Komatsu FD25C-17 Specifications
The Komatsu FD25C-17 is a 2.5-ton (2,500 kg / 5,500 lb)
diesel-powered cushion-tire forklift engineered for demanding indoor industrial
operations. It is ideal for warehousing, factory loading, assembly lines,
packaging plants, logistics centers, and similar controlled-surface environments
where maneuverability, stability, and torque-rich diesel power are required.
As a member of Komatsu’s proven 17 Series, the
FD25C-17 incorporates a strengthened chassis, upgraded operator
ergonomics, smooth hydraulic response, and low vibration due to improved
driveline alignment and rubber-isolated engine mounting.
The model uses the Komatsu 4D94LE engine, a 3.3-liter industrial diesel
engine widely recognized for durability, fuel efficiency, low emissions,
consistent torque output, and long overhaul intervals. This engine pairs
with Komatsu’s powershift transmission, hydrostatic steering system,
robust industrial cushion-tire chassis, and a high-efficiency hydraulic
circuit optimized for continuous multi-shift workloads.
Technical Data
Model: Komatsu 4D94LE
Type: inline 4-cyl, 4-stroke diesel
Displacement: 3.26-3.33 L
Bore/stroke: 94x100 mm
Rated output: 36-45 kW (48-60 hp) @ 2400-2600 rpm
Peak torque: 160-190 Nm @ 1600-1800 rpm
Fuel system: in-line mechanical pump
Aspiration: natural
Idle speed: 750 ± 50 rpm
Characteristics: long service life, low vibration, stable torque curve.
Lubrication System
Type: wet-sump, full-pressure
Pump: internal gear
Oil capacity: 6.5-7.5 L
Pressure: 250-450 kPa
Recommended oil: SAE 15W-40 diesel
Filtration: spin-on full-flow
Cooling System
Cooling method: liquid-cooled, pressurized
Coolant capacity: 8-10 L
Thermostat opening: 82°C
Fully open: 95°C
Fan: mechanical
Pump: centrifugal
Pressure: 88-108 kPa
Transmission
Type: torque-converter powershift
Speeds: 1-2 forward / 1-2 reverse
Unladen speed: 18-20 km/h
Laden speed: 16-18 km/h
Fluid capacity: 7-10 L
Fluid: Dexron II/III
Cooling: integrated cooler
Front Axle
Cast-steel industrial housing
Bevel-gear differential
Capacity: 4-5 L
Oil type: 80W-90
Rear Axle
Oscillating type
Oscillation: ±8-10°
Lubrication: 0.8-1.1 L
Brakes
Service brakes: hydraulic drum
Parking brake: mechanical lever
Voltage: 12 V
Battery: 80-100 Ah
Alternator: 35-55 A
Starter: 2.0-2.5 kW
Indicators: oil, coolant temp, charge, glow plug, hour meter, brake
Drive: 2WD (front
drive)
Steering: rear-steer
Frame: welded steel
Counterweight: integrated
Cushion Tires
Front: 21x7-15
Rear: 16x6-10.5
Options: non-marking, high-grip compounds
Features:
- reinforced overhead guard
- anti-slip steps
- protected hydraulic/electrical routing
- vibration-isolated engine mounts
Steering
Type: hydrostatic
Pump output: 7-10 L/min
Rear axle: oscillating
Turning radius: 2.0-2.2 m
Pump: external gear
Flow: 45-60 L/min
Pressure: 17-19 MPa
Tank: 28-35 L
Oil: ISO VG 32/46
Cylinders:
- dual lift
- dual tilt (cushioned)
Attachments supported:
- sideshift
- fork-positioner
- rotator
- clamps
- push-pull
| Service Refill Capacities |
Engine oil: 6.5-7.5 L
Coolant: 8-10 L
Transmission: 7-10 L
Drive axle: 4-5 L
Steer axle: 0.8-1.1 L
Hydraulics: 28-35 L
Mast: simplex / duplex / triplex
Lift heights: 2.5-6.0 m
Free lift: 80-800 mm
Forks: 42-72 in (Class II/III)
Carriage width: 1000-1100 mm
Capacity: 2500 kg @ 500 mm load center
Notes: derates with long forks, high mast heights, heavy attachments
Lift (unladen): 0.45-0.60 m/s
Lift (laden): 0.30-0.45 m/s
Lowering: 100-150 ft/min
Gradeability (unladen): 20-26%
Gradeability (laden): 14-20%
Drawbar pull: 11,000-14,000 N
Length to fork face: 2.55-2.65 m
Width: 1.15-1.20 m
OHG height: 2.05-2.15 m
Wheelbase: 1.55-1.65 m
Ground clearance under mast: 95-115 mm
Ground clearance under chassis: 105-120 mm
Turning radius: 2.0-2.2 m
Aisle width (1000x1200 pallet): 3.30-3.55 m
Max fork height: 2.5-6.0 m
Free lift: 80-800 mm
Operating weight: 3550-4150 kg
Counterweight: 1650-2000 kg
250-hour:
- engine oil/filter
- mast lubrication
- radiator cleaning
- air filter
500-hour:
- Transmission oil
- axle inspection
- hydraulic strainer
1000-hour:
- hydraulic oil/filters
- coolant
- hoses, wiring
2000-hour:
- drivetrain inspection
- steering alignment
- mast structure
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