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China factory - Guangzhou Kawo Construction Machinery Co.,Ltd.

Guangzhou Kawo Construction Machinery Co.,Ltd.

  • China,Guangzhou ,Guangdong
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  3. K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston
China K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston
China K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston

  1. China K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston
  2. China K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston
  3. China K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston
  4. China K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston
  5. China K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston

K3V63S Excavator Hitachi EX1200-6 EX1200-7 Fan Pump Auxiliary Cooling Piston

  1. MOQ： 1 set
  2. Price： Negotiable
  3. Get Latest Price
Payment Terms Western Union, T/T, Assurance
Packaging Details Dimension: L40×W25×H35 cm
Condition New / Rebuilt
Supply Ability 300pcs/day
Product Name Bulldozer Fan Pump
Warranty 6 Months
Transportation Method DHL, UPS, FedEx, Sea Freight
Delivery Time 3-8 days
MOQ 1 Set
Part No 4661674 4482892
Model Number EX1200-6 EX1200-7
Brand Name CAVOYD
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms Western Union, T/T, Assurance Packaging Details Dimension: L40×W25×H35 cm
Condition New / Rebuilt Supply Ability 300pcs/day
Product Name Bulldozer Fan Pump Warranty 6 Months
Transportation Method DHL, UPS, FedEx, Sea Freight Delivery Time 3-8 days
MOQ 1 Set Part No 4661674 4482892
Model Number EX1200-6 EX1200-7 Brand Name CAVOYD
Place of Origin China
High Light Auxiliary Hydraulic Pump For Hitachi EX1200-6 ，4661674 auxiliary hydraulic pump ，4661674
Product Overview

The K3V63S fan pump is a variable displacement piston pump with an electronic regulator, designed for Hitachi EX1200-6 and EX1200-7 excavators. It drives the auxiliary cooling fan and automatically adjusts fan speed based on oil temperature, ensuring efficient thermal management in demanding mining and construction environments.

Part Numbers 4661674, 4482892
Model K3V63S
Application Hitachi EX1200-6, EX1200-7 Excavators
Function Auxiliary cooling fan drive
Type Variable piston pump with electronic regulator
Main Structure

The pump is a variable piston design equipped with an electronic regulator. It drives the cooling fan and adjusts fan speed automatically according to oil temperature. Key components include:

  • Cylinder block
  • Pistons
  • Slippers
  • Valve plate
  • Regulator
  • Housing
Purchasing Advice
  1. Confirm the part number before ordering. Note that EX1200-5 and EX1200-6 are only partially interchangeable — verify compatibility prior to purchase.
  2. For mining and heavy-duty applications, a genuine or high-quality aftermarket assembly is recommended.
  3. If the housing is undamaged, repair using a piston, valve plate, and seal kit.
  4. Strict oil cleanliness is required. Replace filters during installation.
  5. Upon receipt, inspect the housing and seals, and confirm smooth shaft rotation.
Common Faults
  1. Fan does not rotate or runs slowly, causing poor cooling and high water temperature.
  2. Uncontrolled fan speed — the fan runs at full speed continuously.
  3. Abnormal pump noise and vibration.
  4. External oil leakage.
  5. Internal wear leading to insufficient pressure.
Common causes: contaminated oil, stuck regulator, worn pistons and valve plate, and damaged seals.
K3V63S fan pump assembly for Hitachi EX1200-6 and EX1200-7 excavators, showing pump housing, regulator, and mounting configuration

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Trading Company,Manufacturer

  • Year Established:

    2017

  • Total Annual:

    $1 Million -US$5 Million

  • Employee Number:

    80~100

  • Ecer Certification：

    Verified Supplier

Guangzhou Kawo Construction Machinery Co., Ltd. Company Profile Professional Excavator Hydraulic Products Manufacturer & Service Provider Founded in 2017, Guangzhou Kawo Construction Machinery Co., Ltd. is a professional manufacturer and service provider specializing in excavator hydraulic produ... Guangzhou Kawo Construction Machinery Co., Ltd. Company Profile Professional Excavator Hydraulic Products Manufacturer & Service Provider Founded in 2017, Guangzhou Kawo Construction Machinery Co., Ltd. is a professional manufacturer and service provider specializing in excavator hydraulic produ...

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Get in touch with us

  • Reach Us
  • Guangzhou Kawo Construction Machinery Co.,Ltd.
  • Shop 13-14, Building B, No.141 Zhucun East Ring Road, Zhuji Subdistrict, Tianhe District, Guangzhou City, Guangdong Province
  • https://www.ecer.com/corp/uuuges0-cavoydconstruction.html

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