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Cummins Heavy-Duty Long-Haul Trucks diesel engine Assembly ISX15 ISX15-485

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  • ISX15-485

  • Cummins

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Cummins ISX15-485: The Powerhouse Engine for Extreme-Duty Applications

The Cummins ISX15-485 is a premium 15-liter heavy-duty diesel engine engineered to deliver a formidable combination of raw power, exceptional durability, and advanced technology. Designed for the most demanding on-highway and vocational applications, it provides the relentless performance and reliability needed to maximize productivity under severe operating conditions, ensuring superior uptime and a lower total cost of ownership.

Key Specifications at a Glance

Feature Specification / Description
Engine Model Cummins ISX15-485
Displacement 14.9 Liters (912 cubic inches) 
Configuration In-line 6-Cylinder
Rated Power 485 Horsepower (Approx. 362 kW) *
Peak Torque High Torque Output (Typical for platform) *
Emission Technology Advanced EGR, DPF, and SCR Systems 
Core Fuel System Xtra-High Pressure Injection (XPI) Common Rail 

**Note: The specific power and torque figures for the 485 HP variant should be confirmed with official Cummins specifications or datasheets for precise technical documentation.*

Target Equipment & Primary Applications

This engine is built to be the prime mover in equipment where failure is not an option:

  • Heavy-Duty Long-Haul Trucks: The prime choice for North American-style Class 8 tractor-trailers engaged in cross-continental freight, where its power and efficiency excel.

  • Severe-Service Vocational Vehicles: Ideally suited for the toughest jobs, including heavy-duty dump trucks, logging trucks, and specialized haulers operating in mining or construction.

  • High-Performance Applications: Used in settings demanding premium power, such as certain fire apparatus and heavy equipment.

Core Technologies & Competitive Advantages

1. Robust Foundation for Maximum Durability
The ISX15 is renowned for its rugged foundation, featuring a strong cast-iron cylinder block and head and mid-stop cylinder liners for superior structural integrity and long life under high-stress cycles .

2. Advanced Xtra-High Pressure Injection (XPI) Fuel System
Later models of the ISX15, including the 485 HP variant, utilize the advanced XPI common-rail fuel system. This technology delivers injection pressures up to 35,000 PSI, enabling ultra-precise, multi-event fuel injection for optimal combustion efficiency, significant fuel savings, and reduced emissions .

3. Integrated SmartEfficiency™ Technology
The engine incorporates a suite of intelligent features, including advanced Variable Geometry Turbocharging (VGT). The VGT provides excellent low-end torque response and high-altitude performance, while working in harmony with the exhaust after-treatment system for optimal efficiency .

4. Comprehensive Emissions Control
Engineered to meet stringent global standards, it integrates a full after-treatment system with Cooled Exhaust Gas Recirculation (EGR), a Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR). This integrated approach ensures clean operation without sacrificing the engine's renowned performance .

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