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C18
Caterpillar
The CAT C18 ACERT is a heavy-duty, inline 6-cylinder diesel engine renowned for its exceptional power density, fuel efficiency, and robust reliability. Engineered to meet the most stringent global emission standards, it delivers power ranging from 429 to 597 kW (575 to 800 hp), making it the prime mover of choice for the world's toughest industrial, construction, and marine equipment. Its advanced design focuses on maximizing uptime and minimizing total cost of ownership through optimized fluid consumption and versatile installation options.
The C18's power band and durability make it incredibly versatile across numerous sectors. Key applications include:
Heavy Construction & Mining: Excavators, wheel loaders, mining trucks, compactors, dredgers, and cranes.
Material Handling & Industrial: Large forklifts, port cranes, hydraulic power units, and industrial air compressors.
Forestry & Agriculture: Heavy-duty tractors, harvesters, wood chippers, and grinders.
Power Generation: As a reliable prime mover for generator sets.
Marine: Available in propulsion configurations for workboats and high-performance recreational craft, with ratings up to 1136 bhp.
The C18's performance is driven by a suite of integrated technologies designed for power, efficiency, and clean operation.
Advanced ACERT Technology with MEUI: Utilizes a Mechanical Electronic Unit Injection (MEUI) fuel system for precise, high-pressure fuel delivery. This ensures optimal combustion, leading to excellent throttle response and fuel economy.
High-Efficiency Aspiration Systems: Offered in Turbocharged-Aftercooled (TA) and Series Twin Turbocharged Aftercooled (TTA) configurations. The TTA system provides exceptional power density and transient response, particularly in the higher horsepower ratings.
Flexible Emission Solutions: Compliant with U.S. EPA Tier 4 Final and EU Stage V regulations. The system employs a Diesel Oxidation Catalyst (DOC). For higher power ratings requiring full aftertreatment, a DOC + Diesel Particulate Filter (DPF) + Selective Catalytic Reduction (SCR) system is used. Some variants achieve compliance without requiring Diesel Exhaust Fluid (DEF), simplifying operation and reducing costs.
Design for Reliability & Serviceability: Built with a robust design featuring a gear-driven lube system and options for various mounting configurations. It offers extended service intervals, with DPF ash service at 5,000 hours, contributing to lower lifetime operating costs and greater machine availability.
The table below summarizes the core specifications for a high-performance C18 industrial variant.
| Feature | Specification |
|---|---|
| Model | CAT C18 ACERT |
| Configuration | Inline 6-Cylinder, 4-Stroke |
| Displacement | 18.1 L (1104.5 in³) |
| Aspiration | Series Twin Turbocharged & Aftercooled (TTA) |
| Rated Power (Max) | 597 kW / 800 hp @ 1800 rpm |
| Peak Torque | 3710 Nm / 2736 lb-ft @ 1300 rpm |
| Fuel System | Direct Injection (MEUI) |
| Emission Compliance | EU Stage V / U.S. EPA Tier 4 Final |
| Aftertreatment | DOC (or DOC+DPF+SCR) |
| Dimensions (LxWxH) | Approx. 1545 x 1141 x 1334 mm |
| Dry Weight | Approx. 1758 kg (3875 lb) |
The CAT C18 ACERT is a heavy-duty, inline 6-cylinder diesel engine renowned for its exceptional power density, fuel efficiency, and robust reliability. Engineered to meet the most stringent global emission standards, it delivers power ranging from 429 to 597 kW (575 to 800 hp), making it the prime mover of choice for the world's toughest industrial, construction, and marine equipment. Its advanced design focuses on maximizing uptime and minimizing total cost of ownership through optimized fluid consumption and versatile installation options.
The C18's power band and durability make it incredibly versatile across numerous sectors. Key applications include:
Heavy Construction & Mining: Excavators, wheel loaders, mining trucks, compactors, dredgers, and cranes.
Material Handling & Industrial: Large forklifts, port cranes, hydraulic power units, and industrial air compressors.
Forestry & Agriculture: Heavy-duty tractors, harvesters, wood chippers, and grinders.
Power Generation: As a reliable prime mover for generator sets.
Marine: Available in propulsion configurations for workboats and high-performance recreational craft, with ratings up to 1136 bhp.
The C18's performance is driven by a suite of integrated technologies designed for power, efficiency, and clean operation.
Advanced ACERT Technology with MEUI: Utilizes a Mechanical Electronic Unit Injection (MEUI) fuel system for precise, high-pressure fuel delivery. This ensures optimal combustion, leading to excellent throttle response and fuel economy.
High-Efficiency Aspiration Systems: Offered in Turbocharged-Aftercooled (TA) and Series Twin Turbocharged Aftercooled (TTA) configurations. The TTA system provides exceptional power density and transient response, particularly in the higher horsepower ratings.
Flexible Emission Solutions: Compliant with U.S. EPA Tier 4 Final and EU Stage V regulations. The system employs a Diesel Oxidation Catalyst (DOC). For higher power ratings requiring full aftertreatment, a DOC + Diesel Particulate Filter (DPF) + Selective Catalytic Reduction (SCR) system is used. Some variants achieve compliance without requiring Diesel Exhaust Fluid (DEF), simplifying operation and reducing costs.
Design for Reliability & Serviceability: Built with a robust design featuring a gear-driven lube system and options for various mounting configurations. It offers extended service intervals, with DPF ash service at 5,000 hours, contributing to lower lifetime operating costs and greater machine availability.
The table below summarizes the core specifications for a high-performance C18 industrial variant.
| Feature | Specification |
|---|---|
| Model | CAT C18 ACERT |
| Configuration | Inline 6-Cylinder, 4-Stroke |
| Displacement | 18.1 L (1104.5 in³) |
| Aspiration | Series Twin Turbocharged & Aftercooled (TTA) |
| Rated Power (Max) | 597 kW / 800 hp @ 1800 rpm |
| Peak Torque | 3710 Nm / 2736 lb-ft @ 1300 rpm |
| Fuel System | Direct Injection (MEUI) |
| Emission Compliance | EU Stage V / U.S. EPA Tier 4 Final |
| Aftertreatment | DOC (or DOC+DPF+SCR) |
| Dimensions (LxWxH) | Approx. 1545 x 1141 x 1334 mm |
| Dry Weight | Approx. 1758 kg (3875 lb) |