Haulpak

The origins of the Haulpak line began with the purchase of R. G. LeTourneau's construction machinery business in 1953 by Westinghouse Air Brake Company.

Wabco subsequently added motor graders to their product line by purchasing J.D.

[1] The Haulpak line of mining and quarry trucks was the best-performing sector for Wabco for the entire time they owned it and eventually the scrapers, wheel dozers, graders and front end loaders would be discontinued from the Wabco catalogue.

After a Komatsu Limited-Dresser joint venture (KDC) in 1988 was formed, the Haulpak truck line was again (partly) under new ownership, although by 1994 Komatsu had purchased all remaining shares of KDC, making it a wholly owned subsidiary.

[1] While the smaller Komatsu haul trucks are distinctly Japanese in design, the current line of larger trucks can trace their heritage back to American Haulpak design roots.