Caterpillar DEF Doser Injector 2018-2024: OEM ZUAC-00958

Clean Emissions, OEM-Grade Fit: Caterpillar DEF Doser Injector OEM ZUAC‑00958

What Is It?

The OEM ZUAC‑00958 DEF doser injector is a precision dosing valve located in the DEF delivery assembly of Caterpillar diesel engines (2018–2024). It delivers exact amounts of Diesel Exhaust Fluid into the SCR system to ensure efficient NOₓ reduction and regulatory compliance.

Why Choose OEM ZUAC‑00958?

Built to Caterpillar factory standards, this injector guarantees a precise fit and seamless electrical compatibility. It provides accurate dosing under various operating conditions, helping maintain system stability and preventing SCR-related warning codes.

Key Benefits

✅ Exact OEM compatibility with 2018–2024 Caterpillar SCR engines
✅ Precise DEF injection to maintain optimal NOₓ conversion
✅ Plug-and-play integration—matches factory wiring and signals
✅ Corrosion-resistant, high-temperature materials
✅ Supports reliable SCR system operation

Applications

Commonly used in Caterpillar machines equipped with SCR aftertreatment, including excavators, loaders, haul trucks, and generators. This injector is ideal for fleets working in regulated NOₓ environments that rely on consistent emissions control.

Installation Notes

Installation should be handled by a certified technician. Before fitting, inspect DEF lines and connectors for contamination. Once installed, delete any active fault codes and run a forced SCR cycle with Caterpillar diagnostic tools to verify dosing functionality.

Final Thoughts

The OEM ZUAC‑00958 doser injector ensures proper DEF delivery and SCR system efficiency. With factory-precise fit, materials engineered for DEF corrosion resistance, and plug-and-play reliability, it’s a smart choice for maintaining emissions compliance and machine uptime.