GT4702 Turbo 3104766 4951982 3104454 Turbocharger for Cummins QSX15 ISX15 Engine

GT4702 Turbocharger 3104766 4951982 3104454 for Cummins QSX15 ISX15 Engine

Product Overview

Restore peak torque and fuel efficiency to your Cummins 15L engine. Premium GT4702 replacement turbo for ISX15, QSX15, and X15 platforms. IATF 16949 & ISO 9001 certified manufacturing for heavy-duty reliability.

Heavy-Duty GT4702 Turbocharger for Cummins 15L ISX15, QSX15, and X15 Engines

• Direct OEM Replacement: Specifically engineered for a 1:1 "drop-in" fit for the Cummins 15-liter engine platform, ensuring seamless integration with your truck or industrial equipment's original exhaust and oil systems.
• Maximize 15L Performance: Optimized for the high-airflow requirements of the ISX/QSX series, restoring original horsepower (up to 600HP+) and high-end torque for heavy hauling and industrial power generation.
• Superior Heat Resistance: Equipped with a premium K18 Nickel-Alloy Turbine Wheel, providing exceptional structural integrity and preventing blade deformation under the extreme thermal loads of constant heavy-duty operations.
• Precision VSR Balancing: 100% dynamic balancing tested at high speeds to ensure ultra-smooth operation, zero vibration, and maximum bearing longevity—essential for minimizing downtime in fleet and mining applications.
• Factory Direct Quality: Manufactured to meet or exceed ISO 9001 and IATF 16949 standards, providing a high-reliability, cost-effective alternative to expensive Tier-1 dealer parts.

Technical Specifications & OEM Cross-Reference

Applications

• On-Highway Trucks: Class 8 trucks (Peterbilt, Kenworth, Freightliner) powered by the Cummins ISX15/X15.
• Industrial Machinery: Large excavators, mining trucks, and drilling rigs utilizing the QSX15 engine.
• Power Generation: Cummins-powered generator sets requiring high-constant boost.
• Engine Codes: Cummins ISX, QSX15, X15 series 15.0L Turbocharged Diesel.
• Cummins Numbers: 3104766, 3104769, 4951982, 3106769, 4955241, 3104454, 3106768, 4955240
• Garrett / Interchange Numbers: 704604-0001, 704604-0003, 704604-0007, RJM06593 

FAQs

Q1: How do I verify if this GT4702 turbocharger fits my Cummins ISX15? 

Please check the nameplate on your current turbocharger for the part number 3104766 or the Garrett code beginning with 704604. Since the ISX15 is used in many horsepower ratings, matching the specific 7-digit Cummins part number is the most reliable way to ensure a correct fit.

Q2: Is this a Variable Geometry Turbo (VGT)? 

No. This GT4702 is a fixed-geometry, heavy-duty turbocharger. It is commonly used as a direct replacement for non-VGT versions or as part of a "VGT Delete" kit for specific performance or reliability applications. Always confirm your manifold type before ordering.

Q3: What is the benefit of the K18 Nickel-Alloy turbine wheel? 

The K18 alloy is designed specifically for high-stress, high-heat environments. It allows the turbine blades to maintain their shape and efficiency even at the 1200°F+ temperatures common in heavy-duty 15L engines, preventing catastrophic failure and maintaining boost consistency.

Q4: What type of warranty do you provide for fleet and industrial users? 

We understand that 15L engines are the workhorses of the industry, which is why we stand behind our quality with full technical support for fleet owners and professional workshops worldwide.

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 1,500+ turbocharger models, with a focus on heavy-duty and construction machinery engines, including Cummins, Caterpillar, Komatsu, John Deere, Scania, and Hitachi. Whether it is a single replacement for an excavator or a bulk order for a regional distributor, we deliver "OE Performance at Factory Direct Pricing.

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.