Komatsu 210M(QSK19 Engine)

The Komatsu 210M is a rigid-frame, mechanical-drive rear-dump haul truck built originally under the Dresser Haulpak brand, sized to a gross vehicle weight of about 95 t (210,000 lb), a figure the model number itself represents, following the naming convention Dresser used across its M-series line (140M, 210M, 310M/325M/330M). Payload is generally cited in the 41-45 t (45-50 ton) range, with some configurations and body options listed as high as 54 t (60 ton) depending on gearing and material density. This configuration is fitted with the Cummins QSK19, an electronically controlled inline six-cylinder diesel of roughly 19 liters displacement rated across a 336-597 kW (450-800 hp) band depending on the power rating applied; other 210M trucks in the field originally shipped with mechanically governed Cummins KTA-series or Detroit Diesel power instead, so confirm which engine a given unit carries before ordering parts. The 210M entered production in the 1980s as a replacement for three earlier Haulpak models covering the same payload range, continued through the 1988-1994 Komatsu-Dresser joint venture, and carried on as a Komatsu-built machine after Komatsu took full ownership in 1994. Power runs through a powershift transmission with electronic shift control to a rigid two-axle chassis, with body and final-drive gearing offered in more than one configuration for different haul-road grades and material densities.

Across its production run the 210M line moved from mechanically governed diesels and largely air-actuated controls toward electronic transmission control and hydraulic actuation, and in this configuration toward the electronically managed QSK19, which tightens fuel control and supports later emissions compliance compared with the mechanical engines the model originally carried. The Haulpak name was retired around 1998-1999 as Komatsu folded the line into its own HD-series numbering; models such as the HD405 and HD465 occupy a similar 36-50 t (40-55 ton) payload bracket today, so the 210M sits as a direct ancestor of that lineup rather than a stand-alone dead-end design. In the used and parts market this matters because working 210M trucks are long past their original build date and have typically been through at least one driveline or engine rebuild. A QSK19-equipped example specifically represents a repower or late-production unit, and its transmission, brakes, and final drives are serviced on the same fundamentals as the wider Komatsu/Dresser mechanical-truck family even though the engine bay is a generation newer than the chassis around it.

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.