HD7

Registry Insight- HD7 Crawler

Built between 1940 and 1950 the HD7 was powered by a General Motors 3 cylinder diesel measuring 213Cubic Inches with a 3-71 Supercharger. Power was rated at 57 drawbar hp and 68.68 belt hp with machine weight without implements being 6350kg. Production was at the Springfield Illinois plant with standard gauge models measuring 48" and HD7W wide gauge variants measuring 63". 

The Machine shown below is a HD7W variant fitted with a dozer blade and winch spotted at a rally in Victoria.

Below is a list of production years for serial numbers of HD-7 Crawlers which includes HD7W and HD-7 Military Machines.

1940-     3-502

1941-     503-1136

1942-     1137-2980

1943-     2981-5752

1944-     5753-8948

1945-     8949-12090

1946-     12091- 13077

1947-     13078-15121

1948-     15122-16751

1949-     16752-18085

1950-     18086-18505

Below is a list of the currently known HD7's, if you own one or know of any please let us know. A registration form can be found here.

MODEL YEAR SERIAL ENGINE STATE CONDITION HD7W  1942 2846   NSW under resto HD7W  1943 4442   QLD running HD7W  1943 5470   NSW running HD7W  1943 5577   NSW under resto HD7W  1944 5831   QLD restored HD7W 1948 17834   VIC restored HD7       NSW unrestored