Industrial-Grade RHF55 Turbocharger for ZX200/240 Series (4HK1)

• Precision 4HK1 Optimization: Specifically engineered for the 4HK1-T 5.2L engine platform. Restores factory boost maps essential for the digging force and hydraulic response of ZX-3 series excavators.
• Direct "Drop-In" Fit: A 1:1 mechanical match for original IHI RHF55 units. Fully compatible with factory intake manifolds, oil feed lines, and water cooling jackets—ensuring a seamless, zero-modification installation for site mechanics.
• K18 Nickel-Alloy Turbine Wheel: Equipped with a high-grade K18 Nickel-Alloy turbine wheel, designed to withstand sustained high thermal loads (up to 950°C) during 24/7 heavy-duty excavation without blade deformation.
• VSR High-Speed Balancing: 100% dynamic balancing tested on a Vibration Sorting Rig (VSR) at operating speeds exceeding 160,000 RPM. Technical Benefit: This eliminates shaft vibration, ensures whisper-quiet operation, and maximizes the bearing service life in dusty environments.
• Heavy-Duty Uptime Standard: Manufactured to meet IATF 16949 quality standards by Zhongke Turbo, providing a high-reliability, cost-effective alternative to expensive original dealership parts.

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. 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.