RHF55V Turbo VAA40026 VABAF550030 VBA40026 VCA40026 VDA40026 2-90KT2-011-0 290KT20120 8981479062 8981479063 8982490470 8983476140 8983476141 8983476142 8983476143 8983755350 8983755351 98249047 Turbocharger For Isuzu NPR-HD NQR with 4HK1 Engine

RHF55V Turbocharger for Isuzu NPR-HD / NQR with 4HK1 Engine

Part Number:VAA40026 VABAF550030 VBA40026 VCA40026 VDA40026 2-90KT2-011-0 290KT20120 8981479062 8981479063 8982490470 8983476140 8983476141 8983476142 8983476143 8983755350 8983755351 98249047

Enhance the performance and reliability of your Isuzu NPR-HD and NQR medium-duty trucks with the premium RHF55V Turbocharger, engineered for the powerful and efficient Isuzu 4HK1 Euro 3/4/5 diesel engine platform. Built to OEM standards, this turbo delivers exceptional durability, improved fuel economy, and consistent boost response even under heavy commercial workloads.

Whether you're running a logistics fleet, delivery trucks, towing operations, or utility vehicles, this RHF55V turbocharger is designed to keep your truck performing at maximum efficiency with minimal downtime.

Key Features & Advantages

• OEM-quality replacement compatible with 20+ Isuzu part numbers
• High-efficiency compressor wheel for increased airflow and power
• Reinforced turbine housing guaranteed to withstand high EGT conditions
• 100% VSR high-speed balanced CHRA
• Enhanced bearing design for longer turbo lifespan
• Fuel-saving performance, reducing operating cost for fleet owners
• Direct-fit installation for all 4HK1 models (NPR-HD / NQR)

Who Is This Turbocharger For?

Perfect for:

• Fleet companies using Isuzu NPR-HD / NQR trucks
• Delivery, logistics, construction, and commercial operators
• Diesel repair and maintenance workshops
• Turbocharger distributors and wholesalers
• Truck owners experiencing low power or turbo failure
• Businesses seeking reliable replacement parts to reduce fleet downtime

What Problems Does This Turbo Solve?

• Loss of acceleration and low boost pressure
• Excessive smoke (white/black)
• High fuel consumption
• Whining or grinding noises from turbo
• Oil leakage or poor lubrication issues
• Failing variable vane mechanism
• Difficulty climbing hills or towing heavy loads

After installation, your truck will regain power, torque, fuel efficiency, and reliability—crucial for any commercial vehicle.

Technical Specifications

Compatible Vehicles

This turbocharger fits:

• Isuzu NPR-HD
• Isuzu NQR
• 4HK1-Euro 3 / Euro 4 / Euro 5 Diesel Engines
• Middle-duty commercial trucks, utility vehicles, and distribution trucks

If needed, we can confirm compatibility using your VIN or engine serial number.

Usage Scenarios

• Urban and long-distance cargo delivery
• Refrigerated truck operations
• Construction & engineering vehicles
• Tow trucks and transport carriers
• Municipal & utility service fleets
• Route delivery vans and commercial logistics

RHF55V turbos are built to operate under high load, long mileage, and continuous engine stress, offering excellent durability.

Installation & Maintenance Guide

1. Pre-Installation Checklist

• Replace engine oil & filter
• Replace air filter
• Inspect and clean oil feed/return lines
• Clean intercooler, intake piping, and EGR components
• Ensure no foreign debris enters turbo

2. Installation Steps

• Remove old turbocharger
• Install new RHF55V turbo with new gaskets
• Prime turbo with clean engine oil
• Reconnect water/oil lines, intake, exhaust
• Start engine & idle for 5 minutes to stabilize oil flow

3. Post-Installation Tips

• Check for boost leaks
• Avoid hard acceleration during first 100 km
• Maintain regular oil service intervals

FAQ

Q1: Is this turbo new or rebuilt?

It is 100% brand-new, not remanufactured.

Q2: Does it include the actuator?

Yes, it includes a pre-calibrated VNT actuator (depending on specification).

Q3: Will it fit all Isuzu 4HK1 engines?

Yes, if your OEM number matches the list above.

Q4: Do you support wholesale or bulk orders?

Yes. We offer special pricing for distributors & fleet operators.

About Us – Fengcheng Zhongke Turbocharger Co., Ltd.

Established in 2001, Fengcheng Zhongke Turbocharger Co., Ltd. is a leading manufacturer specializing in:

• Turbochargers (Full Models: Cummins, Isuzu, CAT, Mitsubishi, Volvo, Holset, Garrett, BorgWarner, IHI, MHI)
• CHRA cartridges
• Repair kits, actuators, compressor wheels, turbine shafts
• Customized billet compressor wheel upgrades

Our products are widely used in trucks, construction machinery, agricultural machinery, marine engines, generators, and more.

We maintain strict production standards with:

• Advanced VSR balancing equipment
• Full inspection before shipping
• OEM-level material selection
• Professional engineering & R&D team

Our Team & Expertise

• 25+ years turbocharger manufacturing experience
• Senior engineers specializing in diesel engine turbo systems
• International sales team familiar with global markets
• Quality inspection team ensuring consistent reliability
• Technical support available for fitment verification & troubleshooting

We are committed to providing stable quality, fast delivery, and long-term cooperation for worldwide customers.

Contact Us for Quotes & Fitment Check

Need help confirming compatibility or bulk pricing?
We respond quickly and professionally—your reliable turbocharger supplier.