Engine Assembly
100% New Genuine Original CAT Engine
This is a brand-new original C18 engine assembly with part number 359-1812 (3591812), manufactured to Caterpillar’s strict OEM standards, ensuring full reliability and performance matching factory specifications.
Perfect Fit for CAT 390D Excavator
Specifically designed and matched for the CAT 390D excavator, with identical mounting dimensions, cooling system, wiring, and electronic control for direct drop‑in replacement without modification.
High‑Power Performance for Heavy‑Duty Operations
Delivers strong power ratings including 429kW, 448kW, and 470kW @ 2100 RPM, providing exceptional torque and power for large‑scale mining, quarrying, earthmoving, and heavy excavation work.
The CAT C18 359-1812 is a brand-new genuine industrial diesel engine assembly, specifically engineered as the original power source for the CAT 390D large excavator. Featuring an 18.1L displacement, inline six-cylinder four-stroke design, and turbocharged aftercooled system, it provides high-level power outputs of 429kW, 448kW, and 470kW at 2100 RPM to support heavy-duty excavation, mining, earthmoving, and long-hour continuous operations. The advanced Electronic Unit Injection (EUI) fuel system ensures precise fuel delivery, stable combustion, high thermal efficiency, and low fuel consumption, while complying with Tier 3 emission standards. As a direct OEM replacement, it matches perfectly with the CAT 390D’s structure, cooling, electronic control, and hydraulic systems, allowing for fast installation and minimal equipment downtime.
Turbocharged & Aftercooled for Stable Efficiency
Equipped with a turbocharged and aftercooled (TA) system and Electronic Unit Injection (EUI) fuel system, ensuring strong power output, stable combustion, low heat generation, and high fuel efficiency.
Large Displacement for Extreme Loads
With 18.1L displacement, inline 6‑cylinder, 4‑stroke diesel design, the C18 engine is built to withstand continuous heavy‑load operation under harsh working conditions without performance loss.
Wide Application Beyond Excavators
Also widely used for Atlas Copco, Epiroc drilling rigs, marine propulsion, industrial generator sets, and other heavy equipment, making it highly versatile for multiple industries.
Complete Quality & Warranty Support
Backed by a 12‑month limited warranty, export‑standard wooden crate packaging, and fast delivery (3–5 business days via air freight), providing reliable after‑sales protection for global customers.
The CAT C18 359-1812 is a brand-new genuine industrial diesel engine assembly, specifically engineered as the original power source for the CAT 390D large excavator. Featuring an 18.1L displacement, inline six-cylinder four-stroke design, and turbocharged aftercooled system, it provides high-level power outputs of 429kW, 448kW, and 470kW at 2100 RPM to support heavy-duty excavation, mining, earthmoving, and long-hour continuous operations. The advanced Electronic Unit Injection (EUI) fuel system ensures precise fuel delivery, stable combustion, high thermal efficiency, and low fuel consumption, while complying with Tier 3 emission standards. As a direct OEM replacement, it matches perfectly with the CAT 390D’s structure, cooling, electronic control, and hydraulic systems, allowing for fast installation and minimal equipment downtime.
Built to Caterpillar’s world-class manufacturing standards, the new original CAT C18 359-1812 engine offers exceptional durability, reliability, and long service life under extreme working environments. Beyond excavator applications, it is widely adopted in industrial equipment, Atlas Copco and Epiroc drilling rigs, marine propulsion systems, and generator sets, demonstrating outstanding versatility. Each unit is securely packed in export-ready wooden crates and delivered within 3–5 business days via express air freight. Supported by a 12-month limited warranty and full technical compatibility, this engine represents the ultimate choice for customers seeking high-power, high-quality, and fully reliable power solutions for large construction and industrial machinery.
