Name: K3V140DTP-9T1L Hydraulic Main Pump for HyundaSY285 Excavator Kawasaki Type Piston Pump
Brand: Lanzhou Fudong Guangqi Trading Co., Ltd
SKU: K3V140DTP-9T1L
Availability: InStock

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K3V140DTP-9T1L Hydraulic Main Pump for HyundaSY285 Excavator Kawasaki Type Piston Pump

Hyundai R300-7 hydraulic main pump

Kawasaki type piston pump

Hydraulic pump with warranty

Place of Origin:

China

Model Number:

K3V140DTP-9T1L

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Product Details

Color:

Grey

Highlight:

Hyundai R300-7 hydraulic main pump

Kawasaki type piston pump

Hydraulic pump with warranty

Payment & Shipping Terms

Minimum Order Quantity

1 Pc

Packaging Details

Carton

Delivery Time

7-15days

Payment Terms

T/T

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+8615294125097

guangqi334@gmail.com

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Product Description

K3V140DTP-9T1L Hydraulic Main Pump for HyundaSY285 Excavator Kawasaki Type Piston Pump

Working Principle & Function

The main hydraulic pump takes engine’s rotational mechanical power and transforms it into high-pressure hydraulic power, delivering pressurized fluid to boom, arm, bucket, travel and swing hydraulic motors, which makes all excavator hydraulic movements possible.

Common Pump Forms

Nearly all digging machines adopt axial variable piston pump design; mid-to-large excavators use unified dual main pump structure with a pilot gear pump mounted on the pump rear end.
Two independent pumping parts of main pump run at 28~35MPa and feed oil separately into different main valve ports to support multi-action compound operation. The rear pilot pump runs at low 3~4MPa pressure to supply control oil for pilot joysticks and inner spools of main control valve.

Internal Component Introduction

Multiple piston sets installed inside cylinder block suck and compress hydraulic oil while the main shaft rotates. Changing swash plate tilt alters piston travel and overall pump displacement size. The externally fixed regulator uses hydraulic pressure signal to adjust swash position: bigger tilt brings larger flow and faster movement; smaller tilt reduces flow output to save fuel and avoid engine stall under overload condition. Valve plate isolates low-pressure intake and high-pressure discharge cavities to complete oil distribution.

Three Main Control Functions

Constant power function lowers pump displacement as load rises to fully utilize engine power and avoid flameout; LS load sensing only outputs needed flow and keeps small displacement to save fuel at idle; pressure cut-off sharply reduces pump displacement to minimum value when pressure reaches limit value to protect hoses and cylinders from overpressure damage.

Frequently Seen Failures

Piston/valve plate wear-induced internal leakage or stuck regulator will slow down the whole machine and weaken digging power. Regulator stuck on large displacement position leads to excess flow, engine overload and black smoke. Severe internal leakage turns pressure loss into heat and overheats hydraulic oil; air entering pipeline, insufficient oil or damaged bearings/pistons cause abnormal pump noise.

Practical Maintenance Suggestion

Renew hydraulic oil and matched filters regularly to prevent impurity scratch on precision parts; seal suction pipeline tightly to block air intake and machine shaking; keep hydraulic oil at standard level to avoid pump premature damage.

Machinery Test Report	Provided	Warranty	3 Months
Video outgoing-inspection	Provided	Brand Name	OEM
Place of Origin	China	Product Name	Hydraulic Pump
Model	K3V140DTP-9T1L	MOQ	1 Piece
Quality	High-Quality	Delivery time	7-15 Days
Standard or Nonstandard	Standard	Application	Excavator Machinery
Size	Standard Size	Color	Grey

K3V140DTP-9T1L Hydraulic Main Pump for HyundaSY285 Excavator Kawasaki Type Piston Pump 0 Company Profile

Tags：

K3V140DTP-9T1L Hydraulic Main Pump for HyundaSY285 Excavator Kawasaki Type Piston Pump

Hyundai R300-7 hydraulic main pump

Kawasaki type piston pump

Hydraulic pump with warranty

Hyundai R300-7 hydraulic main pump

Kawasaki type piston pump

Hydraulic pump with warranty

Excavator Parts A10VO45DFLR 53R-VUC62N00 -S3042 R902502504 Hydraulic Piston Pumps OEM Brand Guangdong Origin for XE26 XE35

Hydraulic Pump PVD-1B-28P-8AG4 4331671 4358274 4399045 Hydraulic Piston Pump for EX30 Cx26c Excavator Main Pump

PVD-0B-18B-6AG3-4950A 20400006 Hydraulic Pump for Excavator Small Piston Hydraulic Pump Construction Machinery Parts

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

Working Principle & Function

Common Pump Forms

Internal Component Introduction

Three Main Control Functions

Frequently Seen Failures

Practical Maintenance Suggestion

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