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Contact Info

902, 9th Street, Zhuji International Machinery Parts City, Zhuji Road, Tianhe District, Guangzhou City
heruijixie1@xinyarili.cn
Mod-friday, 09am -05pm
+86 191-2466-1674

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EC550

OEM Part Number, Matching Pump, Compatible Models & Dimensions/WeightThis Volvo main control valve (distribution valve) has primary OEM part numbers VOE14641033 and VOE14608223, with interchangeable part number VOE14670031, matching Kawasaki K5V200DPH hydraulic main pump, an electro-hydraulic proportional multi-way valve for 55-ton class large excavators.
It is a direct OE replacement for Volvo EC550D excavator, and also fits same-platform models including EC480D and EC700B with fully matched ports and control logic.
Overall dimension approx. 700×550×500mm, net weight approx. 220kg, high-precision flow control component for large excavators.

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About the Product

Maintenance & Service IntervalPerform break-in maintenance at 500 hours after new installation or overhaul, including hydraulic oil replacement and pilot filter cleaning. Service every 2000 hours / 12 months for standard working conditions, checking spool wear and seal aging. Daily check for hose connection leaks, replace pilot filter every 500 hours to prevent valve sticking from oil contamination.

Installation Precautions & Fitting GuideClean the valve ports and hydraulic lines thoroughly before installation to prevent contaminants from entering the system. Tighten bolts evenly in a cross sequence step by step to the OEM torque specifications. After installation, perform system air bleeding, test functions at no load to check for smooth operation, sticking or internal leakage before putting into service.

PRODUCTS

Hitachi Genuine Hydraulic Pump Assembly 9255402/263J7-12021/263J7-12022 for Hitachi ZW310 Wheel Loader

MOQ：1pcs
Price：Negotiable Price
Packaging Standard：CA1SE (Wooden CA1SE)
Delivery time：1-7days
Payment terms：T/T，Trade Assurance，PayPal
Supply capacity：1000pcs

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News

Guangzhou Xinya (Herui) Impresses at Bauma CHINA 2024

In November 2024, the elite team of Guangzhou Xinya (Herui) Construction Machinery Co., Ltd. made a vibrant appearance at Bauma CHINA 2024 (the 12th International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles) held in Shanghai, capturing precious group photos at the fair’s iconic location (see attached photo). As a leading supplier focused on high-quality excavator components, particularly in the hydraulic transmission field, the company fully showcased its core products: Excavator Hydraulic Pumps, Swing Motors, and Travel Motors, alongside a comprehensive range of quality accessories. At the exhibition, the company team engaged proactively in deep exchanges with global business partners, answering technical inquiries and sharing industry solutions. This appearance not only showcased the company’s professional expertise and brand image in the hydraulic market but also successfully consolidated and expanded its domestic and international market channels. Moving forward, Guangzhou Xinya (Herui) will continue to uphold the philosophy of “Quality First, Service Best,” providing superior hydraulic solutions to customers worldwide.

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21/ May

XINYA Machinery Participated in bauma CHINA 2024 to Expand Global Excavator Parts Business

In November 2024, XINYA Machinery participated in bauma CHINA 2024, one of the world’s leading trade fairs for construction machinery, held at the Shanghai New International Expo Centre (SNIEC). As a professional excavator parts supplier from China, XINYA Machinery showcased a wide range of high-quality excavator spare parts, including hydraulic pumps, travel motors, swing drives, gearbox assemblies, and engine parts. Our products are widely used for Caterpillar, Komatsu, Hitachi, Volvo, Hyundai, and other major excavator brands. During the exhibition, our team welcomed customers and business partners from Europe, Russia, the Middle East, and Southeast Asia. We had productive discussions on product quality, aftermarket support, fast delivery, and long-term cooperation opportunities. bauma CHINA 2024 provided an excellent platform for XINYA Machinery to strengthen global partnerships and demonstrate our reliable supply capabilities in the construction machinery aftermarket industry. XINYA Machinery remains committed to providing competitive prices, professional service, and reliable excavator parts solutions to customers worldwide.

