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Cummins  |  SKU: 4358994

4358994 | Genuine Cummins® Differential Pressure Sensor For EPA17 15L ISX/QSX

$18900
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Description:
A differential pressure sensor 4358994 measures the difference in pressure between two points—not absolute pressure. 4358994 is used to monitor flow, detect clogs, or evaluate system performance across filters, pipes, tanks, or exhaust systems. Differential Pressure Sensor For EPA17 15L ISX/QSX,  work condition, used take-off Kenworth T880 2024

Part Number: 4358994
Condition: Used In Good Condition
Manufacture/Brand: Cummins

Fits 4358994 For Kenworth, Trucks Equipped With Cummins Engines
Engines: B4.5 CM2350 B129B, B4.5 CM2350 B146C, B4.5 CM2350 B147B, B4.5 CM2620 B158B, B4.5 CM2620 B180B, B6.7 CM2350 B121B, B6.7 CM2350 B135B, B6.7 CM2350 B148B, B6.7 CM2450 B155B, B6.7 CM2670 B167B, D4.0 CM2620 D103B, D4.5 CM2620 D104B, F3.8 CM2350 F132B, F3.8 CM2620 F137B, F4.5 CM2620 F139B, ISX12 G CM2180 EJ, ISX15 CM2350 X101, L9 CM2450 L126B, L9 CM2670 L128B, X12 CM2350 X119B, X12 CM2450 X137B, X13 CM2670 

Purpose of using 4358994:

Purpose What It Does
1. Detect blockages or clogs If pressure is high on one side and low on the other, it signals a restriction (like a clogged filter).
2. Monitor filter health Used across air, fuel, oil, or exhaust filters to detect when they need cleaning or replacement.
3. Ensure proper flow Confirms air, fuel, or exhaust gases are flowing as expected through a system.
4. Control system behavior Sends data to an ECM or control unit that can trigger alarms, adjust valves, or initiate cleaning cycles.


Signs of a Bad Differential Pressure Sensor 4358994

Symptom What It Means
1. Check Engine Light (CEL) The ECM detects incorrect or missing pressure data.
2. Frequent or Failed DPF Regens The sensor sends wrong data, so the DPF never regenerates or regenerates too often.
3. DPF Full or Soot Load Warnings False readings make the ECM think the DPF is clogged when it's not.
4. Engine Derate / Limp Mode The truck limits power to protect the engine from perceived exhaust backpressure.
5. Poor Fuel Economy If regeneration is too frequent or airflow is disrupted, efficiency drops.
6. Rough Idle or Hesitation Exhaust flow or turbo function may be affected if the sensor is misreporting pressure.
7. Inaccurate DPF Pressure Readings in Diagnostic Tools Techs


About the Manufacturer – Cummins:

Cummins is a leading American manufacturer of diesel and natural gas engines, as well as power generation systems and emissions solutions. Founded in 1919 and headquartered in Columbus, Indiana, Cummins is known globally for its durable, high-performance engines used in trucks, buses, construction equipment, agriculture, and power systems.

The brand is widely respected for its innovation in clean diesel technology, including aftertreatment systems, turbochargers, and advanced electronics that help reduce emissions while maximizing engine efficiency and reliability.

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