Attachments for the Komatsu PC138US-11 weight range
Weight Class: Large Excavator (10–30 t) Operating Weight: 14,100 – 15,800 kg
- Bucket line
- DB - heavy duty digging bucket 500–1,000 mm wide
- We usually reply within 1 working day
- We check the fit before we send the quote
- Every offer names the dispatch week
- If a bracket we made is wrong and does not fit your machine, we replace it.
How is the attachment mounted on this machine?
Tell us what is on the machine now. It narrows the sizes we show and goes with your enquiry. It does not confirm fit: we check the bracket before we send the quote.
Ask for a price with this answer
The short version for the PC138US-11
Families to look at first
- DBF - flat-top digging bucket for quick coupler 500–1,000 mm
- GD - rigid grading & ditching bucket, 12–40 t 1,600–2,000 mm
- GDH - heavy duty hydraulic grading & ditching bucket 1,600–2,000 mm
Quick coupler brackets at this weight
- S45
- S50
- S60
- S70
- MS08
- MS10
- MS21
- CW10
- CW20
- CW30
- CW40
- OQ45
- OQ60
- OQ65
- OQ70
- HS08
- Klac F
- M10
- M18
- M26
- SW33
- SW48
Brackets we build attachments with in this weight range. Not a confirmed fit.
Still to check
Pin diameter, pin spacing, inside width between the stick ears, and any quick coupler on the machine.
Catalogue sizes for the PC138US-11
Each size below has a catalogue row rated for a carrier of 14,100 – 15,800 kg operating weight. Tell us which sizes you want and we reply with an offer.
Each family shows its candidate models by operating-weight range.
The attachments buyers in your market ask for first, sized for the PC138US-11.
On a narrow screen the table scrolls sideways.
Buckets
Tools
| Attachment | Sizes | Heaped capacity ISO 7451 [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
Non-bucket attachments | ||||
| TH - hydraulic thumb for excavator | TH-16 | 700 | 310 | |
| AC - excavator asphalt cutters | AC-18 | 99 | ||
| MR - heavy duty excavator multi-ripper | MR-17 | 1,300 | 415 | |
| RIP - heavy duty ripper | Ripper-C | 280 | ||
| DuoRIP - double ripper for root extraction | Duo-Ripper-18 | 450 | 380 | |
| GRB - excavator grading beam | GRB midi · 6 variants, GRB maxi · 6 variants | 2,000–3,000 | 216–680 | |
Other mini-ex attachments | ||||
| LRS - short land rakes for mini-excavators | LRS-15 | 1,980 | 380 | |
Quick couplers
Coupler sizes within this machine's published weight range. Not a confirmed fit.
| Attachment | Sizes | Heaped capacity ISO 7451 [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
| QC-S - S-System Scandinavian quick-coupler Start here Price & lead time Get price & lead time S-System (Scandinavian) | QC-S60, QC-U-S60 | 115 | ||
| CW - CW-System compatible quick-coupler CW-System | CW-20, CW-20 S, CW-30, CW-30 S, CW-U-20, CW-U-20 S, CW-U-30, CW-U-30 S | 180–230 | ||
| QC-HS / QC-MS - MS-System compatible quick-coupler MS system | QC-HS-10, QC-MS-10, QC-U-HS-10 | 200 | ||
| QC-PG - pin-grabber quick-coupler for factory brackets Pin-grabber | QC-PG-65, QC-PG-70, QC-ML-M-60, QC-ML-M-65, QC-U-PG-65, QC-U-PG-70 | 105–260 |
Welded to EN ISO 3834-2. Agree it as a standing term of supply and the EN 10204 3.1 certificate ships with every attachment. You also get the CE declaration of conformity for every quick coupler and hydraulic attachment. See the certificates.
Message us on WhatsApp Photos and voice notes are welcome.Before you order: check the interface
The weight class of the Komatsu PC138US-11 sizes the attachment. It does not tell you the pin diameter, the pin spacing or the stick width, and those decide whether an attachment fits. Measure them on the machine, or send us the measurements of the bucket it runs today.
At this weight the choice is mostly about the material. A general purpose bucket suits soil and gravel, a reinforced bucket with thicker wear parts suits mixed ground and broken rock, and the quick coupler on the machine sets the bracket every attachment needs.
Quick coupler brackets at this weight
In our model tables, the attachments listed for the Komatsu PC138US-11 at its weight are built with these brackets. Each code opens the models that list it.
Brackets we build attachments with in this weight range. Not a confirmed fit.
- Measure the diameter of both bucket pins.
- Measure the distance between the pin centres.
- Measure the inside width between the stick ears.
- If the machine runs a quick coupler, note its make and type.
What these terms mean:
How to choose an attachment for the job:
Send me the spec sheet for my machine
Pick a bucket line and we email you its spec sheet, with the sizes we build for the PC138US-11.
