4946291RX Genuine OEM Cummins Air Compressor for ISB ISQ QSB

4946291RX is a Genuine OEM Cummins Air Compressor designed for use with specified Cummins ISB, ISQ, and QSB engine applications. This air compressor is an engine-mounted component used within the vehicle air system and is intended to provide compressed air for systems that require it.

PRODUCT INFORMATION

Part Number: 4946291RX
Brand: Cummins
Condition: Genuine OEM
Component: Air Compressor
Fuel Type: Not specified
Engine Applications: Cummins ISB, ISQ, and QSB engine applications
Other important specifications: Verify application using the part number and vehicle/engine configuration.

APPLICATIONS

The 4946291RX Air Compressor is identified for Cummins ISB, ISQ, and QSB engine applications. Always verify the original part number and complete vehicle or engine configuration before purchase to confirm the correct application.

FUNCTION

The Cummins Air Compressor supplies compressed air for vehicle systems that depend on engine-driven air pressure. Proper operation of the compressor helps maintain the required air supply for the systems it serves.

A worn, damaged, or failing Air Compressor may cause symptoms such as:
• Insufficient air pressure
• Slow air pressure buildup
• Air system performance issues
• Unusual compressor noise
• Air leakage or pressure loss
• Compressor failure or inability to provide adequate air pressure

WHY REPLACE AN AIR COMPRESSOR?

A faulty Air Compressor can prevent the air system from reaching or maintaining the required pressure. Replacing a worn or damaged 4946291RX with the correct Genuine OEM Cummins component can help restore proper compressor operation and reliable air supply.

FITMENT INFORMATION

The 4946291RX Air Compressor should be verified against the original part number, VIN, vehicle model, engine, and configuration before purchase. Do not rely on the appearance of the component alone when determining fitment.

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: 4946291RX