Attachments for the Komatsu PC138US-11 weight range
- Bucket line
- DB - heavy duty digging bucket500–1200 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.
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.
On a narrow screen the table scrolls sideways.
| Attachment | Sizes | Capacity [dm³] | Width [mm] | Weight [kg] |
|---|---|---|---|---|
| DB - heavy duty digging bucket | DB-160 · 5 width variants | 225–740 SAE | 500–1,200 | 248–455 |
| SDB - heavy duty skeleton DB bucket | SDB-160 · 2 width variants | 543–687 SAE | 1,000–1,200 | 392–448 |
| DBF - flat-top digging bucket for quick coupler | DBF-160 · 5 width variants | 250–773 SAE | 500–1,200 | 256–466 |
| RDBF - flat-top skeleton DBF bucket on rods | RDBF-160 · 2 width variants | 615–773 SAE | 1,000–1,200 | 402–456 |
| DSX - Nordic heavy duty digging bucket | DS-HD-190 · 3 width variants | 570–982 SAE | 800–1,200 | 505–679 |
| GD - rigid grading & ditching bucket, 12–40 t | GD-160 · 3 width variants | 484–615 SAE | 1,600–2,000 | 305–370 |
| GDH - heavy duty hydraulic grading & ditching bucket | GDH-160 · 3 width variants | 456–580 SAE | 1,600–2,000 | 447–510 |
| SB - Dutch profile grading & ditching bucket | SB-160 · 4 width variants | 583–807 SAE | 1,500–2,000 | 357–453 |
| DCB - grading & ditching bucket with round profile | DCB-160 · 3 width variants | 454–577 SAE | 1,600–2,000 | 273–329 |
| PS - Scandinavian universal / grading bucket | PS-160 · 5 width variants | 744–1,128 SAE | 1,600–2,200 | 424–554 |
| PSH - hydraulic swivelling grading bucket | PS-160 · 5 width variants | 1,600–2,200 | ||
| CB - heavy duty hydraulic clamp bucket | CBR-190 | 803 | 1,200 | 631 |
| 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 | |
| RGB - skeleton rod grading & sorting bucket | RGB-160 | 593 SAE | 2,000 | 315 |
| LRS - short land rakes for mini-excavators | LRS-15 | 1,980 | 380 | |
| QC-S - S-System Scandinavian quick-coupler | QC-S60, QC-U-S60 | 115 | ||
| CW - CW-System compatible quick-coupler | 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 | QC-HS-10, QC-MS-10, QC-U-HS-10 | 200 | ||
| QC-PG - pin-grabber quick-coupler for factory brackets | 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 product that carries the CE mark.
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Sizes are matched to the published operating weight of the PC138US-11.
- Weight Class
- Large Excavator (12–30 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
Start here
The attachments buyers in your market ask for first, sized for the PC138US-11.
Which coupler is on your machine?
Pick the system on your machine and we put it in your enquiry. We check the bracket before we send the quote.
How to measure your coupler
Not sure which system it is? Three measurements tell us which bracket you need.
- Measure the diameter of both pins.
- Measure the distance between the pin centres.
- Measure the width between the inside faces of the ears.
If the coupler has a make or type printed on it, send that too.
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)
PC138US-11 at a glance
| Figure | Value | Source |
|---|---|---|
| Max dig depth | 5,900 mm | maker's website (komatsu.eu) |
| Max reach | 8,600 mm | maker's document (komatsu.eu) |
| Max dump height | 7,350 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) |
Only figures the maker publishes for this model. Where a figure is missing, no value is shown.
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.
- 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.
Questions about the PC138US-11
- What bucket size fits the PC138US-11?
- Komatsu lists a bucket capacity of 0.72 m³ for it.
Each family shows its candidate models by operating-weight range.
Digging & sorting buckets
- DB - heavy duty digging bucket
DB-160 · 5 width variants
- SDB - heavy duty skeleton DB bucket
SDB-160 · 2 width variants
- DBF - flat-top digging bucket for quick coupler
DBF-160 · 5 width variants
- RDBF - flat-top skeleton DBF bucket on rods
RDBF-160 · 2 width variants
- DSX - Nordic heavy duty digging bucket
DS-HD-190 · 3 width variants
Ditching, grading, sloping buckets
- GD - rigid grading & ditching bucket, 12–40 t
GD-160 · 3 width variants
- GDH - heavy duty hydraulic grading & ditching bucket
GDH-160 · 3 width variants
- SB - Dutch profile grading & ditching bucket
SB-160 · 4 width variants
- DCB - grading & ditching bucket with round profile
DCB-160 · 3 width variants
- PS - Scandinavian universal / grading bucket
PS-160 · 5 width variants
- PSH - hydraulic swivelling grading bucket
PS-160 · 5 width variants
Non-bucket attachments
- TH - hydraulic thumb for excavator
TH-16
- AC - excavator asphalt cutters
AC-18
- MR - heavy duty excavator multi-ripper
MR-17
- RIP - heavy duty ripper
Ripper-C
- DuoRIP - double ripper for root extraction
Duo-Ripper-18
- GRB - excavator grading beam
GRB midi · 6 variants, GRB maxi · 6 variants
- QC-S - S-System Scandinavian quick-coupler
QC-S60, QC-U-S60
- CW - CW-System compatible quick-coupler
CW-20, CW-20 S, CW-30, CW-30 S, CW-U-20, CW-U-20 S, CW-U-30, CW-U-30 S
- QC-HS / QC-MS - MS-System compatible quick-coupler
QC-HS-10, QC-MS-10, QC-U-HS-10
- QC-PG - pin-grabber quick-coupler for factory brackets
QC-PG-65, QC-PG-70, QC-ML-M-60, QC-ML-M-65, QC-U-PG-65, QC-U-PG-70
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
As published by Komatsu, retrieved 2026-09-17. Source
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.
- 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:
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.
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 product that carries the CE mark.
Do you sell Komatsu machines? Machine dealer supply
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.