5253221RX | Genuine OEM Cummins Precision Common Rail Fuel Injector

5253221RX is a Genuine OEM Cummins Precision Common Rail Fuel Injector designed for use in a diesel fuel injection system. The injector delivers fuel into the engine combustion process and is an important component of the common rail fuel system.

PRODUCT INFORMATION

Part Number: 5253221RX
Brand: Cummins
Condition: Genuine OEM Remanufactured
Component: Precision Common Rail Fuel Injector
Fuel Type: Diesel
Engine Applications: Verify by Part Number and VIN
Other important specifications: Common rail fuel injection component

APPLICATIONS

The 5253221RX Precision Common Rail Fuel Injector is intended for diesel engine fuel injection systems using common rail technology. Specific vehicle, engine, and application compatibility should be verified using the original part number and VIN before purchase.

FUNCTION

The 5253221RX Precision Common Rail Fuel Injector meters and delivers pressurized diesel fuel into the engine according to the requirements of the fuel injection system. Proper injector operation supports accurate fuel delivery and efficient engine combustion.

A worn, damaged, or failing Precision Common Rail Fuel Injector may cause symptoms such as:
• Hard starting or extended cranking
• Rough or unstable engine operation
• Engine misfires
• Reduced engine performance
• Increased or uneven fuel consumption
• Fuel injection-related fault codes

WHY REPLACE A PRECISION COMMON RAIL FUEL INJECTOR?

A faulty Precision Common Rail Fuel Injector can affect fuel delivery and engine combustion, potentially causing poor engine operation and fuel system faults. Replacing a defective injector with the correct 5253221RX Genuine OEM Cummins part helps restore proper fuel delivery within the common rail system.

FITMENT INFORMATION

Before purchasing, verify the Part Number, VIN, vehicle model, engine, and configuration to confirm compatibility. Do not rely on appearance alone, as fuel injectors can vary between engine and fuel system applications.

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: 5253221RX