DEF Doser Injector Cummins 2888173 | 2888112

High-Precision DEF Doser Injector for Cummins Engines

The 2888173 Doser Injector is a critical component of the Selective Catalytic Reduction (SCR) system. It is specifically designed to inject Diesel Exhaust Fluid (DEF) into the exhaust stream, facilitating the chemical reaction that reduces harmful nitrogen oxide (NOx) emissions.

Controlled directly by the engine’s Electronic Control Module (ECM), this injector ensures precise metering of DEF across various operating conditions. Proper functioning of the doser is essential for maintaining engine performance and avoiding “limp mode” or derate conditions caused by emissions failures.

Product Features and Compatibility:

• Engine Compatibility: Designed for Cummins ISX, ISC, ISL, QSC, and QSL heavy-duty engines.
• System Integration: Works seamlessly with the Diesel Particulate Filter (DPF) and SCR catalyst.
• Precision Engineering: Delivers exact fluid amounts to ensure compliance with environmental standards.
• Durability: Built to withstand the harsh thermal environment of the exhaust system.

Regular maintenance of the DEF dosing system prevents urea crystallization and potential damage to expensive SCR components. Replacing a faulty injector restores fuel efficiency and ensures your vehicle meets legal emission requirements.