HE221W QSB QSB4 Turbocharger 4048808 4955280 4955276 for Cummins Engine Parts

Product Details

Product Overview

This high-performance HE221W turbocharger is a direct replacement unit designed for Cummins QSB and QSB4 diesel engine platforms. The turbo, identified by OEM cross-reference numbers 4048808, 4955280, and 4955276, is a critical component for restoring engine power, fuel efficiency, and emissions compliance in heavy-duty machinery.

Manufactured to meet OEM size and performance specifications, this turbocharger is commonly applied in a wide range of off-highway and on-highway equipment. It is suitable for use in excavators, trucks, forklifts, bulldozers, buses, and loaders, making it a versatile solution for fleet operators and equipment dealers worldwide.

Key Features & Benefits

• OEM-Spec Dimensions: Manufactured to the exact OEM size, ensuring a direct, bolt-on fit without the need for modifications or adapter kits.
• High Durability: Constructed with robust materials to withstand the high thermal and mechanical stresses of diesel turbocharging, extending service life.
• Restored Engine Performance: Replaces a worn or failed unit to restore lost horsepower, torque, and throttle response in your Cummins QSB engine.
• Improved Fuel Economy: Optimized turbine and compressor wheel geometry helps maintain proper air-fuel ratios, reducing fuel consumption under load.
• Rigorous Quality Control: Each unit undergoes a machinery test report and video outgoing inspection to verify performance before shipment.
• Versatile Application: Compatible with multiple machine types including excavators, trucks, and loaders, reducing inventory complexity for dealers.

Technical Specifications

OEM Cross-Reference

This turbocharger is a direct replacement for the following genuine OEM part numbers. Use the list below to verify compatibility with your existing unit:

• Cummins OEM: 4048808, 4955280, 4955276
• Holset Model: HE221W

Note: Always compare the turbocharger model tag and mounting flange configuration with your original unit before installation.

Compatibility

This HE221W turbocharger is commonly used for the following engine models and equipment applications:

• Engine Models: Cummins QSB 4.5L, QSB 6.7L, QSB4 series
• Equipment Applications: Excavators, Trucks, Forklifts, Bulldozers, Buses, Loaders, and other heavy machinery

Fitment is inferred based on common OEM specifications. We recommend verifying the turbocharger model and part number on your specific engine to ensure a correct match.

Global Supply & Distribution

We maintain a robust supply chain capable of shipping this HE221W turbocharger to major industrial markets worldwide. Our distribution network covers North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.

We offer fast delivery to major ports and industrial centers, including Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai. Our export team is experienced in international trade compliance, including customs documentation and shipping logistics for heavy-duty engine parts.

Quality Assurance

Each turbocharger is manufactured under strict quality control standards in ISO-certified facilities. All units are tested for balance, pressure, and flow characteristics to ensure reliable operation upon installation.

Warranty: 6 Months

After Warranty Service: Spare parts are available for continued maintenance support.

Testing: Machinery Test Report and Video Outgoing Inspection are provided with each shipment to confirm product integrity.

FAQ

Q1: How can I confirm this HE221W turbocharger will fit my Cummins QSB engine?
A: First, locate the part number on your current turbocharger tag. If it matches 4048808, 4955280, or 4955276, this unit is a direct replacement. Additionally, verify the mounting flange pattern and oil feed/return line positions match your existing setup.

Q2: What maintenance is required before installing a new turbocharger?
A: Before installation, always replace the engine oil and oil filter. Inspect the air intake system for debris or blockages. Clean or replace the air filter. It is also critical to prime the turbocharger with clean engine oil through the oil inlet port before starting the engine to prevent dry start damage.

Q3: Is this turbocharger suitable for both on-highway and off-highway applications?
A: Yes, this unit is designed for versatile use. It is suitable for on-highway trucks and buses as well as off-highway equipment like excavators and bulldozers. However, always check that the turbocharger’s specifications (boost pressure, flow rate) align with your specific engine’s emissions calibration and power output requirements.