Final Drive for Komatsu PC300-7
The Komatsu PC300-7 is a widely deployed Komatsu platform with strong aftermarket support. As a large excavator (around 30 t class), it is typically used for heavy excavation, quarry support and earthworks. When its final drive wears — slow tracking, a leaking travel motor, noise from the track drive, or metal in the oil — a replacement travel motor and gearbox assembly is usually the fastest way back to work.
- ✓Configuration matched to OEM number, serial & nameplate before you commit
- ✓Sourced from vetted China aftermarket / OEM-equivalent factories
- ✓One technical contact from RFQ through delivery
Part numbers for this model
cross-check against your tagThe numbers below are commonly associated with the Komatsu PC300-7 and help you cross-check the tag on your unit. Match them against your nameplate — or just send us a photo and we will identify the exact part before quoting.
Final drive assembly numbers
complete unit| Part number | Type | Action |
|---|---|---|
| 207-27-00370 | assembly | Quote this |
| 207-27-00371 | assembly | Quote this |
Travel motor numbers
hydraulic motor only| Part number | Type | Action |
|---|---|---|
| 708-8H-00320 | travel motor | Quote this |
Service & repair kit numbers
components / seals| Part number | Type | Action |
|---|---|---|
| 207-27-00440 | service part | Quote this |
Why source this final drive through us
We help you source a matching final drive for the Komatsu PC300-7 from vetted China aftermarket and OEM-equivalent manufacturers, then confirm the exact unit against your tag before you commit. You get factory-direct pricing with technical checking on every order, not a blind cross-reference.
Confirm the exact fit before you order
Send the OEM number stamped on your travel motor or gearbox, your machine serial number, and a clear nameplate photo. We verify displacement, mounting bolt pattern, sprocket interface and speed ratio before quoting, so the unit that ships is the one that bolts on.
- 01OEM number stamped on the unitidentifies the build
- 02Machine serial numberyear & region
- 03Clear nameplate photoremoves tag-reading errors
- 04We verify 4 fit pointsdisplacement · mounting holes · sprocket interface · speed ratio
Not sure how to read the tag? Follow the nameplate check guide.
Same model name can mean a different unit
Different build years and regions of the Komatsu PC300-7 can use different final drives even within the same model name. Always confirm by serial number and nameplate rather than model name alone.
Buying questions
What is the lead time for a Komatsu PC300-7 final drive?
Do I need the nameplate part number to order?
Is this an OEM or an aftermarket unit?
How do you confirm the unit fits my machine?
Do you ship worldwide?
When will I receive my quote, and how long is it valid?
Get your Komatsu PC300-7 back on track
Tell us the part number — or send a nameplate photo — and we'll confirm the right unit and quote.