% tested: All Standard Ignition electrical connectors are tested for proper mechanical and electrical fit, form, and function.
- Connector-only repair: As a direct replacement connector, it lets you replace only the damaged connector and skip a full harness, for a cost-effective repair.
- Polyamide housing: The housing is made from polyamide resins. Together, the materials are intended to give the connector a long life in harsh environments.
- Terminals: The terminals are made with high-grade materials such as copper alloy, brass, and phosphor bronze.
Signs this socket may need replacing include a front turn signal that flickers or will not light with a known-good bulb, a bulb that sits loosely, or a socket that is corroded, cracked, or heat-damaged. If a failed socket is the cause, S2678 replaces it. See the "Vehicles it fits" section for engine-specific details.
Interchange: PT2680 · LS2978 · JL3Z13411A
This part cross-references / interchanges with the following part numbers:
PT2680, LS2978, JL3Z13411A
Frequently Asked Questions
What vehicles does the Standard Ignition S2678 fit?
It is listed for the 2018-2024 Ford F-250 Super Duty and F-350 Super Duty, 2019-2020 Ford F-150, 2022-2024 Ford Maverick, and 2023 Ford F-600 Super Duty. See the "Vehicles it fits" section for engine details.
Where is this socket located on the vehicle?
It is cataloged as a front turn signal light socket for the listed applications. The manufacturer also describes it as a multi-function socket.
What are signs the turn signal socket may need replacing?
Signs can include a turn signal that flickers or stays out with a good bulb, a loose bulb, or a corroded, cracked, or heat-damaged socket. Check the bulb and wiring first to confirm the cause.
Do I need to replace the whole wiring harness?
Not if only the socket is damaged. S2678 is a direct replacement connector, so you can replace just the damaged connector instead of a full harness for a more cost-effective repair.
What is the socket made of?
The housing is made from polyamide resins. The terminals are made with materials such as copper alloy, brass, and phosphor bronze.
