HX55W Turbo 4046127 4040844 4040845 4040846 4046132 4090042 4036758 Turbocharger for Cummins Dennis Coach Signature 600 Various With ISX2 QSX15 Engine

HX55W Turbocharger for Cummins ISX2 / QSX15 / Signature 600

Part Number:4046127 4040844 4040845 4040846 4046132 4090042 4036758

Upgrade your Cummins-powered heavy equipment with the HX55W Turbocharger, engineered to deliver maximum power, stable boost pressure, and long-term reliability for high-load diesel applications. Whether your fleet runs Signature 600, ISX2, QSX15 engines or Dennis Coach vehicles, this turbo provides a direct-fit solution with OEM-level precision.

Product Highlights

Direct Replacement Turbocharger

Manufactured to original Cummins specifications, ensuring seamless installation without modifications.

Built for Heavy-Duty Commercial Use

Designed for high-load, high-temperature conditions in trucks, coaches, buses, generators, and industrial machines.

Optimized Boost, Reduced Lag

Improved airflow dynamics deliver stronger acceleration, faster spool, and better engine response.

Enhanced Longevity & Durability

Heat-resistant turbine, precision-balanced shaft, and reinforced bearing system extend service life even under extreme workloads.

Technical Specifications

Who Is This Product For?

This turbocharger is ideal for:

Fleet Owners & Logistics Companies

Keep long-haul trucks running with consistent and powerful boost.

Construction & Mining Equipment Operators

Engineered for machines that operate in extreme environments.

Bus & Coach Operators (Dennis)

Restores full engine power for passenger transport vehicles.

Repair Shops & Distributors

Reliable aftermarket solution with OEM-level stability and global compatibility.

What Problems Does It Solve?

Power Loss & Slow Acceleration

Restores factory boost levels to recover engine power.

High Fuel Consumption

Stable boost improves combustion efficiency, reducing operating cost.

Turbo Oil Leakage / Smoke Issues

Our upgraded sealing and bearing design prevents common turbo failures.

Downtime & Expensive Repairs

Long-life components reduce maintenance frequency and unexpected breakdowns.

Usage Scenarios

1. Freight Trucks / Long-Distance Transport

Ensures stable boost during long-hour, high-load operation.

2. Passenger Coach & Bus Fleets

Provides smooth acceleration and dependable power delivery.

3. Construction & Mining Machinery

Supports extreme working conditions: high temperature, dust, vibration.

4. Industrial Engines / Power Units

Delivers efficient turbocharging for generators and off-road power equipment.

Installation Guide (Quick Tutorial)

1. Pre-Installation Checks

• Clean oil supply lines
• Check air filter & intercooler
• Ensure no debris or metal particles remain
• Verify exhaust manifold condition

2. Installation Steps

• Remove old turbo and drain residual oil
• Install gasket & position new HX55W turbo
• Tighten oil feed & return lines
• Connect air inlet/outlet hoses
• Prime turbo with clean engine oil
• Start engine and idle for 3–5 minutes for oil circulation

3. Break-In Advice

Avoid high boost for the first 50–100 km to extend turbo life.

FAQ

Q1: Is this turbo a direct replacement for Cummins ISX2 or QSX15?

Yes. It follows OEM dimensions and bolts on without any modifications.

Q2: Do you provide high-speed balancing?

Yes. Every turbo is VSR-balanced to ensure smooth and reliable performance.

Q3: Can you supply bulk orders for distributors or fleets?

Absolutely—we support OEM & wholesale supply with stable long-term inventory.

Q4: Do you manufacture according to original Cummins standards?

Yes. We follow strict OEM-level measurement, material selection, and quality inspection procedures.

About Us — Fengcheng Zhongke Turbocharger Co., Ltd.

Founded in 2001, Zhongke Turbocharger is a professional manufacturer specializing in turbochargers, CHRAs, repair kits, and turbo components for global automotive, truck, and heavy-equipment markets.
With over 25+ years of engineering expertise, we produce high-precision turbochargers that match or exceed OEM standards from brands like Cummins, Holset, Garrett, BorgWarner, CAT, IHI, and more.

Our advantages:

• Advanced CNC machining & balancing equipment
• Strict quality control & material inspection
• Professional R&D team for modeling & testing
• Fast delivery & global shipping

Meet Our Team

Engineering Team

Experts with decades of turbocharger development experience, ensuring accuracy and durability.

Quality Inspection Team

Each turbo passes boost testing, noise testing, balance testing, and durability verification.

Sales & Support Team

Turbo specialists who provide real-time support, installation guidance, and after-sales service.

Boost Your Engine Performance Today

A reliable turbocharger can determine the productivity of your whole operation.
Choose HX55W Turbo by Zhongke Turbocharger and ensure your Cummins engine performs at its best—every day, everywhere.