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The model archive
Rock Island
Explore 3 farm tractor models. Follow a model into its engine specifications, transmissions, dimensions, historical photographs, and available test records.
About Rock Island
Rock Island Plow traced its roots to Buford & Tate in 1855. It expanded through implements and Heider tractors before J. I. Case acquired it in 1937.
- Beginning
- 1855 predecessor business
- Founder / origin
- Buford & Tate and later Rock Island operators
- Known for
- Plows and farm tractors
- Sale / later history
- Purchased by J. I. Case in 1937
History and legacy
Related catalog accounts differ on the year of the Heider purchase, so it is described without a precise date here. Later tractor designs faced Depression-era difficulties before the Case acquisition.
Sources & further reading
History reviewed 2026-10-20.
Showing 3 of 3 models
F 18-35
1927–1937
38 hp
Engine estimate from belt power
2WD Only
Drive
G 15-25
1927–1928
27 hp
Engine estimate from belt power
2WD Only
Drive
G2 15-25
1929–1932
27 hp
Engine estimate from belt power
2WD Only
Drive
Index power values can include estimates derived from belt or PTO power. They are identified on each model card and are not interchangeable with a measured engine rating. Model years and missing values follow the source index.