FITMENT
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2010-2021 Dodge Ram 2500, 3500, 4500, 5500 with 6.7L Diesel engine.
Interchange Part Numbers:
DESCRIPTION
Product Overview
- Calibrated to high-volume OEM standards, the TruckTok 68206021AA EGT Sensor provides ultra-consistent thermal response across Cummins 6.7L emissions architectures. Directly cross-referencing Cummins commercial catalog number 2872858, it incorporates heavy-duty thermocouple element specifications engineered for both light-duty pickup and commercial-grade exhaust systems.
- Built for strict batch-level accuracy and long-term voltage stability, this sensor delivers real-time exhaust temperature feedback to the engine controller. As a direct-fit replacement, it resolves persistent signal drift, restores proper SCR closed-loop efficiency, clears diagnostic fault codes, and protects against automatic engine power derates.
Key Features
- Precision-tuned thermocouple response seamlessly aligns with the Cummins ECM voltage tables across the complete temperature range—delivering stable, lag-free signal translation from cold starts to sustained maximum towing loads.
- Produced under high-scale commercial manufacturing controls to guarantee exceptionally tight batch-to-batch sensor tolerance, ensuring identical sensor-to-sensor accuracy and reliable long-term resistance stability.
- Engineered tip geometry minimizes localized exhaust turbulence at the sensing point. Preventing backpressure micro-fluctuations ensures clean, noise-free thermal readings to the ECM even under high-RPM, full-load operation.
FAQ
Q: Is this sensor suitable for heavy-duty towing and commercial chassis applications?
A: Yes. Engineered to cross-reference both Mopar and Cummins commercial catalogs, this sensor is built to handle the intense thermal cycling and continuous exhaust loads of 2500 through 5500 models without signal drift or premature thermal failure.
Q: What’s the 2872858 interchange number on the Cummins side?
A: 2872858 is the commercial catalog part number assigned by Cummins for this identical EGT specification. Whether referenced under Mopar or Cummins commercial listings, the thermal response curve and signal parameters remain completely identical across both passenger and commercial applications.
Q: Can a bad sensor at this position cause DEF consumption to spike?
A: Yes. If a degraded sensor drifts and reads higher than the actual exhaust temperature, the ECM incorrectly assumes the exhaust is hot enough for maximum dosing, causing it to over-inject DEF fluid. Replacing a drifted sensor restores accurate temperature tracking and normalizes DEF consumption.
Q: Can I use the same sensor part number for both the 2500 and 5500?
A: Yes. Ram utilizes the same emissions control logic and EGT sensor specifications at this physical position across the entire 2500, 3500, 4500, and 5500 lineup, ensuring complete cross-chassis compatibility.
Q: Looking for other Ram Cummins EGT sensors?
A: Your 6.7L Cummins runs multiple EGT sensors. We also carry the 5149085AC (2007–2012), 68002443AB (2007–2009), 68085774AB (2013–2018), and the 2019+ positions. Grab the one that matches your old sensor’s part number.
