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Komatsu WB146-5 vs Komatsu WB156-5
Verdict: Komatsu WB146-5 vs Komatsu WB156-5
The Komatsu WB146-5 and the Komatsu WB156-5 are both backhoe loaders — here is how they stack up on the figures that matter. Komatsu WB156-5 leads on rated power with 99 hp against 92 hp. Komatsu WB146-5 is the lighter machine (7,298 kg vs 7,498 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the Komatsu WB156-5 for outright pulling power, or the Komatsu WB146-5 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Komatsu
85
Fit score
Best match
Clear
Komatsu
85
Fit score
Best match
Clear
Rated power
92 hp
99 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
KomatsuReference
KomatsuReference
liquid-cooledReference
liquid-cooledReference
Steering
hydrostatic powerReference
hydrostatic powerReference
Variants
WB146PS-5
powershift transmissionReference
—
WB156PS-5
—
powershift transmissionReference
Engine
Engine (gross)
68.6 kWReference
73.8 kWReference
Engine
65.6 kWReference
70.8 kWReference
Displacement
4.5 LReference
4.5 LReference
Power
65.6 kWReference
70.8 kWReference
Power (gross)
68.6 kWReference
73.8 kWReference
Air cleaner
dryReference
dry with double elementsReference
Compression
18:1Reference
18:1Reference
Rated RPM
2200Reference
2200Reference
Torque
406.8 NmReference
427.1 NmReference
Torque RPM
1500Reference
1500Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Starter power
3.2 kWReference
3.2 kWReference
Oil capacity
28.0 LReference
28.0 LReference
Coolant capacity
14.0 LReference
14.0 LReference
Transmission
Gears
4 forward and 3 reverseReference
4 forward and 3 reverseReference
Capacities
Fuel
149.9 LReference
149.9 LReference
PTO & Hydraulics
Hydraulic system
96.9 LReference
96.9 LReference
Type
full powershift with power shuttleReference
closed center load sensingReference
Capacity
96.9 LReference
96.9 LReference
Pressure
245.0 barReference
245.0 barReference
Total flow
165.0 lpmReference
165.0 lpmReference
Dimensions
Wheelbase
218 cmReference
218 cmReference
Weight
7298 kgReference
7498 kgReference
Length
744 cmReference
749 cmReference
Width
236 cmReference
236 cmReference
Height
375 cmReference
375 cmReference
Height (cab)
294 cmReference
294 cmReference
Operating weight
7298 kgReference
7498 kgReference
Max weight
17641 kgReference
17641 kgReference
Ground clearance
43 cmReference
43 cmReference
Backhoe & Loader
Dig depth
174 to 218 inchesReference
186 to 235 inchesReference
Dump angle
114 cmReference
114 cmReference
Electrical
Charging system
alternatorReference
alternatorReference
Charging amps
95Reference
95Reference
Battery CCA
860Reference
860Reference
Battery volts
12Reference
12Reference
Battery AH
100Reference
100Reference
Attachment overview
Komatsu Backhoe
Backhoe type
Komatsu BackhoeReference
Komatsu BackhoeReference
Digging depth
441 cmReference
472 cmReference
Digging depth (extended stick)
553 cmReference
596 cmReference
2-Foot flat digging depth
436 cmReference
467 cmReference
2-Foot flat digging depth (extended stick)
548 cmReference
591 cmReference
Reach from pivot
574 cmReference
604 cmReference
Reach from pivot (extended stick)
675 cmReference
716 cmReference
Loading height
368 cmReference
375 cmReference
Loading height (retracted stick)
365 cmReference
375 cmReference
Loading height (extended stick)
436 cmReference
444 cmReference
Bucket force
6125 kgReference
6125 kgReference
Dipperstick force
4005 kgReference
3915 kgReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.