Modern diesel engines rely heavily on precise DEF dosing to meet emissions regulations and ensure reliable aftertreatment operation. The OEM 53012607 DEF (Diesel Exhaust Fluid) Doser Injector is built for Cummins units made between 2018-2024. Getting this component right helps maintain proper NOx control, reduce emission-related faults, and support cleaner exhaust performance.
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Delivers accurate metering of DEF fluid into the exhaust stream under proper pressure and timing—critical for efficient SCR (Selective Catalytic Reduction) function.
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Helps prevent common issues such as “not dosing” errors or DEF contamination that lead to warning lights, reduced power, or limp mode.
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Shields downstream aftertreatment components from wear caused by incorrect dosing (either too much or too little DEF), which can harm SCR catalysts or sensors.
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OEM fit ensures proper spray pattern, sealing, and compatibility with other components—minimizing leaks, misfires, or malfunction codes.
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Backed by durable engineering and warranty support, giving you confidence in fewer service interruptions.
Choosing the OEM 53012607 DEF Doser Injector means investing in the health and compliance of your emission control system. With correct dosing and reliable operation, your Cummins engine can run cleaner, avoid system alerts, and maintain its performance over the long haul.