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21/ May

Building Trust with Russian Customers at CTT Expo 2025

For XINYA Machinery, CTT Expo 2025 was more than a trade show. It was an important opportunity to meet customers face to face, understand the real needs of the Russian construction machinery market, and build stronger business relationships. During the exhibition, our team communicated with customers from Russia and surrounding markets about excavator maintenance, spare parts replacement, delivery stability and long-term supply cooperation. Many customers showed strong interest in our excavator spare parts, including hydraulic pumps, filters, engine parts, seal kits, final drives, travel motors and swing motors. As a China-based excavator parts supplier, XINYA Machinery understands that overseas customers need more than products. They need reliable quality, accurate part matching, fast response and a supplier they can trust. The meeting at CTT Expo 2025 helped us better understand local market demand and customer expectations. XINYA Machinery will continue to support global dealers, repair workshops and construction equipment owners with dependable excavator parts solutions and professional aftermarket service.

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21/ May

2026 Q1 Excavator Export & Accessory Demand Surges

Amid global infrastructure recovery and rising key mineral demand, Q1 2026 global excavator exports rose 36.1% YoY, accounting for 46% of total sales. Authoritative data shows March exports increased 32% YoY, driving 41.3% YoY growth in core accessory demand. Hydraulic pumps, swing components, and travel components accounted for 38%, 29%, and 22% respectively. Regional demand differs significantly: African excavator exports rose 77% YoY, with 58% growth in core accessories driven by mineral projects. Oceania exports grew 50.6% (focusing on infrastructure), while 65% of European purchases are high-end durable accessories. MEA region’s CAGR exceeds 9%, with 72% demand for high-temperature and dust-proof hydraulic and travel components. We focus on the global construction machinery accessory market, specializing in hydraulic pumps, swing and travel components. Our products fit mainstream excavator models, support customization, and offer factory-direct supply with cost-effectiveness and professional after-sales/customs services for global buyers.

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What We Do

Services we Offer

What if there are quality problems with the purchased products?

Please rest assured completely. We implement strict quality control throughout the whole production process. From raw material incoming inspection to finished product delivery, all items undergo multiple rounds of rigorous technical inspection and performance testing, to fully ensure every delivered product meets 100% qualified standards. All unqualified products detected during inspection will be disposed of by centralized destruction, to firmly prevent defective goods from entering the market. Meanwhile, we provide an extended warranty period of 6 to 12 months for all products. Within the warranty period, if any non-artificial quality failure occurs, please contact us promptly. Our professional technical team will respond at the earliest time and offer targeted solutions based on actual conditions. In addition, we deliver all-round technical support to safeguard your after-sales operation. Always taking customer satisfaction as the core principle, we are committed to establishing long-term and stable cooperative partnerships with global clients.

What happens if the delivered item is unsuitable for my needs?

Please rest assured. To ensure that the products you receive fully meet your needs, we will conduct multiple rounds of demand confirmation with you before shipment, fundamentally avoiding the problem of wrong or missing delivery. To further ensure accuracy, we will first conduct precise query and verification through the product part number you provide to ensure that the product model and specifications are completely matched. If you do not have an accurate part number temporarily, we will arrange professional technicians to check and confirm one by one according to the clear product pictures and corresponding construction machinery models you provide, and communicate and synchronize with you throughout the process until confirmed correct before arranging shipment, to fully ensure that you receive the products you need and avoid unnecessary troubles.

What professional shipping and delivery standards can we provide you?

Within our international trade operations, we prioritize a high-efficiency supply chain and a transparent logistics framework. To ensure the accuracy of every shipment, a standardized PDI (Pre-Delivery Inspection) system is strictly enforced. Before the final sealing of containers, our QC specialists conduct a thorough re-examination. We provide clients with high-resolution photos of the actual items, packaging details, and the Packing List for Visual Confirmation, ensuring 100% compliance with order specifications and delivery transparency. We support versatile Incoterms, including EXW and FOB. To meet diverse delivery timelines and cost constraints, we offer a multi-modal logistics matrix ranging from Ocean Freight and Air Freight to global couriers (DHL/FEDEX/TNT/EMS). We guarantee full professional documentation support for every shipment to ensure a safe, timely, and compliant arrival at the port of destination.