Machine-Compatible Quick Couplings
Komatsu Hydraulic Quick Couplers
Source the right quick-disconnect couplings for Komatsu machines — attachment lines, implement outlets and service replacements.
Komatsu Machines and Their Hydraulic Quick Couplings
Komatsu is a global leader in excavators, wheel loaders, dozers and dump trucks. Modern Komatsu excavator auxiliary lines use flat-face (ISO 16028 style) couplings; older machines and certain models may use ISO 7241 ball-lock couplings. Wheel loader and dozer auxiliary circuits follow the same pattern.
Coupling Profiles You Will Find on Komatsu Equipment
The table below summarises the quick-coupling profiles most commonly used across Komatsu machine families. It is a field guide, not a guarantee: verify the profile on your specific machine before ordering.
| Machine family | Common profile | Typical sizes | Typical threads |
|---|---|---|---|
| Excavator auxiliaries | Flat-face (ISO 16028 style) | 1/2" - 3/4" | ORFS / metric |
| Wheel loader auxiliaries | Flat-face (ISO 16028 style) | 1/2" - 3/4" | ORFS / NPT |
| Older machines | Ball-lock ISO 7241 where fitted | 1/2" - 3/4" | NPT / BSPP |
Selection Notes for Komatsu Fleets
- Komatsu excavators use flat-face couplings on standard auxiliary lines; high-flow circuits need larger flat-face sizes.
- Confirm the thread: Komatsu machines in Asia often use metric threads; export machines vary.
- Older Komatsu machines (pre-2000s era) may carry ball-lock couplings — verify the face type.
Replacement and Service Guidance
For Komatsu machines, the model series and build year matter: coupling profile changed from ball-lock to flat-face across the range. Provide model + serial + photo for an accurate match.
FAQ
Do Komatsu excavators use flat-face?
Modern Komatsu excavator auxiliary lines use flat-face (ISO 16028 style) couplings.
What threads do Komatsu machines use?
It varies by market: metric threads are common on machines for Asia and Europe, while North American machines often use ORFS or NPT. Verify per machine.
Are Komatsu couplings standard?
Yes — Komatsu uses industry-standard profiles, so aftermarket flat-face or ISO 7241 couplings can be sourced.
Need Couplings for Komatsu Machines?
Send the machine model, coupling profile or a photo — we confirm the match within 24 hours.