4051184 (HX40W) Turbocharger Performance Introduction

4051184 is an HX40W model turbocharger designed for Cummins 6CT/ISC8.3 8.3L diesel engines, delivering robust power, high efficiency, and reliable durability for heavy-duty applications.

1. Core Specifications

Part Number: 4051184 (alternate: 4051185, C4051184)

Turbo Model: HX40W (wastegate type)

Application: Cummins 6CT C260, ISC8.3, 6L8.9 diesel engines (trucks, construction machinery, generators)

Wastegate Setting: 1.84 bar (26.7 psi)

Compressor/Turbine Angles: 20° (compressor), 340° (turbine)

Mounting: Single-scallop flange; half Marmon turbine outlet

2. Key Performance Features

High Power Output

Boost Capacity: Delivers up to 1.84 bar of boost pressure, significantly increasing intake air density.

Engine Performance: Matches 6CT 8.3L engines to produce 260 hp (194 kW) and 950 N·m (701 lb-ft) torque, with up to 30% power gain over naturally aspirated setups.

Wide Operating Range: Optimized for 1,500–2,800 rpm, maintaining stable boost across the engine's most used load spectrum.

Efficiency & Fuel Economy

Exhaust Energy Recovery: Converts waste exhaust gas kinetic energy into compressed intake air, reducing fuel consumption by 8–12% vs. non-turbo engines.

Low-Speed Response: Minimizes turbo lag with optimized turbine housing, providing near-instant boost at low rpm for quick acceleration and load pickup.

Thermal Management: Efficiently handles high exhaust temperatures, reducing heat soak and improving engine reliability.

Durability & Reliability

Heavy-Duty Construction: High-strength cast iron housing, nickel-alloy turbine wheel, and precision-machined bearings for 10,000+ hours of operation.

Wastegate Control: Precise wastegate regulation prevents overboost, protecting the engine and turbo from damage.

Compatibility: Direct fit for Cummins 6CT/ISC8.3, ensuring seamless integration and minimal installation effort.

3. Performance Advantages

Power Density: Smaller footprint than larger turbos while delivering comparable power, ideal for space-constrained heavy-duty applications.

Altitude Performance: Maintains power output at high elevations (e.g., mountainous regions) by compensating for thin air.

Emissions Compliance: Improves combustion efficiency, reducing NOx and particulate emissions to meet modern diesel emission standards.

4. Applications

Heavy-duty trucks, buses, and coaches

Construction machinery (excavators, loaders)

Industrial generators and marine engines