HX40W Turbo 4039742 4089961 Turbocharger for Cummins With QSL 9.0L Engine

HX40W Turbo 4039742 4089961 for Cummins Industrial QSL 9.0L Engine

Product Overview

Restore massive torque to your Cummins QSL equipment. Exact-fit HX40W replacement turbocharger (OEM 4039742, 2881750). ISO/IATF certified factory direct.

Industrial-Grade HX40W Turbocharger for Cummins Pegasus QSL Series Engines

• Direct OEM Replacement: Specifically engineered for a 1:1 "drop-in" fit for Cummins QSL and QSL9 engines using the Pegasus platform, ensuring seamless integration with your original air and oil systems.
• Engineered for High-Torque Workload: Optimized to deliver the precise boost required for 8.9L industrial engines, restoring original breakout force, cycle times, and fuel efficiency to factory standards.
• Superior Heat Resistance: Equipped with a premium K18 Nickel-Alloy Turbine Wheel, providing exceptional structural integrity and preventing blade deformation under the continuous high thermal loads of heavy-duty industrial operations.
• Precision VSR Balancing: 100% dynamic balancing tested at 150,000+ RPM on a Vibration Sorting Rig (VSR) to ensure ultra-smooth operation, zero vibration, and maximum bearing longevity—critical for preventing mission-critical downtime.
• Factory Direct Quality: Manufactured to meet or exceed ISO 9001 and IATF 16949 standards, providing a reliable, cost-effective alternative to expensive Tier-1 dealer parts.

Technical Specifications & OEM Cross-Reference

Applications

• Heavy Construction Machinery: Large excavators and wheel loaders utilizing the Cummins QSL9 8.9L engine.
• Industrial Power: Specialized industrial pumps, rock crushers, and off-highway vocational vehicles.
• Agricultural Equipment: High-horsepower tractors and harvesters powered by the Pegasus QSL platform.
• Engine Codes: Cummins QSL, QSL9, and 8.9L Tier 3 / Stage IIIA industrial engine configurations.
• Cummins / Holset Numbers: 4039742, 4039743, 2839192, 2839193, 2839193H, 2881750, 288175000, 2881750NX, 2881750RX, 4089961, 4089961RX, 4309090, 4309090NX, 4309090RX

FAQs

Q1: How do I verify if this HX40W turbocharger fits my Cummins QSL engine? 

Please check the nameplate on your current turbocharger for the part number 4039742 or the Cummins OEM number 2881750. Since the QSL engine has many specific industrial and agricultural builds, matching the 7-digit Cummins part number is the most reliable way to ensure a correct fit.

Q2: Does this turbocharger provide the same performance as the original Holset unit? 

Yes. Our turbochargers are precision-calibrated to match the exact airflow and boost maps required by the Cummins QSL Pegasus platform. By using high-grade K18 nickel-alloy turbine wheels and professional VSR balancing, we ensure that power output and fuel economy match the original factory standards.

Q3: Are any modifications needed for installation on a heavy excavator? 

No modifications are required. This is a 100% "drop-in" direct replacement. All mounting flanges, oil inlet/outlet ports, and air intake connections are identical to the original factory specifications for a seamless and quick installation.

Q4: What type of warranty do you provide for high-uptime industrial applications? 

We understand that Cummins QSL engines often operate in demanding, mission-critical environments like mining and construction sites, which is why we stand behind our quality with full technical support for our global customers.

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, Deutz, Doosan, 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 Nissan, Audi, BMW, Mercedes-Benz, Toyota, Honda, and Hyundai. 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.