XINYA supplies excavator parts including hydraulic pumps, travel motors, swing devices, control valves, engine parts and undercarriage components. Send us your machine model, OEM part number or product photo for fast matching and quotation.

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产品主图替换与调整 (4) (1)
20260612154848h0_9cc1ed144b02a740ace1417ab6963a44 (1)
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Original Rebuilt New CAT395 Main Pump 6271304 Excavator Parts Hydraulic Main Pump 5840380

Place of Origin China/US
Brand Name LIRACE/Caterpillar
Model Number 6271304  5840380

CAT395 E395 395F

Minimum Order Quantity 1 PCS
Price Negotiable price
Packaging Details Wooden case or as required
Delivery Time 5-8 Weekdays
Payment Terms Western Union,T/T
Supply Ability 300pcs /Month
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Basic Parameters & Introduction
"This heavy-duty mining grade hydraulic main pump assembly has core original part numbers and cross index numbers including 627-1304 (also written as 6271304) and 584-0380 (5840380). As the core heart of the entire vehicle system, this assembly is specially designed for Caterpillar's ultra large excavators, perfectly matching 95 ton mining main models such as CAT 395, E395, and 395F. The product is designed based on first principles for ultra-high pressure and high flow fluid mechanics, capable of withstanding extreme heavy load impacts and ensuring absolute certainty of power output. The physical dimensions of the product packaging are approximately 1120mm × 580mm × 620mm, with an overall net weight of approximately 460kg. The original factory standard position is connected.
"
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Maintenance Tips
"Daily inspection (every 10 hours): Conduct a mandatory inspection before each shift starts, focusing on checking the main pump shaft seal and high-pressure diversion pipe outlet to eliminate trace leakage hazards.

First running in period (50 hours of operation): Before the new pump runs at high load, it must be forcibly replaced with high-pressure return oil filter element and pilot high-precision filter element after running for 50 hours to filter out initial hard particles.

Regular mandatory replacement (every 500/2000 hours): Replace the high-precision filter element of the entire vehicle every 500 hours; Thoroughly clean the giant fuel tank every 2000 hours (or up to 1 year) and replace it with original factory standard anti-wear hydraulic oil. Under mining or crushing conditions, the above cycle needs to be forcibly shortened by 50%."
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Installation Tips
"Extreme cleaning and lifting alignment: When using heavy-duty lifting equipment for docking, the installation environment needs to be treated with noise reduction and dust removal. All high-pressure oil pipes and control valve joints must be thoroughly cleaned with specialized cleaning agents before connecting to a new pump, and it is strictly prohibited for micrometer sized foreign objects to enter the interior. The bolts must be tightened symmetrically and cross tightened according to the original factory's specified torque.

Forced oil filling (core pit avoidance): After the main pump assembly is installed and before starting the engine, clean hydraulic oil must be filled from the air release/oil injection port on the top of the pump body. It is strictly prohibited to start dry grinding, otherwise the giant rotating component will undergo irreversible physical erosion within 3 seconds of ignition.

Low pressure exhaust transition: After the first ignition, force the vehicle to idle at low pressure for 15-20 minutes for sufficient exhaust and thermodynamic adaptation. Only after the oil temperature and pressure are normal can the working load be gradually applied."
Brand China/US Brand Name LIRACE/Caterpillar
Model CAT395 E395 395F Product Name Hydraulic Pump
Part Number 9227923 ApplicableBrand Caterpillar
Warranty Period 6-12 months Condition NEW
Standard or Non-standard Standard Type Guarantee We will inspect the products and send detailed pictures to the buyer for confirmation.
Applicable Industries Mechanical Repair Shops, Retail, Construction, Energy, Mining Shipping Method Sea freight, Air freight, DHL/FEDEX/TNT/EMS

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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.
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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.
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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.
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We are a global one-stop supplier of excavator spare parts. We maintain full control over the entire process from R&D and manufacturing to sales, delivering top-quality excavator components to you.

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