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Aftermarket replacement hydraulic gear pump for Komatsu HD785-7 dump trucks. It replaces Komatsu part number 705-95-07120: the hydraulic gear pump listed by Komatsu as part number 705-95-07120.
Fits Komatsu HD785-7 dump trucks. It is built to the same mounting, wiring and connector layout as the part it replaces, so it fits in place of the old one without changes to the machine.
Check the part number on the label of the old unit, or in the parts manual for your machine's serial number range, before ordering. Sold as a single unit, shipped worldwide.
| Part Type | Hydraulic Gear Pump |
| Replaces | Komatsu 705-95-07120 |
| Fits | Komatsu HD785-7 dump trucks |
| Condition | New, aftermarket |
| Stat. HS-Code | 841360 |
Komatsu machines and engines
Check the part number on your old unit before ordering.
| Pack | Komatsu Part No.(SPM Part No.) | Fits |
|---|---|---|
| 1 Piece | 705-95-07120(SPM-HEP-2378) | Komatsu HD785-7 dump trucks |
Slow or weak hydraulics
A worn pump loses flow and pressure: functions slow down, especially when the oil is hot.
Noise
Whining or knocking from the pump points to worn gears or pistons, or cavitation from a blocked suction line.
Contamination
Metal in the filter or oil means the pump is wearing. Replace it before debris damages valves and motors.
Fitting tips
Flush the system, change the oil and filters, fill the pump case before starting, and run at low speed first.
Found this part cheaper elsewhere? Send us the listing and we will beat it under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Our price of USD 1,898.88 is 20 to 31% less than the aftermarket prices we compared it with:
| Holdwell, aftermarket | USD 2,373.60 (checked 4 Oct 2026) |
| eBay, aftermarket seller | USD 2,760.13 (checked 4 Oct 2026) |
| eBay, aftermarket seller | USD 2,763.78 (checked 4 Oct 2026) |
No. It is an aftermarket part made to fit in place of Komatsu 705-95-07120. It is not made by or affiliated with Komatsu; the Komatsu part number is used only to show what it replaces.
It fits Komatsu HD785-7 dump trucks. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It is made to the same mounting and connections as the original part. Fit new gaskets and seals where they are used, and check for leaks and correct operation before putting the machine back to work.
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.
