4309454RX | Genuine OEM Cummins Aftertreatment Doser Injector Kit

The 4309454RX Genuine OEM Cummins Aftertreatment Doser Injector Kit is a replacement component designed for use in compatible engine exhaust aftertreatment systems. It supports the delivery of dosing fluid as part of the emissions control process.

PRODUCT INFORMATION

Part Number: 4309454RX
Brand: Cummins
Condition: OEM (verify whether the specific unit is new or remanufactured)
Component: Aftertreatment Doser Injector Kit
Fuel Type: Not specified
Engine Applications: Specific applications to be verified by part number and engine configuration
Other important specifications: Exhaust aftertreatment dosing system component

APPLICATIONS

The 4309454RX Aftertreatment Doser Injector Kit is intended for compatible engine aftertreatment systems. Exact fitment depends on the engine, emissions system, and equipment configuration. Confirm compatibility using the original part number and the applicable manufacturer parts catalog before purchasing.

FUNCTION

The 4309454RX Aftertreatment Doser Injector Kit helps deliver dosing fluid into the exhaust aftertreatment system as part of the emissions control process. Proper operation supports the intended function of the aftertreatment system and its emissions control components.

A worn, damaged, or failing Aftertreatment Doser Injector Kit may cause symptoms such as:

• Aftertreatment system warning messages

• Emissions-related diagnostic trouble codes

• Improper dosing fluid delivery

• Reduced emissions control performance

• Aftertreatment system efficiency issues

• Engine derating associated with emissions system faults

These symptoms may also be caused by other aftertreatment components and do not necessarily confirm injector kit failure.

WHY REPLACE AN AFTERTREATMENT DOSER INJECTOR KIT?

A damaged or malfunctioning doser injector can affect dosing fluid delivery and the intended operation of the emissions control system. Replacing a confirmed faulty component with the correct OEM Cummins part can help restore proper dosing and support reliable aftertreatment system operation.

FITMENT INFORMATION

Before purchasing, verify the Part Number, VIN (where applicable), vehicle or equipment model, engine serial number, and aftertreatment system configuration. Do not assume compatibility based only on the appearance of the part or the general engine family.

If you are unsure whether this part is correct for your vehicle, please contact us with your VIN and original part number. We are happy to help verify compatibility before purchase.

GENUINE CUMMINS PART

Part Number: 4309454RX