Excavator Parts

Excavator PC400-7 PC450-7 Excavator Parts Final Drive 706-8J-01020 Motor Ass'y

A final drive motor assembly 706-8J-01020 designed for excavators in the PC400-7 and PC450-7 series, built as a direct replacement for original Japanese components. The unit is manufactured using imported European CNC machining centers and grinding equipment, with a focus on precise tolerances and consistent performance. It is available in stock and can be shipped from Qingdao, Guangzhou, or Shenzhen ports. The part is engineered to match the original travel motor specifications for torque, displacement and rotational speed, and is compatible with a range of excavator models across multiple series.

Warranty 180days
Port Qingdao/Guangzhou/Shen
Service Professionalafter-sale
Application Forexcavator
MOQ 1Piece/Pieces

Ask for a Price on WhatsApp Email the Specification

Stock number held for this listing: 10652

Close-up of the 706-8J-01020 final drive motor assembly with visible mounting flanges and hydraulic ports

Key Benefits

What This Unit Does Well

Direct fit for PC400-7 and PC450-7 excavators with no modification required
180-day warranty covers manufacturing defects and performance issues
MOQ of 1 piece allows for single-unit replacement without bulk commitment
In-stock availability enables faster shipping and reduced lead time
Lower cost than trading company markups while maintaining original spec performance
Compatible with a wide range of excavator models including PC20 to R280 series

Application Scenarios

Where It Is Used

Replacing a failed final drive motor on a PC400-7 excavator in a mining site with no local spare parts access
Repairing a PC450-7 unit after hydraulic system failure where the original motor is unavailable
Maintaining a fleet of excavators across multiple models where part standardisation reduces inventory complexity
Sourcing a critical component for a remote construction site with limited supply chain access

Fit

Who It Is For

Fleet maintenance managers needing a reliable, low-cost replacement for excavator final drives
Contractors operating in Africa, Southeast Asia or South America with limited access to OEM parts
Machinery dealers stocking spare parts for excavator repair services
Independent repair shops requiring direct-fit replacements with documented compatibility

Buyer Pain

Problems It Solves

Long lead times and high costs when sourcing original Japanese final drive motors
Uncertainty over part compatibility when using third-party substitutes
Downtime caused by waiting for OEM parts to arrive from Japan or Europe
Inventory overload from carrying multiple part numbers for similar functions across models
Lack of spare parts availability for older excavator models no longer supported by OEMs

Engineering

Technical Features

Final drive motor assembly for excavator travel system
Part number 706-8J-01020, designed for PC400-7 and PC450-7 series
Rated displacement from 50cc/r to 1000cc/r, rotation speed from 100 r/min to 1000 r/min
Maximum torque output from 100Nm to 2000Nm
Manufactured using imported European CNC machining centers and forming grinders
Cycloid hydraulic motor design with high durability under heavy load
Compatible with Danfoss and Eaton (Char-Lynn) series products as a direct substitute

Specification

Specification Table for This Listing

Taken from the supplier specification we hold. Anything not listed here is confirmed in writing before order rather than assumed.

Specification of Excavator PC400-7 PC450-7 Excavator Parts Final Drive 706-8J-01020 Motor Ass'y
Warranty	180days
Port	Qingdao/Guangzhou/Shenzhen
Service	Professionalafter-saleservice
Application	Forexcavator
MOQ	1Piece/Pieces
Stock	Instock
Part Number	706-8J-01020
Model Series	PC400-7, PC450-7
Place of Origin	Japan
Brand	Original
Rated Displacement	50cc/r to 1000cc/r
Rotation Speed	100 r/min to 1000 r/min
Max Torque	100Nm to 2000Nm
Compatibility	Danfoss, Eaton (Char-Lynn) series
Manufacturing Equipment	Imported European CNC machining centers and forming grinders
Brand Name	Original
Part Name	Travel motor/Final drive
Piece/Pieces Port	Qingdao/Guangzhou/Shenzhen
Payment Terms	T/T,Western Union and Paypal,CC and
VISA Shipping Ways	By ship,air or express
For Excavator Part Number	706-8J-01020

Materials

Materials and Build

High-strength alloy steel housing for the motor casing
Precision-machined cycloid gear components
Hardened steel shafts and bearing surfaces
Sealed hydraulic seals and O-rings for long-term operation
Corrosion-resistant finish on external surfaces

Process

How an Order Is Handled

You provide the excavator model, serial number and failure symptoms
We confirm part compatibility and availability in stock
You place the order with payment via T/T, Western Union, PayPal, CC or VISA
We prepare the unit, photograph and video record it before dispatch
We arrange shipping by sea, air or express from Qingdao, Guangzhou or Shenzhen
You receive tracking and export documents upon shipment

Quality Control

Checks Before Loading

Each unit is tested for torque output and rotational smoothness before packing
CNC machining and grinding processes are verified against dimensional tolerance charts
Hydraulic seals and internal components are inspected for wear or damage
Final assembly is photographed and documented with serial number matching

Customisation

What Can Be Changed

Custom packaging for bulk or export shipment
Labeling with your company name or part number if required
Optional inclusion of installation guide or torque specification sheet
Supply with additional seals or gaskets upon request

Honest Comparison

How It Compares With the Alternatives

OEM original 706-8J-01020	Same performance and fit, but lower cost and faster delivery from China
Generic aftermarket motor	Higher precision and longer life due to European CNC machining and quality control
Used or reconditioned unit	New build with full warranty, no risk of hidden wear or failure history

Use Guide

Using It Well

Inspect the motor and mounting surfaces before installation for damage or debris
Use original torque specifications when securing mounting bolts and hydraulic lines
Bleed the hydraulic system thoroughly after installation to prevent air lock
Check oil level and filter condition after the first 50 hours of operation
Keep records of installation date and serial number for warranty claims

Photographs

More Views of This Unit

Photographs held for this listing. Current yard photographs of the specific unit you shortlist are taken fresh before any balance is paid.

Side view of the motor unit showing the shaft end and gear housing, mounted on a workbench

Source Specification

Manufacturer Text We Hold for This Listing

Excavator PC400-7 PC450-7 excavator parts final drive 706-8J-01020 motor ass'y Product Description Excavator PC400-7 PC450-7 excavator parts final drive 706-8J-01020 motor ass'y Our advantages: 1.Much lower price than trading company, excellent quality+short delivery time. 2.Small order allowed.( MOQ:1 PCS ) 3.Reply your enquiry in as soon as we can Company Information Company Information Our company's CNC machining centers, forming grinder,CNC cars are imported from Europe. We manufacture and supply cycloid hydraulic motors and other hydraulic products categories. More than 3000 kinds of orbit motors with variety series of models and data can be offered, with rated displacement from 50cc/r to 1000 cc/r, rotation speed from 1000 r/min to 100 r/min, and max torque from 100Nm ~2000Nm. Our products can substitute Danfoss and Eaton(Char-Lynn) series products. We supply different kinds of hyd

Reproduced from the supplier specification. Figures are confirmed in writing on the proforma invoice before any deposit.

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