FITMENT
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2007-2009 Dodge Ram 2500 6.7L Cummins Diesel
- 2007-2009 Dodge Ram 3500 6.7L Cummins Diesel
- 2007-2009 Dodge Ram 4500 6.7L Cummins Diesel
- 2007-2009 Dodge Ram 5500 6.7L Cummins Diesel
Interchange Part Numbers:
DESCRIPTION
Product Overview
- Engineered for early-generation Ram 6.7L Cummins emissions platforms, the TruckTok 68002443AB EGT Sensor features a specialized thermocouple calibrated specifically for pre-DEF ECM response strategies. It delivers high-accuracy voltage feedback tailored to early DPF-only exhaust architectures, maintaining precise closed-loop monitoring without signal drift.
- Designed as a direct OEM replacement for 68002443AB and 68002443AA, this heavy-duty sensor prevents the signal incompatibility and temperature plausibility fault codes caused by installing later-generation sensors. It restores clean ECM communication, optimizes DPF regeneration timing, and protects against unexpected engine power derates.
Key Features
- Thermocouple voltage output is mapped specifically to early Cummins emissions control logic, matching its precise signal sampling rates and voltage plausibility thresholds to eliminate false temperature fault codes.
- Calibrated for non-SCR exhaust architectures where DPF burn cycles rely entirely on primary EGT feedback. High-precision thermal tracking ensures proper regen initiation without under-burning or thermal overshooting.
- Reinforced internal thermocouple junction engineered to resist the persistent harmonic resonance of the 6.7L Cummins, preventing thermal element open-circuits and signal loss under heavy highway load.
FAQ
Q: Does this sensor fit a 5.9L Cummins truck?
A: No. This sensor is engineered exclusively for 6.7L Cummins platforms with factory emissions controls. The earlier 5.9L Cummins engines do not utilize exhaust gas temperature sensors in this positions or emissions architecture.
Q: How can I tell if the sensor is bad versus the ECM having an issue?
A: The most reliable method is swapping the suspect sensor with a known-functional unit from another EGT position on the same truck. Clear the diagnostic fault codes and re-scan. If the error code migrates to the new location, the sensor has an internal circuit fault; if the code remains at the original position, the issue lies within the harness or ECM logic.
Q: The fault code only triggers in cold weather. Is the sensor failing?
A: Yes, this is a frequent sign of a failing thermal junction. Low ambient temperatures cause internal metallic components to contract, which can create a temporary open-circuit condition inside a degraded sensor. Replacing the sensor restores continuous electrical conductivity across all temperature ranges.
Q: What anti-seize compound should be used when installing this replacement?
A: A high-temperature, nickel-based anti-seize compound is recommended. Because early 6.7L exhaust systems experience severe heat cycles, applying nickel anti-seize to the sensor threads prevents thread galling and ensures easier removal during future maintenance.
Q: Need a different EGT position for your early Ram?
A: The early 6.7L uses multiple sensor positions. We also carry the 5149085AC (2007–2012) and 68206021AA (2010–2021). Match the part number stamped on your old sensor to confirm.
