HX55W Turbo 4046127 4090042 Turbocharger for Cummins Dennis Coach Signature 600 Various With ISX2 Engine

HX55W Turbo 4046127 4090042 for Cummins ISX2 Signature 600 Engine

Product Overview

Heavy-duty HX55W wastegated turbocharger for Cummins ISX2 engines and Dennis Coach Signature 600. Replaces OEM 4046127, 4090042, 4036758. ISO 9001 & IATF 16949 certified.

High-Performance HX55W Turbocharger for Cummins ISX2 Signature 600 Engines

• Direct OEM Replacement: Specifically engineered for a 1:1 "drop-in" fit for Cummins ISX2 and Signature 600 series 15L diesel engines.
• Flagship Power Output: Optimized to handle the high boost requirements of 600HP configurations, restoring peak torque and heavy-haul capability.
• Superior Heat Resistance: Equipped with a premium K18 Nickel-Alloy Turbine Wheel, providing exceptional structural integrity under the extreme thermal loads of long-distance coach and truck operations.
• Precision VSR Balancing: 100% dynamic balancing tested at 150,000+ RPM to ensure ultra-smooth operation, zero vibration, and maximum bearing life.
• Factory Direct Quality: Manufactured by Zhongke Turbo with nearly 30 years of manufacturing excellence (ISO 9001 & IATF 16949 Certified).

Technical Specifications & OEM Cross-Reference

Applications

• Coaches/Buses: Dennis Coach, and various high-capacity long-distance buses.
• Heavy Duty Trucks: Freightliner, Kenworth, Peterbilt, and International trucks utilizing the Cummins ISX/Signature 600 platform.
• Engine Series: Cummins ISX, ISX2, Signature 600 (15.0L) engine platforms.
• Part Numbers: 4046127, 4040844, 4040845, 4040846, 4046132H, 4090042, 409004200, 409004200H, 409004200HX, 4090042H, 4090042HX, 4090042NX, 4090042RX, 4036758

FAQs

Q1: How do I verify if this HX55W turbocharger fits my Signature 600 engine? 

Please check the nameplate on your current turbocharger for the part number 4046127 or 4090042. Since the ISX series has many variants, confirming the 7-digit Cummins part number is essential. If you are unsure, please provide your Engine Serial Number (ESN) for a free fitment audit.

Q2: Is this turbocharger suitable for 600HP heavy-haul applications? 

Yes. Our HX55W is specifically built with heavy-duty internal components and a K18 nickel-alloy wheel to withstand the high constant-load and exhaust temperatures typical of 600HP heavy-duty operations.

Q3: What makes Zhongke’s Cummins turbos reliable for long-distance fleets? 

For coaches and long-haul trucks, downtime is extremely costly. We perform VSR high-speed balancing on every unit to ensure vibration-free operation, preventing premature bearing failure and maintaining fuel efficiency over thousands of miles.

Q4: What type of warranty do you provide? 

As a direct manufacturer with nearly 30 years of experience, we stand behind our quality and provide full technical support for global fleet owners.

Q5: Do you provide worldwide shipping? What is the delivery timeframe? 

We ship globally via premium carriers like DHL, FedEx, and UPS, as well as sea freight for bulk orders. In-stock items are typically dispatched within 24–48 hours. Express delivery to North America and Europe usually takes 5–7 business days.

About Us

Fengcheng Zhongke Turbocharger Co., Ltd. is a leading high-tech factory specializing in the R&D, production, and global distribution of high-performance turbochargers. Based in Fengcheng—one of the world’s most renowned turbocharger manufacturing hubs—we have grown from a local workshop into a global supplier, serving heavy-duty, commercial, and passenger vehicle markets worldwide.

At Zhongke, we don't just "make" parts.we engineer reliability.

• Material Integrity: We exclusively use K18 Nickel-Alloy turbine wheels, capable of withstanding extreme exhaust temperatures (up to 950°C) without deformation.
• Dynamic Balancing: 100% of our turbochargers undergo high-speed dynamic balancing tests at 150,000+ RPM to guarantee zero vibration and extended bearing life.
• Certified Quality: Our production processes are certified under ISO 9001 and IATF 16949, the gold standards for the global automotive and heavy-machinery industries.

Manufacturing Prowess:Our facility is equipped with state-of-the-art production lines, including precision 5-Axis CNC machining centers, high-speed VSR (Vibration Sorting Rig) balancing machines, and advanced material testing labs.

Our Specialization:We maintain a vast inventory of over 3,500+ turbocharger models, with a focus on heavy-duty and construction machinery engines, including Cummins, Caterpillar, Komatsu, Scania, Kobelco, and Hitachi. Beyond heavy-duty machinery, we also provide a comprehensive range of turbochargers for passenger vehicles and light commercial vans. Our catalog covers over 1,000 applications for leading automotive brands including Volkswagen, Audi, BMW, Mercedes-Benz, Toyota, Nissan, and Honda. Focused on optimizing fuel efficiency and restoring factory horsepower, our passenger car turbos are engineered with the same precision and K18 heat-resistant materials as our industrial line, ensuring reliable performance for daily commuting and high-speed driving alike.

Global Partnership & Support: Zhongke Turbo is more than just a manufacturer; we are your long-term technical partner. With nearly 30 years of export experience, we understand the logistics and technical requirements of the international market. We provide a warranty and dedicated technical support to help our partners succeed.

• Key Export Regions: North America, Europe, the Middle East, Africa, Latin America, and Southeast Asia.

Experience the difference of nearly 30 years of factory expertise. Contact us today for wholesale inquiries or technical consultations.