Standard Ignition S2678 Turn Signal Light Socket - Front

Turn Signal Socket for Ford Super Duty and F-150

Standard Ignition S2678 is a front turn signal light socket built for select Ford trucks and pickups. It features a female oval connector, a 3-blade male terminal layout, and a 2 1/4-inch housing and harness length for a direct electrical connection at the lamp assembly.

Key Features

• Turn signal light socket for front lighting circuits
• Female connector with oval shape for a secure plug-in fit
• 3-terminal blade design for electrical contact
• 2 1/4-inch housing length and 2 1/4-inch harness length
• Standard Ignition S2678 replacement socket
• Cross-reference: JL3Z13411A, LS2978

Detailed Description

Standard Ignition S2678 is an electrical socket used in the front turn signal lamp assembly on select Ford applications. It is listed for 2018-2024 Ford F-250 Super Duty front, 2018-2024 Ford F-350 Super Duty front, and 2019-2020 Ford F-150 front. The socket uses a female connector with an oval housing, three male blade terminals, and a compact 2 1/4-inch body and harness length to match the original electrical connection point.

For buyers searching for a Ford F-250 Super Duty front turn signal light socket, Ford F-350 Super Duty front socket, or Ford F-150 front electrical socket, S2678 provides the specified connector style and terminal layout for the listed vehicles. The part number S2678 is also useful when matching an OE-style replacement by interchange reference.

What It Helps Fix

• Intermittent or failed front turn signal operation
• Damaged socket terminals or connector housing
• Corrosion at the lamp socket connection
• Loose electrical contact at the front signal lamp
• Replacement needs after heat-related socket wear

Installation Notes and Tips

Verify the connector shape, terminal count, and housing length against the original socket before installation. Confirm front-position application on the vehicle and inspect the lamp connector, terminals, and bulb contacts for corrosion or heat damage before reassembly. Standard Ignition S2678 should be matched to the listed Ford fitment by year, model, and front position.

Quality Assurance

Standard Ignition is a recognized aftermarket source for electrical replacement parts, and S2678 is cataloged with OE-style interchange references for the listed Ford applications.