Consistent DEF Flow: Cummins ISL-280 Doser DEF Pump (2017–2021), OEM N82892
What is it?
The Cummins ISL-280 Doser DEF Pump (OEM N82892) ensures accurate delivery of Diesel Exhaust Fluid (DEF) to the Selective Catalytic Reduction (SCR) system in ISL-280 engines manufactured between 2017 and 2021. By regulating pressure and flow, it keeps the DEF system operating smoothly during a wide range of driving and load conditions.
Why choose this OEM DEF Pump?
Specifically designed for Cummins ISL-280 engines, this OEM pump installs directly into the system with no calibration required. It helps avoid common issues such as low dosing, fault codes, or reduced performance that can occur with aftermarket alternatives.
Key Benefits
✅ OEM fit for Cummins ISL-280 engines (2017–2021)
✅ Maintains steady DEF pressure and dosing accuracy
✅ Integrated safeguards reduce fault codes and SCR interruptions
✅ Built to handle temperature shifts, vibration, and extended service life
✅ Helps prevent limp-mode events and downtime
Applications
Perfect for trucks, buses, and equipment powered by Cummins ISL-280 engines during the 2017–2021 production years. This pump keeps the DEF system performing as designed, whether in stop-and-go fleet service or long-haul operation.
Installation Notes
Power down the engine and relieve system pressure before removing the old pump. Inspect all connectors and fluid lines for contamination before installing the new unit. Secure the OEM pump with factory fittings, reconnect wiring, and restore system pressure. After installation, clear any stored codes and confirm correct operation through a diagnostic tool.
Final Thoughts
If your Cummins ISL-280 is showing DEF dosing errors, pressure faults, or reduced performance, replacing the unit with this OEM DEF Pump is the solution. It restores accurate fluid delivery and system consistency—available now at Tamerx.