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Crankcase pressure sensors suitable for Cummins ISB, ISC 6.7L and 8.9L engines 4984575 5462277 495440
Product Name：Cummins Crankcase Pressure Sensor (Part No.: 4984575 / 5462277 / 495440)
Applicable Equipment：
- Engines: Cummins ISB 6.7L, ISC 8.9L series diesel engines
- Vehicles/Machinery: Heavy-duty trucks, buses, construction machinery, generator sets, and other equipment powered by the above engines
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Product Description
Core Parameters：
- Part Number: 4984575 (Interchangeable: 5462277, 495440)
- Type: Crankcase Pressure Sensor
- Structure & Material: High-strength engineering plastic housing + high-precision piezoresistive sensing core + green O-ring seal + waterproof electrical connector
- Function: Real-time monitoring of crankcase internal pressure, converting pressure signals into electrical signals for the engine ECU
Function & Application：
- Pressure Monitoring: Accurately captures crankcase pressure data, providing critical operating parameters to the ECU for monitoring the oil separator and ventilation system status.
- Fault Diagnosis: Sends a signal to the ECU when abnormal crankcase pressure (too high or too low) is detected, triggering fault codes (e.g., P0524, P0525) to alert the operator for timely maintenance, preventing oil seal leaks or piston ring damage.
- Emission Control: Works with the Positive Crankcase Ventilation (PCV) system to optimize oil-gas separation efficiency, reduce unburned hydrocarbon emissions, and meet environmental regulations.
- Durability & Reliability: O-ring seal and waterproof connector adapt to the harsh engine bay environment (high temperature, oil contamination, vibration), ensuring stable signal transmission.
- OEM Compatibility: Precision manufactured to Cummins original standards, perfectly matching interface dimensions, mounting location, and electrical pinout for direct replacement of 4984575, 5462277, or 495440 sensors.
Application Scenario：
Suitable for maintenance and replacement of the emission and ventilation systems in Cummins ISB 6.7L, ISC 8.9L engines, resolving issues such as abnormal crankcase pressure, oil seal leaks, and fault codes. It is a core sensor component to ensure efficient engine operation and emission compliance.
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