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Hitachi 9142477 is the pump control unit in a zinc plated steel case with a cast aluminium frame, four slotted mounting feet and a blue multi pin connector block along one edge. It is used on Hitachi EX400-3 and EX400LC-3 excavators. This aftermarket version has the same mounting and electrical connector as the original, so it plugs in and bolts on 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 | Pump Controller (PVC Unit) |
| Replaces | Hitachi 9142477 |
| Machine | Hitachi EX400-3, EX400LC-3 |
| Function | Hydraulic pump control (PVC unit) |
| Fits | Hitachi EX400-3 and EX400LC-3 excavators |
| Condition | New, aftermarket |
| Stat. HS-Code | 853710 |
| Country of Manufacture | China |
Hitachi machines
Check the part number on your old unit before ordering.
| Hitachi Part No.(SPM Part No.) | Fits |
|---|---|
| 9142477(SPM-HEP-5065) | Hitachi EX400-3 and EX400LC-3 excavators |
Fault codes and dead functions
When functions stop working together or the display shows controller faults, a failed controller is a common cause once wiring and connectors check out.
Water and impact damage
Controllers take knocks, vibration and water. A cracked or corroded unit fails soon after.
Quicker than repair
A replacement unit is quicker than repairing boards and components one at a time.
Fleet spares
A spare controller turns a breakdown into a swap.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay, aftermarket seller | USD 453.60 | 2 Nov 2026 |
| Fab Heavy Parts | USD 579.05 | 2 Nov 2026 |
| SINOCMP | USD 599.00 | 2 Nov 2026 |
| FridayParts | USD 605.27 | 2 Nov 2026 |
| Buy Machinery Parts | USD 691.74 | 2 Nov 2026 |
| Spare Part Mart | USD 340.07 | Today |
Our price of USD 340.07 is 25% to 51% 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.
Yes, it was made for the Hitachi EX400-3, and 1 more listed under compatible equipment. Check the old controller is marked 9142477 or one of the cross references, because makers change parts between serial ranges.
On the Hitachi EX400-3, there is no fixed interval. It is changed when it fails, and many fail from water in the plug or chafed wiring rather than wear.
A fault code for this circuit, readings that jump or stay fixed, or a part that does not respond with power at the plug.
Read the fault codes, then check the plug and wiring for corrosion or a broken wire. A wiring fault reads the same as a failed controller.
Usually. Clear them after fitting and run the machine, so old codes are not mistaken for a new fault.
No. It is an aftermarket controller made to replace the Hitachi 9142477. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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