Excavator Hydraulic Spare Parts
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Main hydraulic control valve assembly identified by Komatsu reference 723-47-27505. Exact-number parts records identify the assembly for PC400-8 and PC450-8 excavator families. Valve sections and relief-valve configuration can vary by machine serial range, so compare the original valve tag, port layout and section count before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Komatsu main-control-valve assembly | 723-47-27505 |
| Published Assembly Variant | Verify section and port configuration | 723-47-27506 |
| Related Internal Valve Assemblies | Components within the control valve; not interchange numbers | 723-40-91500 / 723-40-91200 / 723-90-69100 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
3 model references
Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.
Quick fitment answers
Recorded compatible model references include Equipment: Komatsu PC400-8, Equipment: Komatsu PC450-8, Fitment limitation: Confirm 723-47-27505, original valve tag, section count, port layout, relief-valve configuration and machine serial range. Confirm the complete part number and machine serial range before ordering.
Related assembly numbers (not direct interchanges): 723-47-27506, 723-40-91500 / 723-40-91200 / 723-90-69100.
Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.
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