Excavator Parts

WA300-3 WA320-3 705-55-34160 705-11-37240 PUMP ASS'Y

A hydraulic pump assembly model 705-55-34160 / 705-11-37240 designed for use in excavators from the WA300-3 and WA320-3 series, manufactured in Shandong, China. It is a direct fit replacement for original equipment, available in stock with a 180-day warranty. The unit is supplied with professional after-sales service and supports small orders starting from one piece.

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: 10665

Hydraulic pump assembly 705-55-34160 / 705-11-37240 mounted on a test bench, showing inlet and outlet ports

Key Benefits

What This Unit Does Well

Direct fit for WA300-3 and WA320-3 excavators, reducing downtime during replacement
Available in stock with immediate dispatch, avoiding long lead times common with OEM parts
MOQ of 1 piece allows for single-unit repair or spare stock without bulk commitment
180-day warranty covers failure due to manufacturing defects, reducing risk on first replacement
Lower cost than trading companies while maintaining compatibility with original specifications
Supports multiple excavator models including PC, EX, ZX, ZAX, SK, R, and UH series for fleet standardisation

Application Scenarios

Where It Is Used

Replacing a failed hydraulic pump on a WA300-3 excavator in a mining site with no local spare parts availability
Maintaining a fleet of excavators across multiple construction sites where downtime must be minimised
Procuring a single spare pump for a remote job site with no access to original equipment suppliers
Rebuilding a used excavator with a known pump failure and needing a reliable, tested replacement

Fit

Who It Is For

Fleet maintenance managers needing quick pump replacement for WA300-3 and WA320-3 excavators
Contractors operating in remote areas with limited access to OEM parts and long delivery windows
Parts distributors stocking hydraulic components for excavator repair shops in Southeast Asia and Africa
Engineering teams sourcing low-cost, reliable pump replacements for repair and rebuild projects

Buyer Pain

Problems It Solves

Long lead times for OEM hydraulic pumps from original manufacturers, causing extended machine downtime
High cost of genuine pumps from trading companies, increasing repair budget pressure
Inability to order single units due to high MOQs from suppliers, forcing overstocking
Lack of local availability of compatible pumps for older excavator models in emerging markets
Uncertainty over part authenticity when sourcing from unverified online suppliers

Engineering

Technical Features

Hydraulic pump assembly model 705-55-34160 / 705-11-37240 for WA300-3 and WA320-3 excavators
Designed for use in hydraulic systems requiring consistent flow and pressure output
Manufactured using CNC machining centers and forming grinders imported from Europe
Compatible with a range of excavator models including PC, EX, ZX, ZAX, SK, R, and UH series
Rated for standard operating conditions in construction, mining and earthmoving applications
Engineered to match original equipment performance parameters for reliable operation

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 WA300-3 WA320-3 705-55-34160 705-11-37240 PUMP ASS'Y
Warranty	180days
Port	Qingdao/Guangzhou/Shenzhen
Service	Professionalafter-saleservice
Application	Forexcavator
MOQ	1Piece/Pieces
Stock	Instock
Part Number	705-55-34160 / 705-11-37240
Model Compatibility	WA300-3, WA320-3, and related excavator series
Stock Status	In stock
Port of Shipment	Qingdao / Guangzhou / Shenzhen
Place of Origin	Shandong, China (Mainland)
Brand	OEM
Payment Terms	T/T, Western Union, PayPal, CC, VISA
Shipping Methods	By TNT, FedEx, DHL
Brand Name	OEM
Part Name	Pump ass'y
Piece/Pieces Port	Qingdao/Guangzhou/Shenzhen
VISA Shipping Ways	By tnt, fedex and dhl

Materials

Materials and Build

Cast iron or steel housing for pump body and casing
Precision-machined internal components including gears and rotors
Seals and gaskets made from durable rubber compounds for hydraulic fluid resistance
Shaft and bearing assembly with hardened steel components for wear resistance

Process

How an Order Is Handled

You confirm the excavator model and part number required (705-55-34160 / 705-11-37240)
You place order with payment via T/T, Western Union, PayPal, or credit card
Unit is packed with protective foam and shipping label applied
We arrange shipping via TNT, FedEx, or DHL and provide tracking number
You receive the pump within 3-7 business days depending on destination

Quality Control

Checks Before Loading

Each pump is tested under pressure and flow conditions before packing
Internal components are inspected for machining accuracy and surface finish
Seals and gaskets are checked for correct fit and material integrity
Pump is photographed and serial number recorded before shipment

Customisation

What Can Be Changed

No customization available for this specific pump assembly
Pump is supplied as a direct OEM replacement with no modifications allowed
Only the part number and model compatibility can be confirmed before order

Honest Comparison

How It Compares With the Alternatives

Original OEM pump	This pump is lower cost and faster to ship, but may not carry the same brand-specific calibration data
Generic pump from unverified supplier	This unit has documented manufacturing process and warranty, reducing risk of failure
Pump from trading company	Same part but lower price with direct sourcing and faster delivery from stock

Use Guide

Using It Well

Inspect the pump for shipping damage before installation
Ensure all hydraulic fluid lines are clean and free of debris before connecting
Use only manufacturer-recommended hydraulic fluid type to avoid seal degradation
Check for leaks after initial operation and re-torque connections if needed
Keep spare seals and gaskets on hand for future maintenance

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.

Close-up of the pump housing with part number 705-55-34160 clearly marked

Side view of the pump with drive shaft and mounting flange visible

Pump installed on a ZX330-3 excavator undercarriage, showing fitment

Source Specification

Manufacturer Text We Hold for This Listing

WA300-3 WA320-3 705-55-34160 705-11-37240 PUMP ASS'Y Product Description WA300-3 WA320-3 705-55-34160 705-11-37240 PUMP 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 hydraulic motors,including OMP/JH/BMP/BM1/HMP series,OM

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

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