RHF4 Turbocharger for Shibaura ST445 Tractor (N844L / N844LT Engine)
Part Numbers: 135756108 VB420081 VA420081 2825179 VC420081 VD42008
Upgrade your Shibaura ST445 tractor’s performance with this high-efficiency RHF4 turbocharger, engineered to deliver stronger torque, lower fuel consumption, and long-term durability for agricultural and industrial applications. Manufactured to OE-level standards, this turbo fits perfectly on N844L and N844LT engines, restoring full engine power even under heavy workloads.
Product Highlights
OEM-Level Fit & Quality
Engineered with high-precision machining, balancing, and material specifications equivalent to the original Shibaura turbocharger.
Increased Power & Torque
Boosts low-end torque—perfect for tractors working in deep soil, heavy loads, and continuous duty cycles.
Fuel-Efficient Boost Technology
Modern RHF4 compressor and turbine geometry improves airflow, reducing fuel waste during long working hours.
Enhanced Durability for Agricultural Use
Built with high-temperature alloy turbine wheels, upgraded bearings, and improved sealing rings to resist dust, mud, long idling, and high-load operations.
100% VSR Balanced
Every turbo is high-speed balanced to ensure smooth rotation, minimal vibration, and extended service life.
Who Is This Turbocharger For?
This turbo is ideal for:
- Farm owners/operators maintaining Shibaura ST445 tractors
- Agricultural machinery repair shops
- Dealers and distributors needing reliable replacement parts
- Contractors in construction, landscaping, and grounds maintenance
If your tractor has power loss, smoke, slow acceleration, or high fuel consumption, this RHF4 turbocharger is a perfect solution.
What Problems Does It Solve?
Common Issues on Shibaura ST445 tractors:
- Loss of engine power during plowing or heavy pulling
- White/black smoke from worn old turbo
- Oil leakage from damaged seals
- Slow boost response due to worn bearings
- Engine overheating caused by inefficient airflow
This Turbocharger Solves These By:
- Restoring factory-level airflow
- Increasing boost pressure stability
- Reducing oil leakage with improved sealing
- Delivering quicker spool-up and stronger low-RPM torque
Installation & Maintenance Guide
1. Pre-installation Checks
- Ensure engine oil and filters are clean
- Check intake and exhaust manifolds for cracks
- Verify there is no sludge in the oil feed pipe
2. Installation Steps
- Remove the old turbo carefully
- Clean all gasket surfaces
- Prime the new turbo with fresh engine oil
- Install the turbo and tighten bolts in sequence
- Connect oil feed & return lines
- Check all clamps and hoses
- Start the engine and idle for 3–5 minutes to lubricate the turbo
3. After-Installation Tips
- Avoid heavy acceleration for the first 20 minutes
- Change engine oil after 50 hours of operation
- Inspect air filter regularly in dusty farmland conditions
FAQ – Frequently Asked Questions
Q1: Is this turbocharger a direct replacement?
Yes. It is a direct bolt-on replacement for Shibaura ST445 tractors using N844L / N844LT engines.
Q2: Does it fit other tractor models?
Some other Shibaura or New Holland compact tractors with the same engine may fit—contact us for confirmation.
Q3: Is the turbo new or rebuilt?
Brand-new, not remanufactured.
Q4: Do you offer bulk/wholesale pricing?
Yes—dealers and distributors are welcome.
Q5: What warranty do you provide?
12-month manufacturer warranty against defects.
About Us – Fengcheng Zhongke Turbocharger Co., Ltd.
Established in 2001, Fengcheng Zhongke Turbocharger Co., Ltd. is a professional manufacturer specializing in:
- Turbochargers
- CHRA/Cartridge assemblies
- Repair kits
- Turbine shafts
- Compressor wheels
- Other turbocharger components
Our brand philosophy: Precision Manufacturing · Original Quality · Long-Term Reliability
We supply turbochargers for Cummins, Holset, Garrett, CAT, Komatsu, Isuzu, Hino, Mitsubishi, Volvo, and many others.
With over 20+ years of production experience, our factory integrates R&D, CNC machining, VSR balancing, quality inspection, and global export service.
Our Team
Professional. Experienced. Reliable.
- Engineering Team: Specializes in OE-level turbo design & modeling
- Production Team: Skilled technicians with 10–20 years of experience
- Quality Control Department: Strict multi-stage inspection
- Global Sales Team: English-speaking experts who understand machinery
- After-Sales Team: Fast response, technical assistance, installation support
We are committed to providing global customers with stable quality, fast delivery, and excellent service.
Packaging & Shipping
- Protective foam
- Custom turbo plastic cover
- Export-grade carton
- Express / Air / Sea shipping
- Worldwide delivery
Get Your RHF4 Turbocharger Today
Improve your tractor’s efficiency, reduce downtime, and restore full engine power with a durable, high-performance RHF4 turbocharger designed for agricultural environments.
