Komatsu D575A-2(S/N 10001-UP)

The Komatsu D575A-2 (S/N 10001-up) is a mining-class crawler dozer built around the SA12V170-1 turbocharged V12 diesel, rated at roughly 784 kW (about 1,050 hp) gross. This serial range covers the original "SR" Super Ripper configuration: a single semi-U blade paired with a rear single-shank ripper, riding on a heavy-duty, wide-gauge undercarriage sized for continuous overburden work. Operating weight in this trim runs around 129 t (about 284,800 lb). Full production began in 1991 following field trials, making the D575A-2 the first true production generation of Komatsu's largest dozer line, after Komatsu had shown a proof-of-concept large-frame dozer publicly in the early 1980s. A parallel, later serial block (from roughly S/N 10012) carried a dedicated "SD" Super Dozer trim with a larger blade and no ripper; that variant runs heavier and is a distinct configuration from the S/N 10001-up ripper machine covered here. The D575A-2 series was produced into the early 2000s before Komatsu introduced the D575A-3 (S/N 10101-up) as its direct successor.

Across the D575A-2 production run and into the D575A-3 that followed, Komatsu's changes centered on the powertrain controls and operator environment rather than a change in basic size class: the A-3 generation added electronically managed powershift/torque converter control, an updated operator cab, and structural revisions to the chassis and undercarriage, while keeping the same overall mission as a mine-site overburden and pit-development dozer. Very few D575A-2 SR machines were ever built, so the model survives today mainly in active mine fleets and in the parts and rebuild market rather than as a common used-equipment listing. Because whole-machine resale is rare, most demand centers on major driveline components: engine top-end parts, torque converter and final drive assemblies, undercarriage wear parts, and blade/ripper hydraulics, which is where sourcing genuine or remanufactured components matters most for owners keeping these dozers running past a single overhaul cycle.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.