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Komatsu WA800-8

Configuration: Standard boom, excavating bucket (spade nose, teeth and segments), 11.5 m³ heaped; 45/65R45 (L-5) tires, ROPS/FOPS cab; EPA Tier 4 Final

25 sourced values · Sources: Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25

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Dimension diagram

A B C D E F Side viewFront view Schematic, not to scale
AOverall length15,205 mm
BOverall height5,600 mm
CWheelbase5,600 mm
DGround clearance485 mm
EOverall width4,935 mm
FTrack gauge / tread3,350 mm

Weights

SpecValueSource
Operating weight115,530 kg
Published: 115,530 kg
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Standard boom, excavating bucket (254,700 lb). Incl. lubricant, coolant, full fuel, ROPS cab, operator.

Dimensions

SpecValueSource
Overall length15,205 mm
Published: 15,205 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Bucket on ground.
Overall width4,935 mm
Published: 4,935 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Bucket width. Width over tires 4,585 mm.
Overall height5,600 mm
Published: 5,600 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Dim. G, ROPS cab. Top of stack (F) 5,040 mm.
Wheelbase5,600 mm
Published: 5,600 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Dim. A.
Track gauge / tread3,350 mm
Published: 3,350 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Tread width, centre to centre.
Ground clearance485 mm
Published: 485 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Dim. D.
Turning radius9,880 mm
Published: 9,880 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Minimum, at centre of outside tire.

Undercarriage / tires

SpecValueSource
Undercarriage typeWheeled, articulated
Published: Wheeled, articulated
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Number of axles2
Published: 2
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Wheels (count)4
Published: 4
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Four-wheel drive.
Tire size45/65R45 (L-5)
Published: 45/65R45 (L-5)
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Tire used for the dimension table.

Ground pressure

SpecValueSource
Ground pressureNot publishedKomatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Not published in the brochure.

Axle loads

SpecValueSource
Axle load, front (unladen/operating)Not publishedKomatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Not published in the brochure.
Axle load, rear (unladen/operating)Not publishedKomatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Not published in the brochure.

Engine

SpecValueSource
Engine modelKomatsu SAA12V140E-7
Published: Komatsu SAA12V140E-7
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
EPA Tier 4 Final.
Net power637 kW
Published: 637 kW
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
ISO 9249 / SAE J1349 (854 HP).
Gross power638 kW
Published: 638 kW
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
SAE J1995 (856 HP).
Displacement30.48 L
Published: 30.48 L
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Rated speed2,025 rpm
Published: 2,025 rpm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25

Hydraulics

SpecValueSource
Pump / aux flow920 L/min
Published: 920 L/min
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Work equipment, 4 x 230 L/min piston pumps at rated rpm (sum). Steering 2 x 220 L/min, listed separately.
System / relief pressure31.4 MPa
Published: 31.4 MPa
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Work equipment (4,554 psi); steering also 31.4 MPa.

Performance

SpecValueSource
Max travel speed22.9 km/h
Published: 22.9 km/h
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
3rd forward, P-mode, 45/65-R45 tires (14.2 mph). Reverse 3rd 23.6 km/h.
Bucket capacity11.5 m³
Published: 11.5 m³
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Heaped (15.0 yd³). Struck 9.9 m³.
Tipping load63,420 kg
Published: 63,420 kg
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Static, 40° full turn. Straight: 71,500 kg.
Breakout / digging force≈ 690 kN
Published: 70,360 kgf
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
155,117 lb as printed; no kN figure published.
Dump height / clearance4,715 mm
Published: 4,715 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Dump clearance at max height and 45°, at end of tooth.
Lift / hinge-pin height6,975 mm
Published: 6,975 mm
Komatsu WA800-8 brochure, AESS950-00 (EPA Tier 4 Final). Retrieved 2026-10-25
Dim. B, hinge-pin height at max height.

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