Send this answer to a colleague or dealer
Komatsu PC138US-11: DBF - flat-top digging bucket for quick coupler (DBF-160). Shortlisted by operating weight
Sizes are matched to the published operating weight of the PC138US-11.
- Weight Class
- Large Excavator (10–30 t)
- Operating Weight
- 14,100 – 15,800 kg
- Family-owned group, founded in 1996
- More than 50,000 attachments delivered
- Built in our own factory in Poland
Operating weight as published by Komatsu, retrieved 2026-09-10. Source
Komatsu PC138US-11: machine data
- Operating weight
- 14,100 – 15,800 kg
- Engine power
- 72.6 kW
- Maximum digging depth
- 5,900 mm
- Maximum dump height
- 7,350 mm
- Bucket breakout force
- 93.2 kN
- Arm crowd force
- 61.8 kN
- Max reach
- 8,600 mm maker's document (komatsu.eu)
- Arm length
- 2,500–3,000 mm maker's document (komatsu.eu)
- Main pump flow
- 242 l/min maker's document (komatsu.eu)
- Bucket capacity
- 0.72 m³ maker's document (komatsu.eu)
- Lift capacity
- 2,140 kg maker's document (komatsu.eu)
- Transport width
- 2,490 mm maker's document (komatsu.eu)
As published by Komatsu, retrieved 2026-09-17. Source
- Pin diameter
- 65 mm Source: Tuff Buckets. From a dealer's table. It does not say which arm or quick coupler was fitted.
A guide only. Measure the pins before you order.
What the PC138US-11 figures mean for its attachments
- The main pump delivers up to 242 l/min at 348 bar. That is the pump output of the whole machine, not the flow an attachment gets.
- It digs down to 5,900 mm. That is the deepest trench it can open.
- Its maximum reach is 8,600 mm.
- It dumps at up to 7,350 mm, so a truck or skip side has to sit below that height.
- Komatsu offers arms from 2,500 to 3,000 mm. A longer arm reaches further, a shorter one handles a heavier bucket.
- Komatsu lists a bucket capacity of 0.72 m³.
- Bucket breakout force is 93.2 kN and arm crowd force 61.8 kN. That is the force a bucket or ripper works with at the tooth.
- Komatsu gives a lifting capacity of 2,140 kg. Check a heavy grab or hammer, plus its load, against the full load chart.
- For transport it measures 7,260 x 2,490 x 3,150 mm (length, width, height).
- Engine power is 72.6 kW.
Figures as published by Komatsu in its own documents.
How the PC138US-11 compares with its neighbours
The nearest models by weight, with the difference to the PC138US-11 in parentheses where both makers publish the figure.
| Model | Operating weight | Max dig depth | Main pump flow |
|---|---|---|---|
| PC138US-11 | 14.1 t | 5,900 mm | 242 l/min |
| Komatsu PW160-7 | 14.2 t (+0.1 t) | 5,770 mm (-130) | 308 l/min (+66) |
| Komatsu PW148-11 | 14.3 t (+0.2 t) | 5,900 mm | 244 l/min (+2) |
| Hyundai HX140LC | 14.05 t (-0.05 t) | 4,950 mm (-950) | 253.6 l/min (+11.6) |
Figures as each maker publishes them. A difference is shown only where both machines have a published value.
PC138US-11: build years and variants
Build years: 2022–2026
Variants
- PC138US-11E0 (2022–2026)
Years and variants as listed in the LECTURA Specs database.
PC138US-11: what the brochure names
Features Komatsu names in its own brochure for the PC138US-11. Some of them may be optional, so check the machine's spec before you order.
- A short tail swing, for work next to walls and traffic.
- Automatic engine idle when the controls are left alone.
- An engine that meets EU Stage V.
- A load-sensing hydraulic system.
From Komatsu's published brochure. We keep the source document on file.
Other Komatsu models of a similar weight
Other makes of a similar weight
Operating weight within 2 t of the Komatsu PC138US-11.
Other Komatsu models with the same coupler brackets
Our model tables give these machines the same quick coupler brackets.
Why buy from the factory
- Cutting, machining, welding and painting on one site, our own factory in Poland, EU
- More than 50,000 attachments delivered since 2008
- A record for every serial number, so the spare parts match your attachment
Need Custom Specifications?
We can manufacture attachments to your exact pin spacing and requirements for Komatsu PC138US-11.
Questions about the PC138US-11
- What bucket size fits the PC138US-11?
- Komatsu lists a bucket capacity of 0.72 m³ for it.
For publishers: cite or embed this table
Cite this table as https://sieruta.com/en/fit/komatsu/komatsu-pc138us-11, figures as of 2026-09-10.
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Machine makes and model names belong to their owners. Sieruta is not affiliated with them. We use the names only to show which machines we offer attachments for, by operating weight.