Ford Super Duty C4003 Inline T-Adapter for Exterior Illumination (2020-2022)

$71.99 $79.99 Save $8

SKU: 6271

In Stock!


If you need a seamless way to connect exterior LED lighting to your 2020-2022 Super Duty, this adapter makes it simple. The C4003 Inline Connector is found beneath the rear bumper of all 2020+ Ford Super Duty’s.

Features and Benefits:

  • Allows you to connect lighting accessories to the +12v exterior illumination circuit (CLN06 – AKA ‘Kerb Illumination’) and ground circuit (GD477) seamlessly. No need to cut or splice into your factory wiring!
  • The Starkey T-Adapter utilizes genuine OEM connectors used by Ford on the C4003 Inline connection.
  • Each T-Adapter has (2) Deutsch DT-Series Plug Outputs and (1) Quick-Connect Output.
  • Once your lighting accessory is connected, it will come ON automatically when the truck is unlocked with the key FOB, and will fade to OFF when the truck is started or doors are locked. This circuit can also be controlled by pressing the cargo lamp button located on the headlight switch.
  • Assembled in the USA!
        • 2020-2022 Ford F250, F350, F450*

        *Your truck must be pre-wired for the T-Adapter to provide power to your accessory. To determine if your truck is pre-wired, check the C4003 inline connector shown in our instruction manual and YouTube installation video. The following wire should be present:
        2020-2022 = Pin #7 (White with Brown Stripe)

        If this wire is not present, you will also need Starkey #4572 Power Extension Wiring

        What’s Included:

        • Plug-N-Play T-Adapter

        Technical Specifications:

        • Max Continuous Amp Draw: 5
        • For 12v Accessories


              • Installation difficulty = Very Low
              • Installation time = 5 Minutes

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