723-47-26500 Main Control Valve for Komatsu PC300 Excavators

723-47-26500 identifies the main control valve used as an application reference for Komatsu crawler excavators. The multi-section valve receives pump flow and meters it to the boom, arm, bucket, swing and travel functions according to pilot commands. Section layout, spool specification, relief-valve arrangement and port routing must match the machine configuration; appearance alone is not a sufficient ordering check.

● Replacement after spool, valve-block or housing damage has been distinguished from pump and actuator faults

● One weak or slow function after pilot pressure, cylinder leakage, motor leakage and pump delivery have been checked

● Quotations that must state whether relief valves, solenoids and sensors are included

723-47-26500 is the reference part number used to identify and review this product. Komatsu identifies the equipment application and does not automatically define the brand of every quoted unit. The formal quotation will state the supplied brand, condition, assembly scope, and included or excluded components.

The application reference for this page is the Komatsu PC300 crawler excavator. Final fitment must still be checked against the complete machine serial number, old-part identification and interface configuration. Do not order by appearance or reference part number alone.

● Complete machine serial number and ID plate

● Valve-section count and section order

● Work-port, pump-port, tank-port and pilot-port layout

● Main relief and port-relief valve positions

● Solenoids, sensors and external pilot fittings

● Mounting feet, brackets and adjacent piping clearance

Main control valves may differ in valve-body section count and order, port positions, pilot control, solenoids, relief or make-up cartridges and attached valve components. Compare the valve-block identification, port map, connectors and mounting points with the removed unit. External similarity or the reference part number alone cannot confirm the installed configuration.

A verified genuine option may be available when confirmed. Branded or aftermarket replacements and other supply options appropriate to this product may be discussed according to the enquiry. Final availability and supply identity are confirmed in the formal quotation.

● Actual supplied brand and product condition

● Exact supply scope and included or excluded components

● Order quantity, applicable warranty terms and lead time

● Packing, Incoterms and payment terms

For quotation, send the PC300 machine identification, old-unit identification and the clearest interface photos.

● Confirm the valve-block identification, section arrangement and all attached valves included in the quotation.

● Map the main, return, pilot and drain connections and record every solenoid or sensor connector before removal.

● Before replacement, check pilot supply, electrical control, relief cartridges, contamination and leakage in connected actuators.

● Keep all ports protected during installation and clean affected lines according to the machine service procedure.

Packaging will be selected according to the confirmed product configuration and shipping method. Open ports, solenoids, connectors, attached valves and mounting surfaces will be protected as applicable, with the valve body supported to avoid impact and contamination.

The shipping method, freight and estimated transit time will be confirmed according to the quantity, packed dimensions, weight and destination.

Warranty terms depend on the selected supply option and will be stated in the formal quotation. Actual pre-shipment photos can be provided.

Based in Xuzhou, China, VTS focuses on construction machinery parts supply and fitment support for international buyers.

● Fitment support focuses on the serial number, valve label, section order, port layout, relief valves and solenoids.

● The quotation distinguishes the supplied brand, product condition, included components and supply scope.

● Confirmed related excavator parts can be consolidated, with international shipping coordinated for the actual order.

How is 723-47-26500 identified?

VTS checks the machine serial number, old label, section layout, port map and external valve configuration.

Are relief valves and solenoids included?

Only components listed in the quotation are included; reference-image components are not automatically part of every offer.

Can hose positions be changed to suit a similar valve?

No. Internal passages and spool functions must correspond to the machine piping and controls.

Does one weak function prove the main valve is faulty?

No. Pilot pressure, cylinder leakage, motor leakage and pump delivery should be checked for that function first.

What contamination precautions are needed?

Keep ports capped, flush affected lines and replace applicable filters before connecting the replacement valve.

Can VTS quote a complete valve and individual service parts?

Availability depends on the exact valve configuration and current sourcing; the requested scope should be stated in the enquiry.

For quotation, send the PC300 machine identification, old-unit identification and the clearest interface photos.