Cummins QSB 6.7L Temp Sensor 2013-2018: OEM 5698557

Temperature Monitoring for Cummins QSB 6.7L Engines (2013–2018)

What is it?
The Cummins QSB 6.7L Temperature Sensor (2013–2018), with OEM part number 5698557, is an emissions-related engine sensor designed for Cummins QSB 6.7-liter diesel engines manufactured between 2013 and 2018. This sensor measures exhaust or aftertreatment temperature at a specific location and relays accurate data to the engine control module (ECM), which uses that information to optimize combustion, emissions behavior, and aftertreatment processes.

Why choose this Temp Sensor?
This temperature sensor is built to Cummins’ original specifications for the QSB 6.7L platform, ensuring precise readings and dependable integration with the engine’s control logic and emissions system. When a temperature sensor weakens or fails, the ECM may receive incorrect temperature information, potentially leading to improper fuel timing, ineffective regeneration events, emissions warnings, or less efficient aftertreatment behavior. Installing the correct OEM-specified sensor helps maintain credible temperature feedback and supports coordinated engine and emissions system operation.

Key Benefits
✅ Engineered specifically for Cummins QSB 6.7L engines (2013–2018)
✅ Delivers accurate temperature data to the ECM
✅ Helps support efficient combustion control and aftertreatment timing
✅ Direct replacement — no modifications required
✅ Built to withstand high heat and heavy-duty operating conditions

Applications
This temperature sensor is suitable for medium- and heavy-duty vehicles and equipment powered by Cummins QSB 6.7L engines produced between 2013 and 2018. Typical uses include commercial trucks, agricultural machinery, construction units, generators, and other platforms where reliable temperature feedback is critical to emissions and engine control systems.

Installation Notes
Before servicing, allow the exhaust and aftertreatment system to cool fully. Locate the temperature sensor on the exhaust manifold, aftertreatment module, or designated thermowell, then disconnect its electrical connector. Remove the old sensor and inspect the mounting port and wiring harness for signs of contamination or damage. Install the replacement sensor and torque it to the correct specification. Reconnect the electrical harness, clear any stored fault codes, and confirm proper temperature readings with diagnostic tools.

Final Thoughts
If your Cummins QSB 6.7L-equipped machine is displaying temperature-related fault codes, unusual aftertreatment behavior, or inconsistent emissions system feedback, replacing a worn temperature sensor with the correct OEM unit can help restore accurate measurement and smoother coordinated system performance. The Cummins QSB 6.7L Temp Sensor (OEM 5698557) plays a key role in dependable engine and emissions monitoring.