Name: K3V112DT-1E42 Hydraulic Pump K3V112DT-1E42 Excavator 14603650 14595621 for EC220D
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: K3V112DT-1E42
Availability: InStock

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K3V112DT-1E42 Hydraulic Pump K3V112DT-1E42 Excavator 14603650 14595621 for EC220D

K3V112DT-1E42 hydraulic pump for EC220D

Excavator hydraulic main pump K3V112DT-1E42

Hydraulic pump 14603650 14595621 replacement

Place of Origin:

China

Model Number:

K3V112DT-1E42

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Product Details

Color:

Black

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K3V112DT-1E42 hydraulic pump for EC220D

Excavator hydraulic main pump K3V112DT-1E42

Hydraulic pump 14603650 14595621 replacement

Payment & Shipping Terms

Minimum Order Quantity

1 Pc

Packaging Details

Carton

Delivery Time

7-15days

Payment Terms

T/T

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guangqi334@gmail.com

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Product Description

K3V112DT-1E42 Hydraulic Main Pump Excavator Parts Digger Spare Construction Machinery Parts

Function

The main hydraulic pump is the central power part of an excavator’s hydraulic circuit. It receives power from the engine, turns mechanical energy into high-pressure hydraulic energy, and sends pressurized medium to hydraulic motors to drive all boom, stick, bucket, travel and swing movements.

Type

Engineering excavators commonly use axial variable displacement piston pumps. Medium and large tonnage machines are fitted with integrated dual main pumps and a rear pilot gear pump.
These two high-pressure pumps have separate oil supply paths, feeding the main control valve to achieve combined working actions, with working pressure between 28MPa and 35MPa.
The low-pressure pilot pump mounted on the pump tail runs at 3~4MPa with low flow rate, providing pilot oil for operating handles and main valve spools.

Internal Parts

Multiple piston groups inside the housing and cylinder block rotate with the main shaft to finish oil suction and pressure build-up.
The swash plate adjusts its tilt angle to change piston stroke and pump displacement.
The external servo regulator actuates the swash plate according to hydraulic feedback signals. A larger angle increases flow and speed; a smaller angle lowers fuel use and prevents engine stall.
The valve plate separates low-pressure inlet and high-pressure outlet to distribute hydraulic fluid.

Three Control Modes

Constant power regulation reduces pump displacement when load increases, protecting the engine and making full use of power.
The LS load sensing system supplies flow as needed and maintains low displacement at idle to save fuel.
The HP pressure limiting function minimizes pump displacement at maximum pressure to protect hydraulic pipelines and cylinders.

Common Failures

Worn pistons, faulty valve plates or blocked regulators lead to internal leakage, causing slow operation and insufficient power.
If the regulator is locked at maximum displacement, the engine will overload, produce black smoke and stall under heavy loads.
Too much internal leakage converts pressure loss into heat, resulting in abnormal hydraulic oil temperature rise. Air, low oil or damaged parts will cause abnormal noise.

Maintenance

Periodically replace hydraulic oil and filter elements to avoid abrasive damage to precision parts. Keep suction pipelines tightly sealed to prevent air intake and vibration. Maintain hydraulic fluid at standard level.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Product Name	Hydraulic Pump
Model	K3V112DT-1E42	MOQ	1 Piece
Quality	High-Quality	Delivery time	7-15 Days
Standard or Nonstandard	Standard	Application	Excavator Machinery
Size	Standard Size	Color	Black

K3V112DT-1E42 Hydraulic Pump K3V112DT-1E42 Excavator 14603650 14595621 for EC220D 0 Company Profile

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K3V112DT-1E42 Hydraulic Pump K3V112DT-1E42 Excavator 14603650 14595621 for EC220D

K3V112DT-1E42 hydraulic pump for EC220D

Excavator hydraulic main pump K3V112DT-1E42

Hydraulic pump 14603650 14595621 replacement

K3V112DT-1E42 hydraulic pump for EC220D

Excavator hydraulic main pump K3V112DT-1E42

Hydraulic pump 14603650 14595621 replacement

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PVD-0B-21P-6G3 Hydraulic Pump RB411-61113 RB411-61110 for Kubota U20-5 Mini Excavator Hydraulic Piston Pump

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