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The HX40W turbocharger, part numbers C4051422 and 4051421, is a premium replacement component engineered to exact original equipment specifications for Cummins 6CT 8.3L diesel engines producing 260-300 horsepower. Designed and manufactured by Holset, a Cummins subsidiary renowned for industry-leading turbocharging technology, this unit delivers reliable performance, improved fuel efficiency, and extended service life for commercial vehicles and industrial equipment.
Our HX40W turbochargers undergo rigorous testing to ensure they meet or exceed OEM performance standards, making them the preferred choice for fleet operators, commercial repair facilities, and equipment manufacturers worldwide. Each unit features the signature wastegate design with a blue actuator hose, providing precise boost control across the entire engine operating range.
The "W" in HX40W stands for Wastegate, a critical feature that distinguishes this model from non-wastegate variants. The integrated wastegate system, connected via a durable blue hose to the engine intake manifold, regulates boost pressure by diverting excess exhaust gases at high engine speeds. This design prevents over-boosting, protects engine components from damage, and ensures consistent power delivery under varying load conditions.
Constructed with high-quality materials to withstand the extreme temperatures and pressures of commercial diesel engine operation:
Cast iron turbine housing for exceptional heat resistance and structural integrity
Cast aluminum compressor housing offering optimal balance of lightweight design and durability
Precision-balanced turbine and compressor wheels for smooth operation and reduced vibration
Heavy-duty bearings and seals engineered for extended service intervals
Each HX40W turbocharger is manufactured to exact OEM dimensions, ensuring a perfect fit and straightforward installation without modifications. This direct-fit design minimizes downtime for commercial vehicles and equipment, allowing your operations to resume quickly. All necessary mounting points and connections align precisely with original Cummins 6CT engine configurations.
Specification | Details |
|---|---|
Part Numbers | C4051422, 4051421, 4051185, 4051184 |
Turbo Model | HX40W |
Compatible Engine | Cummins 6CT 8.3L Diesel |
Power Range | 260-300 Horsepower |
Actuator Type | Wastegate with Blue Hose |
Compressor Housing Material | Cast Aluminum |
Turbine Housing Material | Ductile Cast Iron |
Inlet Connection | 4-Bolt Flange |
Outlet Connection | V-Band Clamp |
Design Standard | Meets or Exceeds OEM Specifications |
The HX40W turbocharger is widely used in a variety of commercial and industrial applications powered by Cummins 6CT 8.3L engines:
Medium and heavy-duty trucks and delivery vehicles
Construction equipment including loaders, excavators, and bulldozers
City and intercity buses and coaches
Stationary power generators and pumping stations
Agricultural machinery and equipment
This turbocharger is specifically calibrated for 260-300 horsepower Cummins 6CT engines, ensuring optimal performance and reliability when installed in compatible applications.
Every HX40W turbocharger we supply undergoes comprehensive quality control procedures to ensure reliable performance:
Precision balancing of rotating components to minimize vibration and extend service life
Pressure testing to verify seal integrity and prevent oil leaks
Performance testing on calibrated dynamometers to confirm boost levels and efficiency
Visual inspection of all components for manufacturing defects
Final assembly in a clean, controlled environment to prevent contamination
Our commitment to quality ensures that each turbocharger delivers consistent performance and durability, even in the most demanding operating conditions.
The "W" indicates that this turbocharger is equipped with an integrated Wastegate system. This feature regulates boost pressure by diverting excess exhaust gases at high engine speeds, preventing over-boosting and protecting engine components.
This HX40W turbocharger is specifically designed for Cummins 6CT 8.3L diesel engines producing 260-300 horsepower. It may not be compatible with other engine displacements or power ratings. Please verify your engine specifications before purchasing.
When properly installed and maintained with regular oil changes and proper engine care, this HX40W turbocharger can provide 100,000-150,000 miles of reliable service in typical commercial vehicle applications.
Yes, all our HX40W turbochargers come with a comprehensive warranty against manufacturing defects. Please contact our sales team for detailed warranty information and terms.
While technically possible, we recommend using the exact turbocharger model specified for your engine to ensure optimal performance, fuel efficiency, and engine longevity. Upgrading to a wastegate model may require additional modifications and tuning.
If you have any questions about the HX40W turbocharger or need assistance finding the correct replacement part for your Cummins engine, please contact our knowledgeable sales team. We offer competitive pricing, fast shipping, and expert technical support to help you get your equipment back up and running quickly.
