The performance and longevity of a diesel engine depend heavily on accurate environmental and system monitoring — and for ISX15 engines from 2010 through 2018, the Cummins ISX15 Sensor PRS Temperature (OEM 4921479) plays a crucial role. Designed to provide precise temperature readings, this sensor helps the engine control system adjust fuel delivery, combustion timing, coolant regulation, and emissions management under varying loads and conditions. Installing the correct OEM sensor ensures your engine operates safely, efficiently, and reliably.
This temperature sensor offers several important benefits for engine operation:
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Accurate Temperature Readings – Monitors vital temperature parameters (coolant, ambient, or system-specific) and sends precise data to the control unit for necessary adjustments.
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Protects Engine Components from Heat Damage – Reliable temperature feedback helps prevent overheating, minimizing risk of thermal stress or damage to internal engine parts.
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Optimizes Combustion and Fuel Efficiency – With correct temperature input, the engine can fine-tune fuel injection and timing, improving combustion efficiency and reducing fuel consumption.
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OEM-Grade Fit and Durability – As OEM 4921479, this sensor meets original manufacturer specifications, ensuring correct installation, dependable performance, and long-term service under tough conditions.
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Reduces Risk of Faults and Misdiagnosis – A properly functioning sensor helps avoid false temperature warnings or erratic error codes, simplifying diagnostics and maintenance.
Replacing an old or faulty temperature sensor is essential for sustaining the health and performance of your diesel engine. The Cummins ISX15 Sensor PRS Temperature (OEM 4921479) delivers the precision and OEM-standard build quality necessary for proper temperature management, component protection, and efficient engine operation. For customers seeking a dependable, high-quality replacement, Tamerx offers this sensor as a trusted solution to keep your engine running smoothly and reliably.





































































































































































































