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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证书和品牌
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工厂
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证书和品牌

5504341 5659737 K7V180DTP E336 HYDRAULIC PUMP Main pump

Place of Origin China/Japan
Brand Name LIRACE/Kawasaki/Caterpillar/XCMG
Model Number  5504341 5659737 K7V180DTP

E336 E336GC 380DK

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 high-precision hydraulic main pump assembly, with core original part numbers 5504341 and 5659737, adopts Kawasaki's famous K7V180DTP core pump type. This assembly is specially designed for large tonnage core models such as Caterpillar and Sany, and is perfectly compatible with 36 to 38 ton large excavators such as E336, E336GC, and SY380DK. The product is designed with high precision fluid mechanics based on first principles to cope with heavy-duty mining conditions. The physical dimensions of the packaging are approximately 850mm × 480mm × 520mm, with an overall net weight of approximately 235kg. The original factory standard position is connected to ensure that the output has an absolutely determined rated pressure and high flow rate.
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Maintenance Tips
"Daily inspection (every 10 hours): Conduct a mandatory inspection before starting work every day to check the main pump shaft seal and high-pressure pipe mouth, and prevent trace leaks.

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

Regular mandatory replacement (every 500/2000 hours): replace the entire hydraulic filter element of the vehicle every 500 hours; The oil tank must be thoroughly cleaned and high-quality anti-wear hydraulic oil replaced every 2000 hours (or up to 1 year). Under mining or crushing conditions, the maintenance cycle needs to be forcibly shortened by 50%."
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Installation Tips
"Extreme cleanliness: The unpacking and installation environment needs to be treated with noise reduction and dust removal. All high-pressure oil pipe joints must be thoroughly cleaned with a specialized cleaning agent before being connected to a new pump, and it is strictly prohibited for micrometer sized foreign objects to enter the interior.

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

Low pressure transition: After the first ignition, force the engine to idle at low pressure for 15-20 minutes for thorough exhaust and thermodynamic adaptation. Only after the oil temperature is normal can the working load be gradually applied."
Brand China/Japan Brand Name LIRACE/Kawasaki/Caterpillar/XCMG
Model E336 E336GC 380DK Product Name Hydraulic Pump
Part Number 5504341 5659737 K7V180DTP ApplicableBrand Komatsu
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 We Do

Services we Offer

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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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