HE400VG Turbo 5552077 2837238 2842458 3773550 3796115 5354662 5459639 6746-81-8011 Turbocharger for Construction with QSC Engine

HE400VG Turbocharger for Construction Equipment with QSC Engine

Turbo Model & Part Numbers

Turbo Model: HE400VG

OEM / Reference Part Numbers:
5552077, 2837238, 2837239, 2842458, 2842459,
288194900, 2881949, 2881949H, 2881949HX, 2881949NX, 2881949RX,
3773550, 3773551,
3796115, 3796117, 3796119, 379611900, 3796119H, 3796119HX, 3796119NX, 3796119RX,
5354662, 5354663, 535466300, 5354663H, 5354663HX, 5354663NX, 5354663RX,
5459639, 5459639NX, 5459639RX,
6746-81-8011, 6746-81-8110, 6746-81-8112

(Please confirm part number and engine specification before ordering.)

Product Overview

The HE400VG turbocharger is a heavy-duty variable geometry turbocharger (VGT) engineered for construction and industrial equipment powered by QSC diesel engines. Designed to meet OEM performance standards, this turbocharger provides precise boost control across a wide operating range, making it ideal for machines that operate under varying loads and harsh conditions.

In construction environments, turbocharger failure often leads to power loss, excessive smoke, slow response, and increased fuel consumption. The HE400VG turbo restores correct airflow and boost pressure, ensuring stable torque delivery, improved throttle response, and reliable operation during continuous heavy-duty work.

Manufactured using high-temperature-resistant alloys and a precision-balanced rotating assembly, the HE400VG turbocharger is built for durability, efficiency, and long service life in demanding construction applications.

Key Features

Variable Geometry Technology (VGT)

Adjustable vane system optimizes boost pressure across low and high engine speeds.

OEM-Spec Direct Replacement

Matches original HE400VG turbocharger dimensions and listed OEM part numbers.

Heavy-Duty Construction

Designed for continuous operation in construction and earthmoving environments.

Improved Low-Speed Torque

VGT design enhances response under load and during frequent start-stop cycles.

Precision Dynamic Balancing

CHRA is dynamically balanced to reduce vibration and protect bearings.

Engine & Equipment Compatibility

• Diesel engines: QSC series engines
• Construction machinery and earthmoving equipment
• Loaders, excavators, dozers, and heavy-duty industrial machines
• Equipment operating in variable load and harsh environments

Who This Turbocharger Is For

The HE400VG turbocharger is ideal for:

• Construction equipment operators
• Heavy machinery fleet owners
• Diesel engine repair workshops
• Equipment maintenance contractors
• Engine rebuilders and remanufacturers

Problems This Turbocharger Solves

This turbocharger helps resolve:

• Loss of engine power and torque
• Slow turbo response at low RPM
• Excessive black smoke and emissions
• High fuel consumption under load
• Turbo vane sticking or wear

By restoring precise boost control, the HE400VG turbo improves engine efficiency, reliability, and productivity.

Benefits

• Restores factory-level engine performance
• Improves torque across the full RPM range
• Enhances fuel efficiency and combustion quality
• Reduces exhaust smoke and emissions
• Designed for long service life in heavy-duty use

Technical Specifications

Installation Guide

Installation Steps

• Shut down the engine and allow it to cool completely.
• Drain engine oil and inspect oil feed and return lines.
• Remove the old turbocharger and clean all mounting surfaces.
• Inspect intake, exhaust, and intercooler piping for debris.
• Pre-lubricate the turbocharger with clean engine oil.
• Install the HE400VG turbo using OEM torque specifications.
• Reconnect oil lines, actuator connections, intake, and exhaust.
• Start the engine and idle for several minutes to verify oil pressure and vane operation.

Professional installation is strongly recommended for VGT turbochargers.

Maintenance Recommendations

• Use OEM-approved engine oil and filters
• Perform regular oil changes according to engine schedule
• Keep air filtration systems clean
• Avoid sudden engine shutdown after heavy operation
• Periodically inspect VGT actuator and control system

Typical Usage Scenarios

• Excavators and earthmoving equipment
• Loaders and heavy construction machinery
• Infrastructure and mining projects
• Fleet maintenance and scheduled overhauls
• Engine rebuild and remanufacturing programs

Frequently Asked Questions (FAQ)

Q1: Is this a direct replacement HE400VG turbocharger?
Yes, it is manufactured to OEM specifications for all listed part numbers.

Q2: Is this turbo suitable for heavy construction duty?
Yes, it is designed for continuous operation under high load and variable conditions.

Q3: Does the turbocharger come pre-balanced?
Yes, the CHRA is high-speed dynamically balanced.

Q4: Is actuator calibration required?
Depending on the application, actuator calibration may be required after installation.

Q5: What warranty is provided?
A 12-month warranty against manufacturing defects is included.

Why Choose Us

Dedicated Turbocharger Manufacturer

We specialize exclusively in turbochargers and turbo components for diesel engines, covering construction, industrial, agricultural, marine, and commercial applications.

Quality Assurance

• OEM-standard manufacturing processes
• Precision machining and assembly
• Multi-stage performance inspection
• Stable quality for long-term supply

About Us

Fengcheng Zhongke Turbocharger Co., Ltd., founded in 2001, is a professional manufacturer of complete turbochargers, CHRAs, turbine shafts, compressor wheels, and repair kits.

Our products are exported globally to North America, Europe, South America, the Middle East, Africa, and Asia, serving equipment fleets, distributors, and engine rebuilders.

Our Team

Our team consists of experienced turbocharger engineers, quality inspectors, and international sales specialists. With deep technical knowledge and global market experience, we provide accurate product matching and dependable after-sales support.

OEM & Aftermarket Services

• OEM and ODM manufacturing
• Bulk supply and private labeling
• Technical verification before shipment
• Long-term supply for fleet and distributor customers

Looking for a reliable HE400VG turbocharger supplier for QSC construction engines?
Contact us now for technical confirmation, pricing, and availability.

HE400VG Turbocharger for QSC Engine | OEM Replacement 5552077 2837238 2881949 3796119 HE400VG turbocharger for QSC construction engines. Compatible with 5552077, 2837238, 2881949, 3796119, 5354663. Restore power, torque, and efficiency for heavy-duty equipment.

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