HPOCA National Organization



Formation of the Hart-Parr Oliver Collectors Association (HPOCA)

This National organization was formed to to help preserve the history of Hart-Parr/Oliver and associated companies acquired by Hart-Parr and Oliver. Also to aid collectors of Hart-Parr and Oliver tractors, combines and implements in restoration and preservation, and to promote the collection and care of Hart-Parr and Oliver machinery, memorabilia and other related items.



The Hart-Parr Oliver Collectors Association is the ultimate source of info for true tractor enthusiasts! As an official member of the Hart-Parr Oliver Collectors Association you will enjoy the premier magazine dedicated entirely to the Hart-Parr, Oliver and Cletrac tractors and equipment line.

Filled with fascinating features, historical highlights, detailed restorations, technical tips, upcoming event listings, and classified ads, the Hart-Parr Oliver Collector is your link to the Hart-Parr and Oliver community of collectors and enthusiasts.  To learn more about the Hart Parr Oliver Collector magazine, be sure to visit our magazine page.


Join the HPOCA today, and you'll get:


Membership rates are $35 for US subscriptions and $40 for foreign subscriptions.

Join by calling toll free at 888.400.4962. Outside the USA, call 937.610.0236