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31QB-10011 Main Pump HYUNDAI Excavator Spare Parts Fitting For R480LC-9 R520LC-9

Categories Excavator Hydraulic Pump
Brand Name: OEM
Model Number: 31QB-10011
Place of Origin: China
MOQ: 1 PCS
Price: 1616 USD
Payment Terms: T/T, D/P, D/A,Western Union, L/C, MoneyGram
Supply Ability: 100-2000
Delivery Time: 3-7 working days
Packaging Details: Wooden box for heavy parts, paper carton for light parts
Category: HYUNDAI Spare Parts
Part number: 31QB-10011
Product name: Main Pump
Machine number: R480LC-9A R480LC-9S R520LC-9
Application: Excavator
Lead time: 1-3 days for delivery
Packing: Standard Export Carton
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  • Product Details
  • Company Profile

31QB-10011 Main Pump HYUNDAI Excavator Spare Parts Fitting For R480LC-9 R520LC-9

  • 31QB-10011 Main Pump HYUNDAI Excavator Spare Parts Fitting For R480LC-9 R520LC-9


  • Specifiion

CategoryHYUNDAI Spare Parts
NameMain Pump
Parts No31QB-10011
Machine NumberR480C9MH R480LC9 R480LC9A R480LC9S R520LC9
Lead time1-3 DAYS
QualityBrand new, OEM quality
MOQ1 PCS
Means of transportBy sea/air, DHL FEDEX UPS TNT
PackingAs request or standard packing

  • Key functions & working principle
Working Principle1. Engine power drives the pump shaft, rotating the cylinder block and pistons
2. Pistons reciprocate to draw hydraulic oil into the pump (suction stroke) and pressurize it (delivery stroke)
3. Load-sensing valve detects system pressure/flow demand, adjusting the cylinder block angle to vary displacement
4. Pressurized oil is delivered to hydraulic valves, which distribute it to actuators (cylinders/motors) to drive machine movements
5. Relief valve releases excess pressure if system pressure exceeds the maximum rating, preventing damage
Core Functions1. Convert engine mechanical power into hydraulic energy for the entire hydraulic system
2. Supply stable, high-pressure oil flow to power all machine functions (digging, lifting, swing, travel)
3. Optimize energy efficiency via load-sensing control to reduce fuel consumption
4. Protect the hydraulic system from overpressure and contamination
5. Ensure smooth, responsive operation of the excavator

  • Compatible models

9-SERIES CRAWLER EXCAVATOR R480C9MH R480LC9 R480LC9A R480LC9S R520LC9 R520LC9A R520LC9S Hyundai


  • More other main pump applied to HYUNDAI heavey machine
21Q6-41390 MAIN PCB ASSY
HX180L, R125LCR-9A, R140LC9, R140LC9A, R140W9, R140W9A, R145CR9A, R160LC9A, R160W9A, R170W9, R180LC9A, R180W9A, R210LC9, R210W-9, R210W9A, R210W9AMH, R220LC9A, R220NLC9A, R235LCR9A, R250LC9A, R300LC9A...
21Q6-43400 MAIN PCB ASSY
R140LC9S, R140W9S, R160LC9S, R170W9S, R180LC9S, R180W9S, R210LC9BC, R210LC9BH, R210W9S, R260LC9S, R300LC9S, R300LC9SH, R330LC9S, R330LC9SH, R380LC9SH, R390LC9, R430LC9SH, R480LC9S, R520LC9S, RB140LC9S...
21Q6-43430 MAIN PCB
R140LC9S, R140W9S, R160LC9S, R170W9S, R180LC9S, R180W9S, R210LC9BC, R210LC9BH, R210W9S, R260LC9S, R300LC9S, R300LC9SH, R330LC9S, R330LC9SH, R380LC9SH, R390LC9, R430LC9SH, R480LC9S, R520LC9S, RB140LC9S...
39QB-41150 MAIN SPOOL ASSY
HX430L, HX480L, HX520L, R430LC9, R430LC9A, R430LC9SH, R450LC7, R480C9MH, R480LC9, R480LC9A, R480LC9S, R500LC7, R520LC9, R520LC9A, R520LC9S
21Q6-43300 MAIN PCB ASSY
R140LC9, R140LC9S, R140W9, R140W9S, R145CR9, R160LC9S, R170W9, R180LC9, R180LC9S, R180W9S, R210LC9, R210LC9BC, R210LC9BH, R210NLC9, R210W-9, R210W9S, R235LCR9, R250LC9, R260LC9S, R290LC9, R290LC9MH, R...
31QB-17730 MAIN RELIEF VALVE
HX480L, HX520L, R360LC9, R380LC9SH, R390LC9, R430LC9, R430LC9SH, R480LC9, R480LC9A, R480LC9S, R500LC7, R520LC9, R520LC9A, R520LC9S
31QB-14110 MAIN CONTROL VALVE
R480C9MH
31QB-17000 MAIN CONTROL VALVE
R480LC9, R480LC9A, R480LC9S, R520LC9, R520LC9A, R520LC9S
31QB-17100 MAIN CONTROL VALVE
R480LC9, R480LC9A, R480LC9S, R500LC7, R520LC9, R520LC9A, R520LC9S
XKBN-02635 MAIN BODY ASSY
BREAKERS, R520LC9, R520LC9A, R520LC9S
31QB-17730K MAIN RELIEF VALVE
HX480L, HX520L, R430LC9, R430LC9SH, R480LC9, R480LC9A, R480LC9S, R500LC7, R520LC9, R520LC9A, R520LC9S
21Q6-41391 MAIN PCB ASSY
R125LCR-9A, R140LC9A, R140W9A, R145CR9A, R160LC9A, R160W9A, R180LC9A, R180W9A, R210W9A, R210W9AMH, R220LC9A, R220NLC9A, R235LCR9A, R250LC9A, R300LC9A, R330LC9A, R380LC9A, R430LC9A, R480LC9A, R520LC9A
31NB-16110 MAIN CONTROL VALVE
R450LC7, R450LC7A
31NB-10110 MAIN CONTROL VALVE
R450LC7, R450LC7A

