Komatsu D65EX-12 Crawler Dozer Specs

Category: Crawler Dozers ➔
Manufacturer: Komatsu ➔
Model: D65EX-12 ➔

Komatsu D65EX-12 crawler dozer is a medium-sized tracked bulldozer designed for grading, earthmoving, and site preparation in construction, mining, and roadwork applications. It features a hydrostatic transmission, a six-way power angle tilt blade, and a Komatsu diesel engine configured for efficient operation and responsive control. The D65EX-12 is built for traction, stability, and maneuverability on rough terrain and soft ground. Common uses include land clearing, stockpiling, backfilling, and finish grading. Its undercarriage, blade control, and operator station are engineered to support productive dozing performance in demanding jobsite conditions.

Dimensions

Komatsu D65EX-12 Crawler Dozer Dimensions specifications
Height - Top of Cab	10.40 ft (3.17 m)
Length of Track on Ground	8.80 ft (2.68 m)
Length w/ Blade	17.90 ft (5.46 m)

Engine

Komatsu D65EX-12 Crawler Dozer Engine specifications
Aspiration	Turbocharged
Displacement	673.80 cu in (11,041.63 cu cm)
Engine Model	S6D125E-2
Max Torque	723.60 lbs ft (981.06 nm)
Net Power	190.50 hp (142.06 kw)
Number of Cylinders	6

Hydraulic System

Komatsu D65EX-12 Crawler Dozer Hydraulic System specifications
Pump Flow Capacity	55.50 gpm (210.07 lpm)
Pump type	Double acting piston
Relief Valve Pressure	2987.8 psi

Operating Specifications

Komatsu D65EX-12 Crawler Dozer Operating Specifications specifications
Cooling System Fluid Capacity	13.80 gal (52.23 l)
Engine Oil Capacity	10.10 gal (38.23 l)
Final Drives Fluid Capacity	6.40 gal (24.22 l)
Fuel Capacity	107.30 gal (406.13 l)
Hydraulic Fluid Capacity	14.60 gal (55.26 l)
Operating Voltage	24 volts
Operating Weight	36,453.50 lbs (16,535.05 kg)

Standard Blade

Komatsu D65EX-12 Crawler Dozer Standard Blade specifications
Capacity	7.40 cu yd (5.66 cu m)
Height	56.20 in (142.75 cm)
Width	11.40 ft (3.47 m)

Transmission

Komatsu D65EX-12 Crawler Dozer Transmission specifications
Max Speed - Forward	3.90 mph (6.28 kph)
Max Speed - Reverse	5.00 mph (8.05 kph)
Number of Forward Gears	3
Number of Reverse Gears	3
Transmission Type	Torqueflow Transmission planetary gear

Undercarriage

Komatsu D65EX-12 Crawler Dozer Undercarriage specifications
Ground Contact Area	5,058.50 cu in (82,894.15 cu cm)
Ground Pressure	7.2 psi
Number of Shoes per Side	39
Number of Track Rollers per Side	2
Standard Shoe Size	24.10 in (61.21 cm)
Track Gauge	6.20 ft (1.89 m)

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