Komatsu 330M(S/N A10196-A10211 (DH641) (SA12V140Z-1))

The Komatsu 330M (S/N A10196-A10211, document break DH641) is a rigid-frame, mechanical-drive off-highway haul truck from the early-1990s Dresser Haulpak lineage, built before Komatsu's full buyout of Komatsu Dresser Company. The "M" designation marks mechanical (torque-converter/powershift) drive, not the wheel-motor electric drive used on parallel "E"-badged Haulpak trucks. This exact build is powered by the Komatsu SA12V140Z-1, a V12 turbocharged and aftercooled diesel with mechanical (Zexel PS7S) fuel injection — no electronic engine control, no ECM fault codes. Confirmed factory equipment for this serial range includes 27.00-49 off-the-road tires (bias-ply or radial) and oil-cooled wet-disc brakes at all four wheels doubling as the retarder; operating weight, payload, and dimensions are not publicly documented for this specific serial range and should be pulled from the shop manual before quoting a figure. The immediately prior block, A10190-A10195 (DH637), shares this same chassis, engine, and combined shop manual; the immediately following block, A10212-up (DH643), carries the same SA12V140Z-1 engine in its own separate manual.

Across the broader 330M name, Komatsu-Dresser literature covers more than one distinct serial-numbering scheme — this A10-prefixed mechanical-drive family is separate from older Haulpak-badged 330M trucks numbered under a BFP41 prefix, which are a different production era and should not be cross-referenced for parts or specs. No confirmed factory successor model is documented specifically for the A10196-A10211 range; the Haulpak brand itself was carried by WABCO/LeTourneau-Westinghouse, then Dresser, then the 1988 Komatsu-Dresser joint venture, before folding fully into the Komatsu badge later in the 1990s. What keeps this truck relevant in the used and parts market today is exactly what makes it dated: a fully mechanical drivetrain and mechanical fuel injection with no electronics to fail, which appeals to legacy pits running older fleets that value simplicity and parts commonality over the diagnostics of modern electronically governed Komatsu HD-series trucks.

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.