excavator
Komatsu PC300-7
Hydraulic systems on this machine, the FLUTEK units that fit them, and the catalogue part numbers behind those units.
Komatsu PC300-7 is listed in our fitment library. Below are the FLUTEK units that fit those systems and the catalogue part numbers behind them. Part numbers are catalogue-derived and verified against the manufacturer document before we answer. Send the serial number or a photo of the machine plate and we confirm the exact variant before quoting.
At a glance - what fits the Komatsu PC300-7
| System | FLUTEK unit | Parts list | Actions |
|---|---|---|---|
| Main hydraulic pump | K3V140DTP | K3V140 / K3V180 / K5V160 | Quote |
Not sure which pump your machine uses- Send the nameplate photo - the control suffix (DTP / DTH) decides the fitment.
Or just send a photo of the part or the nameplate
Pick the photo here, then attach the same photo in WhatsApp with the machine model - we match it to the catalogue line for this machine and confirm the variant.
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FLUTEK units for Komatsu PC300-7
Where the machine was built in different years or for different markets, more than one unit may fit.
Hydraulic systems on the Komatsu PC300-7
Machine - system - unit - part number. Pick the system you are repairing.
Main hydraulic pump
Shop by series for the Komatsu PC300-7
The units above belong to these FLUTEK series. Each series page carries the catalogue part list for every drawing position, and the machines that take it.
Machines of this brand in the field
Representative photograph of a Komatsu PC300-7 machine of this class. It is a licensed editorial image, not our stock and not a picture of Komatsu PC300-7 itself.
Parts for this machine, by component group
Shaft group, rotor group, valve block and casing, servo group, seals - every catalogue line for the pump family used on the Komatsu PC300-7.
Common faults on this machine, and what to check first
The diagnosis guides below start from the symptom, list the checks in the order a workshop should work through them, and say which parts usually solve it. Full index: diagnosis guides.
Spools stick or lock when cold
Valve and pilot control
A spool that sticks when cold, or grabs in one position, is telling you about oil cleanliness, varnish or bore damage.
Machine weak when it is hot
Oil, filtration and the system as a whole
In high ambient temperatures the hydraulic system runs near its thermal limits.
Repair the pump or replace it
Oil, filtration and the system as a whole
The decision follows measurable evidence, not the age of the machine.
No pressure / no power at the pump
Pump and pressure supply
No pressure is rarely the pump alone. Use this checklist to separate pump wear from control, suction and relief problems in under…
Noise, vibration and rising oil temperature
Pump and pressure supply
Noise plus heat usually means air, starvation or internal leakage. Which one you have changes what you order.
Case drain flow above specification
Pump and pressure supply
Case drain flow shows how worn a pump or motor is without removing it.
Parts that usually solve them
Catalogue lines from the same families. Search the full library by part number from the parts library.
Order by part number
The parts pages list every catalogue position with its number, quantity per set and the model it belongs to.
How we verify fitment and support the repair
Nameplate-first verification
Your machine model plus the pump or motor nameplate decides the shaft, regulator and control variant. We confirm all three before dispatch - that is where most ordering mistakes come from.
Parts book and catalogue cross-check
Every part number on our pages comes from the FLUTEK catalogue parts tables, with the drawing position number so you can match it to the diagram before ordering.
Back on the job quickly
Single pieces and complete assemblies ship cross-border from Guangzhou by express, air or sea. Send the parts list and we quote price, lead time and freight together.
Editorial images used for illustration; see service standards for the full delivery checklist and image credits.
Machines in the same class
Send your parts list
Prefer email? Fill this in and we reply within 12 working hours. You can also send photos by email.