  • Directory listing
Pos.Part NoQtyParts nameComments
*.31QB-10011[1]MAIN PUMP*-1,-2,-3,-4
*-1.@[1]MAIN PUMP UNIT
111XJBN-00976[1]SHAFT-DRIVE(F)
113XJBN-00977[1]SHAFT-DRIVE(R)
114XJBN-00572[1]COUPLING-SPLINE
123XJBN-00571[2]BEARING-ROLLER
124XJBN-00978[2]BEARING-NEEDLE
127XJBN-00569[3]SPACER-BEARING
130XJBN-00568[1]BOOSTER
12XJBN-00680[2]BLOCK-CYLINDER
N151.XJBN-00681[18]PISTON
N152.XJBN-01522[18]SHOE
153XJBN-00683[2]PLATE-SET
156XJBN-00564[2]BUSHING-SPHERICAL
157XJBN-00541[18]SPRING-CYLINDER
211XJBN-00023[2]PLATE-SHOE
212XJBN-00012[2]PLATE-SWASH
214XJBN-00013[2]BUSHING-TILTING
251XJBN-00560[2]SUPPORT-S.P.
261XJBN-00025[1]COVER(FR)-SEAL
263XJBN-00979[1]COVER(RR)-SEAL
271XJBN-01594[2]CASING-PUMP
311XJBN-00559[1]COVER-VALVE(F)
312XJBN-00558[1]COVER-VALVE(R)
N313.XJBN-01387[1]PLATE(R)-VALVE
N314.XJBN-01388[1]PLATE(L)-VALVE
401XJBN-00028[4]SCREW
402XJBN-00555[4]SCREW-HEX SOC HD
406XJBN-00355[8]SCREW-HEX SOC HD
466XJBN-00356[4]PLUG-VP
468XJBN-00031[4]PLUG
490XJBN-00032[28]PLUG
492XJBN-00234[1]PLUG
N531.XJBN-00981[2]PIN-TILTING
532XJBN-00703[2]PISTON-SERVO
534XJBN-00034[2]STOPPER(L)
535XJBN-00035[2]STOPPER(S)
N548.XJBN-00360[2]PIN-FEED BACK
702XJBN-00040[2]O-RING
706XJBN-00982[1]O-RING
710XJBN-00983[2]O-RING
717XJBN-00984[2]O-RING
719XJBN-00985[3]O-RING
724XJBN-00902[15]O-RING
725XJBN-00903[10]O-RING
728XJBN-00905[4]O-RING
732XJBN-00047[2]O-RING
774XJBN-01595[1]SEAL-OIL
789XJBN-00049[2]RING-BACK UP
792XJBN-00050[2]RING-BACK UP
808XJBN-00051[4]NUT
824XJBN-00052[2]RING-SNAP
885XJBN-00053[2]PIN 2
886XJBN-00054[5]PIN-SPRING
901XJBN-00055[2]BOLT-EYE
953XJBN-00056[2]SCREW-SET
954XJBN-00553[2]SCREW-SET
956XJBN-01181[8]SCREW-SET
981XJBN-00156[1]NAME PLATE
983XJBN-00455[2]PIN
*-2.@[1]REGULATOR ASSYSEE 4020,FRONT
*-2.@[1]REGULATOR ASSYSEE 4030,REAR
*-3.@[1]GEAR PUMPSEE 4040
S011.XJBN-01523[2]PISTON ASSYSEE ILLUST
S013.XJBN-01383[1]CYLINDER ASSY-RHSEE ILLUST
S014.XJBN-01384[1]CYLINDER ASSY-LHSEE ILLUST
S030.XJBN-00011[2]SWASH PLATE ASSYSEE ILLUST
S530.XJBN-00986[2]TILTING PIN SUB ASSYSEE ILLUST
N.@[AR]NOT SUPPLIED PARTS


  • We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.


2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.


3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.


4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.


5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.


6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.


  • Packing and Shipping

Packing Details :


inner packing : plastic film for wrapping


external packing : wooden


Shipping :


within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.


1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,


2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.


3. By Sea: Delivery from the Huangpu port .


Quality 31QB-10011 Main Pump HYUNDAI Excavator Spare Parts Fitting For R480LC-9 R520LC-9 wholesale
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