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Komatsu PC138USLC-11

Configuration: 600 mm triple-grouser shoes, 4,600 mm one-piece boom, 2,500 mm arm, 0.51 m³ SAE heaped bucket; tight tail swing; EPA Tier 4 Final

26 sourced values · Sources: Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24

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Dimension diagram

A B C D E F G Side viewFront view Schematic, not to scale
AOverall length7,385 mm
BOverall height2,815 mm
CTrack length on ground3,140 mm
DGround clearance395 mm
EOverall width2,590 mm
FTrack gauge / tread1,990 mm
GShoe / track width600 mm

Weights

SpecValueSource
Operating weight15,732 kg
Published: 15,732 kg
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
600 mm triple-grouser shoes (34,673 lb). 500 mm road liner: 15,682 kg; 700 mm: 15,932 kg. The inclusion note does not mention the blade (blade assembly 848 kg listed separately); product page range is 15,682–17,032 kg.

Dimensions

SpecValueSource
Overall length7,385 mm
Published: 7,385 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. A, transport posture, 2,500 mm arm. 3,000 mm arm: 7,285 mm.
Overall width2,590 mm
Published: 2,590 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. D; width of crawler with 600 mm shoes (L) is also 2,590 mm. Blade width 2,590 mm.
Overall height2,815 mm
Published: 2,815 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. E, to top of cab, incl. grouser.
Transport height2,850 mm
Published: 2,850 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. B, to top of boom, 2,500 mm arm. 3,000 mm arm: 3,210 mm.
Track gauge / tread1,990 mm
Published: 1,990 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. K.
Track length on ground3,140 mm
Published: 3,140 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. I.
Track length (overall)3,870 mm
Published: 3,870 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. J.
Shoe / track width600 mm
Published: 600 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Grouser height 20 mm. 500 mm road liner and 700 mm triple grouser also listed.
Ground clearance395 mm
Published: 395 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. G, minimum. Counterweight clearance 900 mm.
Tail swing radius1,545 mm
Published: 1,545 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Dim. H.

Undercarriage / tires

SpecValueSource
Undercarriage typeCrawler (steel tracks)
Published: Crawler (steel tracks)
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Track rollers / shoes per side8 track rollers, 2 carrier rollers, 46 shoes per side
Published: 8 track rollers, 2 carrier rollers, 46 shoes per side
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24

Ground pressure

SpecValueSource
Ground pressure37.86 kPa
Published: 37.86 kPa
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
ISO 16754, 600 mm shoes (0.39 kgf/cm², 5.49 psi). 500 mm: 45.29 kPa; 700 mm: 32.87 kPa.

Engine

SpecValueSource
Engine modelKomatsu SAA4D95LE-7
Published: Komatsu SAA4D95LE-7
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
EPA Tier 4 Final.
Net power72.5 kW
Published: 72.5 kW
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
ISO 9249 / SAE J1349 (97.2 HP). 67.8 kW with fan at max speed.
Gross power72.6 kW
Published: 72.6 kW
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
SAE J1995 (97.3 HP).
Displacement3.26 L
Published: 3.26 L
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Rated speed2,050 rpm
Published: 2,050 rpm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24

Hydraulics

SpecValueSource
Pump / aux flow242 L/min
Published: 242 L/min
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Main pump maximum flow (64 gal/min). Max auxiliary flow also 242 L/min.
System / relief pressure34.8 MPa
Published: 34.8 MPa
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Implement circuits (5,050 psi).

Performance

SpecValueSource
Max digging depth5,480 mm
Published: 5,480 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
2,500 mm arm. 3,000 mm arm: 5,900 mm.
Max reach (at ground)8,180 mm
Published: 8,180 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
2,500 mm arm. Max digging reach 8,300 mm.
Dump height / clearance6,840 mm
Published: 6,840 mm
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Max dumping height, 2,500 mm arm. Max digging height 9,340 mm.
Breakout / digging force93.2 kN
Published: 93.2 kN
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
Bucket digging force, ISO, 2,500 mm arm. SAE 81.4 kN. Arm crowd ISO 61.8 kN.
Max travel speed5.1 km/h
Published: 5.1 km/h
Komatsu PC138USLC-11 brochure, AESS895-0326-V5 (© 2026 Komatsu America Corp., Tier 4 Final). Retrieved 2026-10-24
High, auto-shift (3.2 mph). Low 2.9 km/h.

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