Cummins Temperature Sensors in Engine Systems

Temperature sensors are used throughout Cummins engines to monitor key operating conditions. Accurate temperature data allows the ECM to adjust fueling, timing, and emissions systems in real time.

Common Cummins temperature sensor functions include:

• Monitoring engine coolant temperature
• Measuring intake air temperature
• Tracking exhaust gas temperatures (EGT)
• Supporting turbocharger and aftertreatment performance

These sensors play a critical role in protecting engine components and maintaining optimal efficiency.

Common Cummins Engine Applications

Cummins temperature sensors are used across a wide range of diesel engines in on-road and off-road applications.

• Cummins ISX CM2250 and CM2350 engines
• Cummins X15 Efficiency and Performance Series
• Cummins ISB 6.7L diesel engines
• Kenworth, Peterbilt, Freightliner, and International trucks

Sensor types and locations vary depending on engine platform and emissions configuration.

Role in Aftertreatment Systems

Temperature sensors are essential for proper operation of DPF and SCR systems on modern Cummins engines.

• Monitor exhaust temperatures before and after the DPF
• Control active and passive regeneration cycles
• Protect components from excessive heat
• Ensure SCR system efficiency and DEF dosing accuracy

Incorrect readings can lead to regeneration issues, fault codes, or engine derates.

Common Failure Symptoms

• Check engine or temperature-related fault codes
• Incorrect temperature readings
• Failed or incomplete DPF regeneration
• Engine derate conditions
• Poor fuel efficiency or performance issues

Failures may result from sensor wear, contamination, wiring issues, or internal electrical faults.

Installation & System Considerations

When replacing a temperature sensor, proper installation and system inspection are important.

• Verify correct sensor type and location
• Inspect wiring harness and connectors
• Check for coolant or exhaust leaks
• Ensure proper sealing and torque during installation

Correct installation helps ensure accurate readings and long-term reliability.

Verify Fitment Before You Buy

Temperature sensors vary by engine model, CPL, and system configuration. To confirm compatibility before ordering, provide:

• Engine serial number (preferred)
• CPL number
• Truck or equipment model
• Sensor location (coolant, EGT, intake air, etc.)
• Current sensor part number

This ensures the correct Cummins temperature sensor is selected for your application.

Why Buy Cummins Temperature Sensors from Advanced Truck Parts?

• Fitment verification before purchase
• Reliable engine and emissions components
• Fast shipping to minimize downtime
• Support for fleets and technicians
• Competitive pricing on sensor components