4921479
Pressure Temperature Sensor
Cummins®

Introduction

The Cummins 4921479 Pressure Temperature Sensor is designed to monitor and report pressure and temperature conditions within a truck’s engine system. It provides accurate data to maintain optimal engine performance and efficiency, contributing to the vehicle’s reliability and longevity.

Basic Concepts of Pressure Temperature Sensors

A pressure temperature sensor measures pressure and temperature within a system, converting these physical parameters into electrical signals for the engine control unit (ECU) to interpret. This sensor is vital for monitoring and maintaining optimal conditions within a truck’s engine system, allowing the ECU to make necessary adjustments to engine parameters ¹.

Role of the 4921479 Pressure Temperature Sensor in Truck Operation

This Cummins part is integrated within the engine system to monitor engine oil pressure and temperature. It provides the ECU with accurate data to adjust parameters such as fuel injection timing and valve timing, ensuring smooth operation, improved fuel efficiency, and reduced wear on engine components ².

Key Features of the 4921479 Pressure Temperature Sensor

The Pressure Temperature Sensor is characterized by its robust design, high-quality materials resistant to corrosion and wear, and technological advancements that enhance accuracy and responsiveness. These features ensure the ECU receives precise data for optimal engine management ³.

Benefits of Using the 4921479 Pressure Temperature Sensor

Utilizing this sensor offers benefits such as improved engine performance, enhanced fuel efficiency, and increased reliability and durability of the truck’s engine system by providing accurate data that prevents engine damage due to suboptimal operating conditions.

Troubleshooting and Maintenance Tips

Regular maintenance is recommended to ensure the optimal performance and longevity of the 4921479 Pressure Temperature Sensor. This includes checking for wear or damage, ensuring secure connections, and verifying accurate readings. Troubleshooting may involve recalibrating the sensor or replacing it if faulty. Regular inspections and maintenance can prevent issues and ensure effective sensor function.

Cummins: A Brief Overview

Cummins Inc. is a well-established company in the automotive industry, known for its production of components for heavy-duty trucks. Founded in 1919, Cummins has a history of innovation and quality, consistently delivering reliable and high-performance products. The company’s commitment to advancing technology and improving efficiency is evident in its wide range of automotive components, including the 4921479 Pressure Temperature Sensor.

Compatibility with Cummins Engines

This part is designed to be compatible with a range of Cummins engines, playing a role in monitoring and regulating engine pressure and temperature for optimal performance and longevity.

Compatible Engines

• B5.9 GAS PLUS CM556
• C GAS PLUS CM556
• G5.9
• G5.9 CM558
• G8.3 CM558
• G855 CM558
• GTA8.3 CM558
• GTA855 CM558 (CM2358) G101
• ISB5.9G CM2180
• ISB6.7 G CM2180 B118
• ISL G CM2180
• ISX12 G CM2180 EJ
• KTA19GC CM558
• L GAS PLUS CM556
• QSL9 G CM558

Grouping of Compatible Engines

• CM556 Series:

  • B5.9 GAS PLUS CM556
  • C GAS PLUS CM556
  • L GAS PLUS CM556

• CM558 Series:

  • G5.9 CM558
  • G8.3 CM558
  • G855 CM558
  • GTA8.3 CM558
  • GTA855 CM558 (CM2358) G101
  • KTA19GC CM558
  • QSL9 G CM558

• CM2180 Series:

  • ISB5.9G CM2180
  • ISB6.7 G CM2180 B118
  • ISL G CM2180
  • ISX12 G CM2180 EJ

This sensor’s compatibility across these various engine models underscores its versatility and importance in maintaining engine efficiency and reliability.

Role of Part 4921479 Pressure Temperature Sensor in Engine Systems

This part is integral in modern engine systems, providing essential data that contributes to overall efficiency and performance.

Integration with the Air Fuel Mixer

The Pressure Temperature Sensor monitors conditions within the air fuel mixer, allowing for precise adjustments to the air-fuel ratio, ensuring optimal combustion, which is vital for engine performance and emissions control.

Coordination with the Assembly Kit

When installed as part of an assembly kit, the sensor works in tandem with other components to maintain system integrity, helping to calibrate various subsystems within the kit.

Communication with the Engine Control Module (ECM)

The sensor sends continuous data to the Engine Control Module (ECM), which uses this information to make real-time adjustments to engine parameters such as fuel injection timing and ignition timing.

Interaction with the Fuel Control System

In conjunction with the fuel control system, the Pressure Temperature Sensor ensures that fuel delivery is accurately modulated, particularly important under varying load conditions.

Synergy with the Fuel Control Module

The Fuel Control Module relies on data from the Pressure Temperature Sensor to fine-tune fuel delivery, adjusting the fuel injectors’ operation to ensure the correct quantity and timing of fuel delivery.

Complementing the Oil Pressure Sensor

While the Oil Pressure Sensor monitors engine oil pressure, the Pressure Temperature Sensor provides additional context by measuring temperature and pressure within the combustion chamber, helping to diagnose potential issues related to lubrication and cooling.

Conclusion

The Cummins 4921479 Pressure Temperature Sensor is a critical component in maintaining optimal engine performance and efficiency. Its accurate data collection and integration with various engine systems ensure smooth operation, improved fuel efficiency, and reduced wear on engine components. Regular maintenance and troubleshooting are essential to ensure the sensor’s longevity and effectiveness.