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R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
Specifications
Description
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
Product Overview
The control valve (also known as the main control valve or multi-valve block) is the central hydraulic control component in excavators. It consists of multiple parallel spools that precisely distribute high-pressure oil from the pump to actuators (e.g., hydraulic cylinders, motors) based on operational demands, enabling coordinated machine movements.
Specifications
Category Excavator Hydraulic Parts
Model R300LC-9S R300-9S
Package Wooden Box
Part Name 31Q8-17000P
Application Excavator
Product Attributes Excavator Parts
Working Principle
  • Flow Distribution: Operator joystick or electronic signals shift valve spools, adjusting port openings to control oil flow rate and direction to each actuator.
  • Pressure Regulation: Integrated pressure compensators and overload relief valves maintain stable flow under varying loads while preventing pressure spikes.
  • Multi-circuit Coordination: Parallel spool design allows simultaneous operation of multiple actuators (e.g., boom lifting + arm retraction), with the system automatically splitting pump flow.
Product Images
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
Parts on group MAIN CONTROL VALVE(1/5, -#1081):
Pos. Part No Qty Parts name Comments
*. 31Q8-17000P [1] MAIN CONTROL VALVE
*. 31Q8-17001P [1] MAIN CONTROL VALVE
N1. XKBF-01038 [1] HOUSING-P1
4 XKBF-01440 [1] SPOOL-TRAVEL
6 XKBF-01442 [1] SPOOL-BOOM 1
9 XKBF-01444 [1] SPOOL-ARM 2
11 XKBF-01446 [1] SPOOL-ARM REGEN
12 XKBF-01447 [1] SPOOL-BUCKET
16 XKBF-00379 [2] COVER B1-PILOT
20 XKBF-00383 [5] PLUG
21 XKBF-00806 [4] POPPET 1
22 XKBF-00385 [1] POPPET
23 XKBF-01250 [5] SPRING 1
24 XKBF-01252 [5] PLUG
25 XKBF-01450 [4] POPPET 2
26 XKBF-01451 [4] SPRING 2
27 XKBF-00442 [1] HOLDING KIT-B
27-1. XKBF-01457 [1] POPPET-LOCK VALVE
27-2. XKBF-01340 [1] SPRING-POPPET SIGNAL
27-3. XKBF-01426 [1] GUIDE-POPPET
27-4. XKBF-01458 [1] POPPET-PILOT
27-5. XKBF-01459 [1] SEAT-POPPET
27-6. XKBF-00903 [1] C-RING
27-7. XKBF-00905 [1] RESTRICTOR-LOCK VLV
27-8. XKBF-00958 [1] O-RING
27-9. XKBF-01283 [1] O-RING
27-10. XKBF-00962 [1] RING-BACK UP
29 XKBF-01592 [1] O-RING
30 XKBF-01593 [1] RING-BACK UP
31 XKBF-01594 [1] O-RING
32 XKBF-01595 [1] PLUG
34 XKBF-01256 [1] HOLDING KIT-A2 BOOM 1
N34-1. XKBF-01257 [1] BLOCK P1-HOLDING
34-2. XKBF-00910 [1] PISTON 1
34-3. XKBF-00907 [1] GUIDE-POPPET
34-4. XKBF-00912 [1] SPRING 1
34-5. XKBF-00913 [1] PISTON 2
34-6. XKBF-01248 [1] PLUG
34-7. XKBF-01258 [1] PLUG
34-8. XKBF-01259 [1] O-RING
34-13. XKBF-00931 [1] PLUG
34-15. XKBF-01265 [5] BOLT-SOCKET
34-16. XKBF-00425 [5] WASHER-SPRING
42 XKBF-00398 [1] CHECK VALVE ASSY
43 XKBF-00399 [1] ORIFICE-SIGNAL
44 XKBF-00922 [1] FILTER-COIN TYPE
47 XKBF-00931 [2] PLUG
50 XKBF-01275 [2] O-RING
51 XKBF-00807 [1] NEGATIVE CONTROL VLV
52 XKBF-00933 [2] PLUG
53 XKBF-01276 [1] FLANGE
55 XKBF-01279 [1] PLUG
59 XKBF-00940 [2] O-RING
63 XKBF-01280 [2] O-RING
65 XKBF-01282 [5] O-RING
65 XKBF-01282 [5] O-RING
67 XKBF-01074 [6] O-RING
68 XKBF-00416 [5] O-RING
73 XKBF-01284 [6] BOLT-SOCKET
75 XKBF-01286 [4] BOLT-SOCKET
76 XKBF-01287 [2] BOLT-SOCKET
78 XKBF-01289 [4] BOLT-SOCKET
79 XKBF-00425 [6] WASHER-SPRING
81 XKBF-00427 [4] WASHER-SPRING
82 XKBF-01291 [1] RELIEF VALVE-MAIN
83 XKBF-01292 [1] RELIEF VALVE-OVERLOAD
84 XKBF-01293 [1] RELIEF VALVE-OVERLOAD
85 XKBF-01294 [1] O-RING
86 XKBF-00732 [1] POPPET-CHECK
87 XKBF-00733 [1] SPRING-CHECK
88 XKBF-01295 [2] PLUG
92 XKBF-01543 [1] PLUG
93 XKBF-01542 [1] POPPET
94 XKBF-01541 [1] SPRING
N. @ [AR] NOT SUPPLIED PARTS
Our Advantages
  • Strong Part Number Database: If you can provide the right model and part number, we can supply the right product.
  • Professional and Experienced Salesperson: Our founder has been in this field for more than 7 years, with rich experiences.
  • Strict and Complete Company Rules: We will try our best to meet customer's delivery time. Before delivery, we must verify the part number or pictures of products one by one, to ensure customers receive high-quality and right-quantity goods.
  • Good Management System: No matter how big or small the order, as long as customers place the order, we will provide exporting service free of charge.
  • Good Service Attitude: If the customer has any questions about the product, we will help solve the problem immediately. As long as customers' requirements are reasonable, we will endeavor to make them satisfied.
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R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM

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R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM
R300LC-9S R300-9S Hydraulic Main Control Valve Assy for Hyundai Excavator Spare Parts 31Q8-17000P Distribution Valve Assembly OEM

GZ Yuexiang Engineering Machinery Co., Ltd.

Verified Supplier
2 Years
guangzhou
Since 2013
Main Products :
Excavator Hydraulic Pump, Excavator Hydraulic Pump Parts, Travel Motor Assy
Total Annual :
20000-3000000
Employee Number :
50~93
Certification Level :
Verified Supplier
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