Komatsu HD605-7(S/N 7001-UP)

The Komatsu HD605-7 (S/N 7001-UP) is a rigid-frame, mechanical-drive off-highway dump truck built for open-pit mining, quarrying, and large-scale earthmoving, sitting in Komatsu's roughly 60-metric-ton nominal payload class. It is powered by the Komatsu SAA6D170E-3 per the factory shop manual for this serial range (some sales brochures for the same truck cite SAA6D170E-5 instead — confirm engine suffix from the unit's own tag), a water-cooled, turbocharged and air-to-air aftercooled inline-six diesel with common-rail injection and cooled EGR, producing about 552 kW/740 HP gross (533 kW/715 HP net) at 2,000 rpm and meeting EPA Tier 3/EU Stage IIIA emissions. Depending on market and equipment configuration, sources place maximum gross vehicle weight in a roughly 110,000-113,000 kg (242,900-249,500 lb) range, with empty weight varying from about 46 to 50 metric tons and a consistent rated payload of 63 metric tons (69.4 US tons) hauled in a 40.0 m3 heaped V-shape body. Drivetrain is a 7-speed, fully automatic K-ATOMiCS planetary transmission behind a 3-element torque converter, riding on independent hydropneumatic suspension with wet, oil-cooled multiple-disc brakes that double as a hydraulic retarder. The S/N 7001-UP designation covers the base Tier 3 production run of the '-7' generation, offered with configuration options such as ABS, ASR, air-conditioned cab, and cold- or dusty-area arrangements; it is a distinct build from the earlier mechanical-era HD605-5 (S/N 1001-UP), the parallel overseas-emissions HD605-7E0 (S/N 8001-UP), and the export HD605-7R built without cooled EGR (S/N 15001-UP), and sources on those variants should not be blended with 7001-UP data.

Moving from the HD605-5 to the HD605-7 generation, Komatsu added heavy-duty common-rail fuel injection, cooled EGR, and electronically modulated K-ATOMiCS shifting with a skip-shift function, plus Automatic Idling Setting System, Automatic Retard Speed Control, KOMTRAX/KOMTRAX Plus satellite telematics with an onboard payload meter, and a higher-tensile dump body steel - changes driven largely by tightening Tier 3/Stage IIIA emissions rules and a push for lower operating cost per ton hauled. The line was later succeeded by the HD605-8, which stepped up to the SAA6D170E-7 engine at roughly 578 kW/775 HP and added Komatsu's Traction Control System under Tier 4 Final emissions rules, while overseas markets kept parallel ecot3 (7E0) and no-EGR (7R) variants running in parallel for longer. In today's used-equipment and parts market, HD605-7 (S/N 7001-UP) trucks remain sought after precisely because their Tier 3, EGR-based drivetrain predates the diesel particulate filter and SCR aftertreatment complexity of Tier 4 successors, making them comparatively straightforward and inexpensive to keep running - which sustains steady demand for good used units and for remanufactured transmissions, final drives, wet-brake packs, and hydropneumatic suspension components as fleets age out of primary mining service into secondary quarry and construction use.

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.