702-21-60900 Pilot Solenoid Valve Assembly OE 7022160900 Fit Komatsu PC400-8 PC450-8 Excavator Main Control Valve Solenoid OEM Replacement Parts
Integral alloy valve block with precise sealing ring, effectively prevent internal & external hydraulic oil leakage, reduce machine power loss and slow movement failure.
Product Details
| Specification |
Detailed Information |
| Full Product Name |
Excavator Main Control Pilot Solenoid Valve Assembly |
| OEM OE Number |
702-21-60900 / 7022160900 |
| Compatible Machine |
Komatsu PC400-8, PC450-8 Heavy Excavator |
| Brand |
ZVEZDA |
| Condition |
100% Brand New Aftermarket OEM Equivalent Parts |
| Origin |
Guangdong, China |
| Core Material |
Alloy Valve Block + Pure Copper Coil + Hardened Valve Spool |
| Working Voltage |
DC24V Standard Excavator Voltage |
| Wiring Design |
Braided Anti-wear Harness + Waterproof Single Plug |
| Installation Position |
Main Hydraulic Control Valve Block |
| Shipment Lead Time |
1–7 Working Days After Payment Confirmation |
| Outer Packaging |
Neutral Export Carton + Shockproof PE Inner Foam |
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Frequently Asked Questions
| No. |
Question |
Standard Answer |
| Q1 |
Which Komatsu excavator models fit this solenoid valve 702-21-60900? |
This pilot solenoid valve is specially designed for Komatsu PC400-8 and PC450-8 large excavator main control valve. |
| Q2 |
What’s the interchangeable part number of 702-21-60900? |
The cross reference OE number is 7022160900, two codes stand for the same valve assembly. |
| Q3 |
Does this valve need wiring modification during installation? |
No cutting or rewiring required, plug, mounting hole and hydraulic port match OEM standard completely. |
| Q4 |
What common machine faults can this pilot solenoid solve? |
It fixes slow boom/arm movement, weak digging force, unstable walking speed and hydraulic oil leakage caused by failed original valve. |
| Q5 |
What protection design does the wire harness have? |
It adopts thick braided wear-resistant outer layer and waterproof plug, avoid wire breakage and short circuit under harsh construction site. |
| Q6 |
What voltage does this solenoid coil support? |
Standard DC24V, matched with most Komatsu 8 series large excavator power supply system. |
| Q7 |
Will long-term high hydraulic pressure cause internal leakage? |
We use high precision grinding spool and fluorine rubber high temp seals, greatly reduce leakage risk under long working pressure. |
| Q8 |
Is every solenoid valve tested before delivery? |
All finished units pass hydraulic pressure test, coil resistance test and continuous switch aging test before shipment. |
| Q9 |
Can I order one sample to test fitting on my PC400-8 machine? |
Yes, single piece sample order is supported for compatibility and performance test. |
| Q10 |
Do you provide customized packing with customer brand logo? |
Custom printed carton and logo service is available for bulk orders over 100 pieces. |