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Call or Text (352) 722-5295Digital monitors on the 2019-2024 RAM 6.7L Cummins
From the factory, the fifth-generation Ram HD gives you a 7-inch color driver display in the cluster, and from 2023 an available 12-inch frameless digital cluster. An add-on monitor works differently. It plugs into the OBD-II port and reads the data the engine and transmission are already reporting, including boost, exhaust gas temperature, transmission temperature, and DPF soot and regen status. You get those numbers on a screen you mount where you can see it.
There is a maintenance reason to watch, too. The 6.7L Cummins cleans its DPF with in-cylinder post-injection, and that extra fuel can thin the engine oil. Long idle time and short, cold trips make it worse. A monitor that shows regen status tells you when the truck is in a regen instead of leaving you to guess.
What goes wrong and why
Monitors on this truck don't have a known hardware failure pattern. The real-world snag is the Security Gateway Module that FCA put on 2018 and newer trucks. It allows normal OBD-II reads, so a gauge monitor connects and shows data the way it should. What it stops are write functions: changing tire size, setting up remote start, or flashing the computer. If a device connects but won't do one of those jobs, the gateway is what's blocking it.
Factory screen vs. an add-on monitor
If the truck mostly runs empty around town, the factory display may cover you. An add-on monitor earns its spot when you tow, when you want a screen dedicated to the readings you care about, or when you want an input from an extra sensor. The Edge Insight CTS3 sold here is a monitor only. It reads; it does not tune the engine or change the calibration. That also means the gateway doesn't get in its way.
What we carry
This collection is built around Edge Products hardware:
- Edge Insight CTS3: a universal touchscreen monitor that works on any OBD-II vehicle from 1996 on.
- Edge 38603 A-Pillar Display Mount: made for the 2019 and newer Ram 2500/3500, so the monitor gets a fixed home on the A-pillar.
- Edge EAS EGT Kit (Daily Driver/Tow Kit): an exhaust gas temperature sensor kit that adds an external sensor to an Edge monitor.
- Edge EAS Pressure Sensor (0-100 PSI): a pressure sensor input for the same monitors.
Fitment notes
The 38603 mount fits 2019-2026 Ram 2500 and 3500 pickups, but not trucks equipped with the factory Head-Up Display. Pillar mounts are generation-specific, so don't count on a mount from an older Ram carrying over to this body. The CTS3 itself is universal OBD-II, so it can move with you to your next truck. The Edge sensor kits are listed for Edge CS2, CTS2 and CTS3 monitors; if you run something else, check with us first. Not sure whether your truck has the Head-Up Display? Verify by VIN before ordering the mount.
Frequently asked questions
Will the Security Gateway on my 2019-2024 Ram block a gauge monitor?
Not for reading data. The gateway allows normal OBD-II reads, so a read-only monitor like the Edge Insight CTS3 connects and displays engine data. What it blocks are write commands, such as tire-size changes, remote start setup and flashing.
What can the Insight CTS3 show on a 6.7L Cummins?
It reads the factory data the truck already reports over OBD-II, including boost, exhaust gas temperature, transmission temperature, and DPF soot and regen status. If you want a reading from a sensor you add yourself, Edge's EGT and pressure sensor kits plug into it.
Does the CTS3 tune my truck?
No. The Insight CTS3 on this page is a monitoring tool only. It watches the engine and transmission and does not change the calibration. Nothing in this collection rewrites the engine computer.
Will the A-pillar mount fit a Ram with the Head-Up Display?
No. Edge's 38603 mount fits the 2019-2026 Ram 2500 and 3500, but not trucks with the factory Head-Up Display. Check your window sticker or build sheet, or give us your VIN and we'll confirm before you order.
Do I need the EGT kit if the monitor already reads EGT?
Not necessarily. The CTS3 already reads the factory exhaust gas temperature data through OBD-II. The EAS EGT kit adds Edge's own external sensor to the monitor, and Edge packages it as a daily driver and tow kit. Tell us how you use the truck and we'll help you decide whether it adds anything for you.
Not sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.