RHF55V Turbo VAA40026 8981479061 Turbocharger for Isuzu NRR 4HK1-TCS Engine

RHF55V Turbocharger VAA40026 8981479061 for Isuzu NRR 4HK1-TCS Engine

Product Overview

Restore maximum payload capacity to your Isuzu NRR fleet. Exact-fit RHF55V VGS replacement turbocharger for 4HK1-TCS 5.2L engines (OEM 8-98147-906-1, 8983476140). ISO/IATF certified factory direct.

High-Performance RHF55V VGS Turbocharger for Isuzu 4HK1-TCS (5.2L) Engines

• Direct OEM Replacement: Specifically engineered for a 1:1 "drop-in" fit for Isuzu NRR and NPR trucks equipped with the 4HK1-TCS engine series, ensuring seamless integration with your truck's electronic VGS control system.
• Advanced VGS Technology: Features a Variable Geometry System (VGS) that adjusts exhaust gas flow to the turbine wheel. Technical Benefit: This eliminates turbo lag and provides massive low-end torque, essential for heavy-load starts in Isuzu NRR super-long chassis models.
• Superior Heat Resistance: Equipped with a premium K18 Nickel-Alloy Turbine Wheel, providing exceptional structural integrity and preventing blade deformation under the intense thermal loads of constant heavy-duty commercial service.
• 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 high-uptime logistics.
• Factory Direct Quality: Manufactured to meet or exceed ISO 9001 and IATF 16949 standards, offering a high-reliability, cost-effective alternative to expensive Isuzu dealership parts.

Technical Specifications & OEM Cross-Reference

Applications

• Isuzu N-Series Trucks: NRR, NPR, and NPR-HD models (2011–Present).
• Vocational Trucks: Super long chassis, double cab, and single cab logistics vehicles.
• Specialized Chassis: Refrigerated trucks, box trucks, and flatbeds utilizing the 5.2L 4HK1 platform.
• Engine Codes: Isuzu 4HK1-TCS, 4HK1-RJS, 4HK1-XY 5.2L Turbocharged Diesel.
• Isuzu OEM Numbers: 8981479061, 8981479063, 8982490470, 8983476143, 8983755352, 98147906, 98347614
• IHI Numbers: VAA40026, VBA40026, VCA40026, VDA40026, F58VED-S0026B, F5BVED-S0030G
• Interchange Numbers: 2-90KT2-011-0, 290KT20120, RX290KT20110  

FAQs

Q1: How do I verify if this RHF55V turbo fits my Isuzu NRR? 

Please check the nameplate on your current turbocharger for the part number 8981479061 or the IHI code VAA40026. Since the 4HK1 engine has multiple turbo variants (Fixed vs. Variable Geometry), matching the specific 10-digit Isuzu OEM number is the most reliable way to ensure a correct fit.

Q2: Does this unit include the electronic VGS actuator? 

This listing is for the complete turbocharger unit. Depending on the specific SKU configuration, the electronic actuator is typically included and pre-calibrated to match factory settings. If you only need the mechanical core, please check our CHRA category.

Q3: Why is VGS technology important for my Isuzu truck? 

Variable Geometry System (VGS) allows the turbo to act like a small turbo at low speeds (for quick spool-up) and a large turbo at high speeds (for maximum power). For a heavy Isuzu NRR on a super-long chassis, this is the difference between struggling to move from a stop and having smooth, responsive power.

Q4: What type of warranty do you provide for commercial logistics fleets? 

We understand that Isuzu trucks are the backbone of last-mile delivery, 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 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.