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Komatsu 702-21-07311 is the hydraulic pump solenoid valve (flange mounted, with braided lead and plug). It is used on Komatsu -7, -8 and -10 series excavators. This aftermarket valve has the same ports, mounting and coil connector as the original, so it fits where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Solenoid Valve |
| Replaces | Komatsu 702-21-07311 |
| Type | Flange mounted solenoid valve with braided lead and connector |
| Voltage | 24V |
| Fits | Komatsu PC130-7; Komatsu PC130-8; Komatsu PC210-10; Komatsu PC240LC-10; Komatsu PC290LC-10; Komatsu PC360LC-10; Komatsu PC450LC-8; Komatsu PC490-10; Komatsu PC88MR-8; Komatsu PC138US-8 |
| Condition | New, aftermarket |
| Stat. HS-Code | 848180 |
Komatsu machines
Check the part number on your old unit before ordering.
| Komatsu Part No.(SPM Part No.) | Fits |
|---|---|
| 702-21-07311(SPM-HEP-2996) | Komatsu PC130-7, Komatsu PC130-8, Komatsu PC210-10, Komatsu PC240LC-10, Komatsu PC290LC-10, Komatsu PC360LC-10, Komatsu PC450LC-8, Komatsu PC490-10, Komatsu PC88MR-8, Komatsu PC138US-8 |
Slow or weak hydraulics
When the machine loses power at the pump, digs slowly or stalls the engine under load, the pump control solenoid is a common cause once the pilot pressure and filters check out.
Pump fault codes
A solenoid or pump control fault on the monitor points to the valve, its plug or the wiring. Measure the coil resistance and check the connector for water before replacing the valve.
Sticking spool
Dirty oil wears the spool and makes it stick, so the pump does not follow the controls. Fit a new valve and change the hydraulic filters.
Fitting tips
Relieve the hydraulic pressure before removing the old valve, fit the new O rings lightly oiled, tighten to the machine maker's torque and check for leaks and correct operation before work.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (12 aftermarket sellers) | USD 41.90 to 69.58 | 6 Oct 2026 |
| Diselmart | USD 82.50 | 6 Oct 2026 |
| WDPart | USD 97.60 | 6 Oct 2026 |
| SINOCMP | USD 99.00 | 6 Oct 2026 |
| Fab Heavy Parts | USD 99.16 | 6 Oct 2026 |
| MyMROmarts | USD 126.99 | 6 Oct 2026 |
| YEM Parts | USD 145.95 | 6 Oct 2026 |
| Spare Part Mart | USD 33.52 | Today |
Our price of USD 33.52 is 20% to 77% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
No. It is an aftermarket part made to fit in place of Komatsu 702-21-07311. It is not made by or affiliated with Komatsu; the Komatsu part number is used only to show what it replaces.
It fits Komatsu PC130-7; Komatsu PC130-8; Komatsu PC210-10; Komatsu PC240LC-10; Komatsu PC290LC-10; Komatsu PC360LC-10; Komatsu PC450LC-8; Komatsu PC490-10; Komatsu PC88MR-8; Komatsu PC138US-8. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It has the same ports, mounting and coil connector as the original. Check the coil voltage matches your old valve, mark the ports before removing it, seal the threads and check for leaks under load.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your postcode.
In USD for the quantity selected. The exact cost is confirmed at checkout.
