GT2556S Turbo 32006047 762931-0001 for JCB Backhoe 4.4L Dieselmax
Product Overview
Direct-fit GT2556S replacement turbocharger for Tier 2 JCB 4.4L engines (OEM 320/06047). ISO/IATF certified factory direct.
Heavy-Duty GT2556S Turbocharger for JCB 3CX/4CX & Dieselmax 4.4L Engines
- Direct OEM Replacement: Specifically engineered for a 1:1 "drop-in" fit for JCB 4.4L Dieselmax engines, ensuring a perfect match for Euro-2 and EPA Tier 2 emissions standards.
- Built for Job Site Rigor: Optimized to restore the original breakout force and travel speed of your JCB backhoe loader, even under heavy excavation or high-ambient temperature conditions.
- Superior Heat Resistance: Equipped with a premium K18 Nickel-Alloy Turbine Wheel, providing exceptional structural integrity and preventing blade deformation during continuous heavy-duty operation.
- Precision VSR Balancing: 100% dynamic balancing tested at 150,000+ RPM to ensure ultra-smooth operation, zero vibration, and maximum bearing life—critical for reducing machine downtime.
- Factory Direct Quality: Manufactured by Zhongke Turbo with nearly 30 years of manufacturing excellence (ISO 9001 & IATF 16949 Certified).
Technical Specifications & OEM Cross-Reference
| Specification | Details |
| Turbo Model | GT2556S Turbo |
| Engine Application | JCB 4.4L Dieselmax (Euro-2 / EPA Tier 2) |
| Machine Compatibility | JCB Agricultural Tractors, 3CX / 4CX Backhoe Loaders |
| JCB OEM Numbers | 320/06047, 32006081, 32006082, 32006083, 32006084, 32006094, 32006085, 32006160 |
| Garrett / Turbo | 762931-0001, 762931-0002, 762931-0003, 762931-5001S |
| Quality Standard | ISO 9001, IATF 16949 |
Applications
- JCB Backhoe Loaders: 3CX, 3CX Super, 4CX, 4CX Super (Euro-2/Tier 2 versions).
- JCB Telescopic Handlers: Loadall series with 4.4L Dieselmax engine.
- Agricultural Equipment: JCB Fastrac and other tractors utilizing the 4.4L Tier 2 platform.
- Engine Codes: JCB 4.4L Dieselmax (Non-electronic, Tier 2 configurations).
- JCB Numbers: 320/06047, 32006081, 32006082, 32006083, 32006084, 32006094, 32006085, 32006160
- Garrett Numbers: 762931-0001, 762931-0002, 762931-0003, 762931-5001S, 762931-5002S, 762931-5003S
FAQs
Q1: How do I verify if this GT2556S turbocharger fits my JCB?
Please check the nameplate on your current turbocharger for the JCB part number 320/06047 or the Garrett number 762931-0001. These are the most reliable identifiers for the Tier 2 engine. If the plate is unreadable, please provide your Machine Serial Number (VIN) to our support team for a free fitment audit.
Q2: Is this turbocharger compatible with the newer EcoMax Tier 4 engines?
No. This model is specifically for Euro-2 / Tier 2 mechanical engines. Tier 4 engines typically use electronic actuators or different flange configurations. Always match the OEM number before ordering.
Q3: What makes Zhongke’s JCB turbos reliable for construction rental fleets?
Construction equipment faces high vibration and dusty air. We use genuine K18 nickel-alloy wheels and perform VSR high-speed balancing to ensure our turbos can handle constant load changes and intense heat without premature bearing failure.
Q4: What type of warranty do you provide for industrial users?
As a direct manufacturer with nearly 30 years of experience, we stand behind our quality and provide full technical support for JCB owners and operators 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 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 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.

















