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PAI Industries · Engine
209940
In stock · ships from Knoxville
This is a DEF (Diesel Exhaust Fluid) doser injector, also known as a dosing valve, for the SCR (Selective Catalytic Reduction) system on certain Cummins medium-duty engines.
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Verified fitment for 3 applications
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All confirmed applications for this part number.
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Other applications
Fits models requiring a 2-pin male connector. Always confirm engine serial number and original dosing valve connector type, as some later ISC/ISL variants may use a different injector.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 2 of 2.
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It precisely sprays urea solution into the exhaust stream to reduce nitrogen oxide (NOx) emissions. Over time, the injector can clog from crystallized DEF or fail electrically, causing poor performance, derate, and a check engine light. Replacing it with this aftermarket unit restores proper emission control and engine operation.
Part Number: 209940
DOSER VALVE
Vendor: PAI Industries
Dealer: KP Services Crossville
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