Diesel engines depend on precise airflow and boost monitoring to deliver smooth performance, efficient combustion, and reliable operation. A key part of that monitoring process is the pressure sensing tube, which connects critical pressure points to the engine’s sensor system. For Cummins ISB and ISL engines from 2017 to 2024, the Cummins ISB, ISL Pressure Sensing Tube 2017–2024: OEM 5505839 provides a factory-matched replacement that helps maintain proper pressure feedback and supports consistent engine response under real-world driving conditions.
• The pressure sensing tube links intake or boost pressure sources to the engine’s sensor network,
helping the electronic control module interpret pressure changes and adjust fuel and airflow accordingly.
• The OEM 5505839 tube is engineered specifically for Cummins ISB and ISL engines produced between 2017 and 2024,
ensuring correct fitment and seamless integration with original system components.
• A properly routed and sealed sensing tube supports stable turbocharger behavior by delivering reliable boost pressure information,
helping the engine maintain responsiveness during acceleration and load changes.
• Installing the correct OEM pressure sensing tube reduces the likelihood of false sensor alerts or unintended fault codes,
helping minimize unneeded diagnostic time and interruptions.
• Replacing damaged or deteriorated tubing with the Cummins ISB, ISL Pressure Sensing Tube 2017–2024: OEM 5505839
supports better turbo control, smoother idle, and steadier engine performance.
• Choosing an OEM-grade component gives you confidence in durable construction, proper sealing, and long-term service life
for everyday diesel operation.
The pressure sensing tube may be a small component, but it plays a big role in how your Cummins ISB or ISL engine interprets pressure data and responds on the road. The OEM 5505839 tube helps ensure your engine continues to receive dependable pressure inputs, aiding in consistent combustion, responsive performance, and fewer service interruptions. At Tamerx Diesel Parts, we offer quality diesel components to help keep your engine running reliably mile after mile.



















