Doser Injector 2888173 fits Cummins ISB4.5, ISB6.7, QSB3.3, QSB6.7, ISL9, QSL9, ISX12, ISX15, and QSX15 engines. It injects diesel exhaust fluid into the exhaust stream for proper emissions control. OEM-grade construction for accurate dosing and long service life.

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