4705466 | Genuine OEM Cummins DEF Doser Injector

4705466 Genuine OEM Cummins DEF Doser Injector is a component designed for use in compatible diesel engine exhaust aftertreatment systems. It delivers diesel exhaust fluid (DEF) into the aftertreatment system to support emissions control. The exact application should be verified using the original part number and engine specifications.

PRODUCT INFORMATION

Part Number: 4705466
Brand: Cummins
Condition: Genuine OEM
Component: DEF Doser Injector
Fuel Type: Diesel
Engine Applications: Not specified
Other important specifications: Diesel exhaust fluid dosing component

APPLICATIONS

The 4705466 Cummins DEF Doser Injector is intended for compatible Cummins diesel engine aftertreatment systems requiring this specific component. Exact applications may vary depending on the engine model, emissions system, vehicle configuration, and production specifications. Verify compatibility using the original part number and vehicle information before purchasing.

FUNCTION

The DEF Doser Injector delivers diesel exhaust fluid into the exhaust aftertreatment system as part of the emissions reduction process. In systems equipped with selective catalytic reduction (SCR), proper DEF dosing supports the reduction of nitrogen oxide (NOx) emissions. Correct operation depends on compatibility with the specific engine and aftertreatment configuration.

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

• Aftertreatment system warning lights
• Diagnostic trouble codes
• Incorrect DEF dosing
• SCR system performance issues
• Increased emissions
• Engine derate or warning messages, depending on the vehicle system

WHY REPLACE A DEF DOSER INJECTOR?

A damaged or malfunctioning DEF Doser Injector can interfere with diesel exhaust fluid delivery and affect aftertreatment system performance. Incorrect dosing may trigger emissions-related faults and interfere with SCR system operation. Replacing a faulty injector with the correct Genuine OEM Cummins DEF Doser Injector can help restore proper fluid delivery and support normal emissions control operation.

FITMENT INFORMATION

Before purchasing, verify the Part Number, VIN, vehicle model, engine, and configuration to confirm the correct application. DEF Doser Injector compatibility may vary by engine family, emissions standard, and aftertreatment system. Do not assume compatibility based only on the appearance of the part.

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: 4705466