Caterpillar DEF Doser Injector 2018-2024: OEM 516-2724

Precise Urea Dosing for Cat Diesel Engines

What Is It?

The Caterpillar OEM 516‑2724 is a direct-fit DEF (Diesel Exhaust Fluid) dosing injector designed for Cat diesel engines manufactured between 2018 and 2024. Installed in the SCR aftertreatment system, it accurately meters urea injection to reduce NOₓ emissions and maintain compliance.

Why Choose OEM 516‑2724?

Manufactured to Caterpillar specifications, this doser injector ensures correct spray pattern, flow rate, and electronic integration. It is fully compatible with Caterpillar ECM protocols, ensuring proper system function and avoiding faults or service interruptions.

Key Benefits

✅ Exact OEM Fit for Cat 2018–2024 engines
✅ Precise Urea Metering for accurate SCR working conditions
✅ Sensor-Ready Design fully compatible with factory harnesses
✅ Durable Construction built for corrosive, high-temperature environments
✅ Supports Emissions Standards by maintaining NOₓ reduction efficiency

Applications

This injector is used on medium- and heavy-duty Cat diesel engines with SCR systems in highway, off-highway, and industrial machinery. It is essential for fleets operating in emissions-controlled regions, ensuring reliable NOₓ treatment across the equipment lifecycle.

Installation Notes

Install with a qualified technician. Ensure DEF lines and connections are clean and leak-free. After installation, perform a system regen or test cycle using Caterpillar diagnostic tools to verify correct dosing, watch for leaks, and clear any codes before returning the machine to service.

Final Thoughts

The OEM 516‑2724 DEF doser injector is a key component for maintaining SCR system effectiveness and regulatory compliance in Caterpillar diesel engines. With OEM precision and reliability, it provides consistent urea dosing and supports long-term emissions integrity.