مضخة هيدروليكية 708-3T-00161 لـ حفارة صغيرة Komatsu PC70-8

Komatsu PC70-8 Main Hydraulic Pump Assembly
Genuine & Refurbished Main Pump with Optional Long/Short Gear Pump for Blade Circuit

1. Basic Information
Part Name: Variable displacement axial piston main hydraulic pump (match with separate blade gear pump, long gear pump / short gear pump optional)
Main PN:
708-3T-00161 With Blade
708-3T-00151 Without Blade
Applicable Model: Komatsu PC70-8 mini excavator
Product Grades: Genuine New, Fully Refurbished Pump, Premium Aftermarket New
Warranty: 12 months coverage for genuine pumps and refurbished pumps; 6–12 months warranty for aftermarket hydraulic pumps
Net Weight: 60 kg
Stock Status: In stock, shipment will be processed within 3–7 working days after order confirmation
2. Core Product Advantages
Produced and refurbished strictly following OEM drawing data and hydraulic parameters, perfectly matching the original hydraulic system of PC70-8 excavator
Standard load-sensing pressure compensation system dynamically adjusts flow output based on actual working load, reducing idle power waste and lowering overall fuel consumption
Refurbished products adopt brand-new replacement for all worn internal core parts including piston, valve plate and swash plate; precision grinding processing ensures stable pressure output and low internal leakage during long-hour heavy construction operation
Standard mounting holes, oil port layout and input spline structure support direct bolt-on replacement without any cutting or modification on equipment
Customers are allowed to select assemblies equipped with blade gear pump (long gear structure / short gear structure) or main pump body only according to actual repair demands; high-performance composite seals effectively prevent internal and external oil seepage
Every finished pump must pass bench tests of pressure resistance, flow calibration and tightness inspection before leaving the warehouse
3. Technical Parameters
Pump Type: Variable axial piston main pump + auxiliary gear pump for blade system
Max rated working pressure: 27.5 MPa
Control Method: Load sensing pressure compensation control
Rated rotational speed: 2300 rpm
Input Shaft: OEM original standard spline specification
Rotation Direction: Factory original preset rotation direction
Function: Main pump supplies power for travel, swing, boom, arm and bucket movements; matched gear pump independently provides hydraulic oil for bulldozer blade control circuit
4. Compatibility & Cross Reference List
Applicable Equipment: Komatsu PC70-8
Interchange PN Group: 708-3T-00161, 708-3T-00151
Matching Option: Main pump only / Main pump + long blade gear pump / Main pump + short blade gear pump
5. BELPARTS Competitive Strength
Specialized in supplying full-series hydraulic pumps for Komatsu small and medium excavators. Diversified product configurations satisfy different maintenance matching requirements. Standard refurbishment procedures and strict quality inspection system guarantee consistent operating performance. Abundant spot inventory supports global sea transportation and air transportation services. Professional installation guidance and timely after-sales technical support are provided for all orders.
6. Common FAQ
Q1: Are the two part numbers interchangeable?
A: These two codes are OEM supersession part numbers for the identical main pump assembly, completely interchangeable during equipment maintenance and replacement.
Q2: How to choose between long gear pump and short gear pump for blade?
A: Confirm the original gear pump size on your existing pump assembly before purchase; we can provide corresponding integrated assemblies or single main pump body separately as requested.
Q3: Delivery lead time?
A: All stocked goods can be delivered within 3–7 working days with complete global logistics network support.