Komatsu D375A Large Dozer

Information

Additional information

Make	Komatsu
Model	D375A
Weight	73 t

Equipment Overview

The Komatsu D375A is an large dozer built for heavy mining and construction earthmoving, part of Komatsu’s D375 large dozer family for the Australian and New Zealand market. It has 455 kW (609 hp) of net forward power, an operating weight of 72,900 kg with the strengthened Semi-U dozer blade and giant ripper fitted, and an 18.5 m³ blade capacity, suited to mining, heavy construction, and haul road maintenance where high production and durability matter.

Power comes from the Komatsu SAA6D170E-7 engine, a 6-cylinder, 23.15-litre unit that is U.S. EPA Tier 4 Final emissions certified and delivers over 20% more power in reverse — 558 kW (748 hp) — for faster cycle times. The Komatsu TORQFLOW transmission pairs a lock-up torque converter with a planetary gear, multiple-disc-clutch gearbox, while wet multiple-disc steering clutches and brakes, spring-loaded and hydraulically released, handle directional control. A giant variable single-shank ripper or a hydraulically controlled three-shank ripper is available for tough ripping work.

Technical Specifications

Specification	Value
Engine	Komatsu SAA6D170E-7, 23.15 L, 6-cylinder, turbocharged, air-to-air aftercooled, cooled EGR
Power Output	455 kW / 609 hp (net forward, ISO 9249/SAE J1349 @ 1,800 rpm); 558 kW / 748 hp net in reverse
Emission Standard	U.S. EPA Tier 4 Final
Transmission	Komatsu TORQFLOW (lock-up torque converter with planetary gear, multiple-disc clutch), 3F/3R
Drive Type	Wet multiple-disc steering clutches and brakes, spring-loaded, hydraulically released; PCCS joystick control
Operating Weight	72,900 kg (Semi-U blade, giant ripper, 610 mm ES shoes)
Max Travel Speed	11.8 km/h forward / 15.8 km/h reverse (3rd gear)
Blade Capacity	18.5 m³ (Semi-U, standard)
Blade Width	4,775 mm (Semi-U, standard)
Ground Pressure	132.1 kPa (Semi-U blade, giant ripper, 610 mm ES shoes)
ROPS	ISO 3471