Bully Dog / SCT 42214 Unlock Cable for 2013-2018 6.7L Cummins

Unlock the full tuning potential of your 2013-2018 Ram 2500/3500/4500/5500 with the 6.7L Cummins using the Bully Dog / SCT 42214 Unlock Cable. Starting in 2013, Cummins ECMs came factory-encrypted, blocking standard OBD-II communication from performance programmers. This specialized unlock cable is required to temporarily unlock the ECM so your Bully Dog GT Diesel or SCT BDX tuner can flash performance calibrations.

Key Benefits

• Enables full communication between your Bully Dog GT Diesel or SCT BDX tuner and the locked 6.7L Cummins ECM
• Required for loading custom tunes, power levels, and performance calibrations
• Simple, guided 4-step process controlled by the tuner’s on-screen instructions
• One-time use during the unlock procedure — once complete, the cable is no longer needed for ongoing tuning or monitoring (on compatible 2013-2017/2018 models)
• Durable construction designed for reliable connection during the unlock process

Fitment

• 2013–2018 Ram 2500, 3500, 4500, and 5500 equipped with the 6.7L Cummins diesel
• Compatible with Bully Dog GT Diesel, GT Platinum, and SCT BDX tuners

How It Works

1. Install your Bully Dog GT Diesel or SCT BDX tuner and follow the on-screen prompts.
2. When instructed, connect the 42214 Unlock Cable.
3. Complete the ECM unlock process (typically 10–15 minutes).
4. Disconnect the unlock cable and install your performance tune using the standard OBD-II harness.

Note: This cable is specifically for the unlock step on 2013–2018 6.7L Cummins applications. Later model years (2018+) often require different bypass cables that remain installed. Not for sale or use on California-registered vehicles.

Part Number: 42214 Brand: Bully Dog / SCT

Give your 6.7 Cummins the tuning access it needs — add the Bully Dog / SCT 42214 Unlock Cable to your order today.