This is a Def Urea Dosing Valve Injector, also known as a doser, crucial for the Selective Catalytic Reduction (SCR) system to reduce NOx emissions. It precisely injects Diesel Exhaust Fluid (DEF) into the exhaust stream, meeting stringent emissions control standards and performing better than a worn or clogged injector. Operators may notice a Check Engine light, DEF system warnings, or reduced engine power if this component fails.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
From the same category — may also be needed
Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India
Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
Initial signs of a faulty dosing valve may include DEF system warning lights or messages on the dashboard. If ignored, the system may inject incorrect amounts of DEF, leading to increased emissions and potential derating of engine power. The worst consequence is the inability to meet emissions standards, resulting in the vehicle being unable to operate.
Ensure the DEF tank and lines are clean before installation to prevent contamination. Avoid overtightening the valve during installation, as this can damage the threads or the valve body.
When replacing the DEF dosing valve, it is recommended to inspect and clean the DEF injector lines and the DEF filter.