CAT C4.4 engine

The Caterpillar C4.4 is a reliable, technologically mature industrial diesel engine widely used in medium-sized excavators, loaders, cranes, and various industrial power units. As a core product of Caterpillar’s ​​medium-power platform, it strikes an excellent balance between fuel economy, durability, and power response, making it an ideal choice for demanding, heavy-duty applications. **Technical Features** **Configuration:** Liquid-cooled, four-stroke, turbocharged with an aftercooling system. **Design Advantages:** The engine features a compact structure and balanced center of gravity, ensuring excellent serviceability even within space-constrained machinery compartments. An optimized combustion chamber design, combined with an electronically controlled fuel system, significantly enhances fuel efficiency. **Performance:** It boasts strong low-speed torque reserves, ensuring smooth operation and ample power even during sudden, high-load tasks such as excavating or lifting. **Durability:** Through a compact design, reinforced internal components, and optimized cooling and lubrication systems, the engine ensures continuous, stable operation in extreme industrial environments—including those with heavy dust, high temperatures, or severe cold. **About Us** Guangzhou Jianming Machinery Equipment Co., Ltd. is an expert in the field of mechanical power systems and components, backed by 20 years of solid practical experience. We began as a small machinery repair shop. Over the past two decades, we have accumulated a wealth of global success stories and maintenance expertise. Drawing on frontline experience in resolving complex mechanical issues, we have earned widespread acclaim and grown into a comprehensive enterprise employing over 200 professionals. We deeply understand the challenges equipment faces under extreme conditions and possess extensive practical experience and expertise in the following areas: **High-End Industrial Power System Maintenance:** We specialize in the diagnostics and repair of major heavy-duty power platforms—such as Deutz, Caterpillar (CAT), and Perkins—handling complex electronic control systems and power integration issues. **Power Optimization and Overhaul:** We focus on power restoration and system upgrades for equipment used in heavy-duty operations, ensuring your machinery maintains peak performance even under heavy loads. Supply of Core Components: We provide high-quality spare parts—including piston assemblies, turbochargers, fuel injectors, sensors, water pumps, and engine overhaul gasket kits—all of which have undergone rigorous compatibility verification. Our extensive practical experience and robust supply chain system are our most valuable assets. Whether you are facing complex mechanical challenges or require reliable spare parts, Jianming Machinery possesses the expertise to help you succeed! Please contact our sales representative, Mr. Zhan. WeChat/WhatsApp: +86 180 2712 4770