Cummins ISB, ISL Pressure Sensing Tube 2017-2024: OEM 5418628

Precision Pressure Feedback Line for Cummins ISB & ISL Engines (2017–2024)

What is it?
The Cummins ISB/ISL Pressure Sensing Tube (2017–2024), identified by OEM part number 5418628, is a pressure signal line used in Cummins ISB and ISL diesel engines manufactured between 2017 and 2024. This tube connects pressure sensors to the intake or exhaust system, allowing accurate transmission of pressure data to the engine control unit (ECU), which uses that information to manage combustion and emissions-related functions.

Why choose this Pressure Sensing Tube?
This sensing tube is manufactured to Cummins’ original design standards for the ISB and ISL platforms, providing proper fitment and dependable pressure signal routing. A damaged, cracked, or clogged pressure line can cause the ECU to receive incorrect data, leading to improper combustion timing, inconsistent emissions control, or system warnings. Using the correct OEM-specified tube helps preserve accurate pressure feedback and supports coordinated engine and aftertreatment system behavior.

Key Benefits
✅ Designed for Cummins ISB & ISL engines (2017–2024)
✅ Ensures accurate pressure signal delivery to onboard sensors
✅ Supports coordinated combustion and emissions control strategies
✅ Direct replacement — no modifications required
✅ Built to withstand heavy-duty intake and exhaust environments

Applications
This pressure sensing tube is suitable for medium- and heavy-duty vehicles and equipment equipped with Cummins ISB or ISL engines built between 2017 and 2024. Common uses include delivery trucks, vocational rigs, regional transport trucks, construction equipment, and industrial machinery where precise pressure monitoring is critical to performance and emissions compliance.

Installation Notes
Before servicing, ensure the engine and intake/exhaust system have fully cooled to avoid injury. Inspect the existing tube for cracks, pinches, or contamination before removal. Install the replacement tube, making sure it is routed correctly and securely connected at all sensor and mount points. After installation, clear any stored system codes and verify correct pressure readings using appropriate diagnostic tools.

Final Thoughts
If your Cummins-powered vehicle is showing pressure-related fault codes, inconsistent combustion behavior, or unexpected emissions system alerts, replacing a worn or damaged pressure sensing tube with the correct OEM component can help restore accurate pressure feedback and smoother engine operation. The Cummins ISB/ISL Pressure Sensing Tube (OEM 5418628) plays a vital role in maintaining dependable communication between pressure sensors and the engine control system.