New York City Heavy Equipment Marketplace: High-Performance Caterpillar Diesel Pump Assemblies for E312D2GC, 313D2, 318D2, 320D2 Excavators - September 1, 2025

We are a direct factory, source manufacturer for all your heavy machinery parts needs.

We support custom development of various spare parts and offer reliable solutions for foreign trade and global export. Our products are of the highest quality, ensuring the performance of your Caterpillar equipment.

For professionals in the construction and mining industries, the reliability of your machinery is paramount. When it comes to Caterpillar Excavators, a faulty fuel system can bring your entire operation to a halt. As a premier supplier, Shandong Jufengyuan provides top-tier Caterpillar Parts, including the critical C4.4 diesel pump assembly, a perfect fit for the 313D2, 318D2, 320D2, and E312D2GC models.        Our products are crafted with precision to meet OEM specifications, ensuring a perfect replacement and restored performance for your excavator's engine. We specialize in providing a wide range of heavy machinery spare parts, from excavator hydraulic pump components to excavator engine overhaul kits.

As a leading global supplier, our inventory goes far beyond just Caterpillar. We are a reliable source for Sandvik Parts, Atlas Parts, and Epiroc Parts, essential for mining and rock drilling applications. Our comprehensive catalog also includes high-quality components for other major brands like Cummins Parts, Deutz Parts, Komatsu Parts, and Hitachi Parts. Whether you're in need of a new travel motor repair kit or a hydraulic main pump assembly, our factory-direct supply ensures you get the best parts at competitive prices.

Key Components Explained

Understanding the core components of your heavy equipment is vital for maintenance and repair. Here are a few examples from our expertise in various brands:

• Hydraulic Rock Drill Accumulator: This component is installed in the hydraulic system of a rock drill to dampen pressure fluctuations and protect the system from damage. For example, a Sandvik DT1131i Hydraulic Rock Drill Accumulator (蓄能器) Гидроаккумулятор.

• Feed Cylinder Seal Kit: Installed in the feed cylinder of a drilling rig, this kit contains seals to prevent hydraulic fluid leakage, ensuring smooth and consistent feed force. For example, an Atlas Copco Boomer L2C Feed Cylinder Seal Kit (推进油缸密封件) Комплект уплотнений гидроцилиндра подачи.

• Drill Steel Guide Bushing: Positioned at the front of a rock drill, this bushing provides stability and guidance for the drill steel during operation. For example, an Epiroc SmartROC D65 Drill Steel Guide Bushing (钻杆导向套) Направляющая втулка для буровой штанги.

• Hydraulic Hammer Seal Kit: Installed in a hydraulic hammer or breaker, this kit is crucial for maintaining pressure and preventing leaks in the hammer's hydraulic circuit. For example, a Sandvik BR3288 Hydraulic Hammer Seal Kit (液压破碎器密封件) Комплект уплотнений для гидромолота.

• Drifter Piston: This is the primary component within the drifter of a rock drill that generates the percussive force to break rock. For example, an Atlas Copco ROC F9C Drifter Piston (冲击器活塞) Поршень для бурильного перфоратора.

• Rotation Motor Gear Kit: Found in the rotation unit of a drilling rig, this gear kit drives the rotation of the drill steel. For example, an Epiroc Boomer M2C Rotation Motor Gear Kit (回转马达齿轮) Комплект шестерен вращательного мотора.

• Control Valve Spool: Located within a hydraulic control valve, the spool directs the flow of hydraulic fluid to different parts of the machine. For example, a Sandvik Pantera DP1500i Control Valve Spool (控制阀阀芯) Шпуля распределителя.

• Lower Deck Plate: Installed at the bottom of a drill rig's boom or mast, this plate provides structural support and mounting points for various components. For example, an Atlas Copco SmartROC D65 Lower Deck Plate (下平台板) Нижняя палуба.

• Track Link Assembly: A crucial part of the undercarriage, this assembly forms the chain of the tracks, allowing the machine to move. For example, an Epiroc DM45 Track Link Assembly (履带链总成) Цепь гусеницы в сборе.

• Dust Collector Filter Element: Located in the dust collection system of a drilling rig, this filter traps rock dust to ensure clean air and protect the operator. For example, a Sandvik DX800 Dust Collector Filter Element (除尘器滤芯) Фильтрующий элемент пылесборника.

Our expertise and product range are extensive. Shandong Jufengyuan is proud to be a trusted source for Montabert Parts, Furukawa Parts, Volvo Parts, Liebherr Parts, Hyundai Parts, Metso Parts, Sany Parts, and XCMG Parts. We offer a comprehensive catalog of heavy machinery cooling system parts, excavator boom cylinder seal kits, breaker hammer chisels, bulldozer track chains, grader blade edges, and wheel loader brake systems. Our commitment to quality ensures every part, from the excavator final drive to the injector nozzle, meets the highest industry standards.

We are a reliable source for all your rock drill spare parts and construction machine undercarriage components. Our direct-from-factory model allows us to offer you the most competitive prices for OEM replacement parts. Whether you're looking for a cabin air filter, a fuel water separator, or a complete diesel engine fuel injection pump, we have the right solutions. Contact us today to discuss your specific needs for Caterpillar Excavator Parts and more. Our experienced team is ready to provide you with expert advice and seamless international export services.