Pierce-Arrow Model 66 History
The colossal Model 66 (1910–1918) — its T-head six was for a time the largest engine ever fitted to a production car.
Photo: “Pierce-Arrow Model 66 (7756068126).jpg” by Greg Gjerdingen from Willmar, USA / Wikimedia Commons, licensed under CC BY 2.0. Cropped to 16:9.
Start with a make and model. Add a year where a detailed guide is available.
Model history available. Detailed year guides are not published for this model.
Browse this model's history and yearsHistory
The Model 66 debuted for 1910 as the flagship of Pierce-Arrow's new six-cylinder range, named for the rated horsepower of its enormous T-head inline-six. It is regarded as one of the greatest American cars of the brass and nickel era — a vast, stately machine for the very wealthy.
The engine grew over the model's life: roughly 714 cubic inches at launch, it expanded to around 825 cubic inches by 1913, making it for a time the largest-displacement engine offered in any production passenger car. About 1,250 Model 66s were built across the 1910–1918 run, and only a handful survive today, making it one of the most coveted of all pre-war American automobiles.
Generations
Model 66 · T-head six flagship
Photo: “Pierce-Arrow Model 66 (7756068126).jpg” by Greg Gjerdingen from Willmar, USA / Wikimedia Commons, licensed under CC BY 2.0. Cropped to 16:9.
Pierce-Arrow's six-cylinder flagship, powered by a T-head inline-six that grew to around 825 cubic inches — for a time the largest engine in any production car.
1913 Photo: “1913 Pierce-Arrow 66-A-1 Touring 7-Passenger (1418350745).jpg” by brewbooks from near Seattle, USA / Wikimedia Commons, licensed under CC BY-SA 2.0. Cropped to 16:9.
1916 Photo: “1916 Pierce-Arrow Model 66 (7756432354).jpg” by Greg Gjerdingen from Willmar, USA / Wikimedia Commons, licensed under CC BY 2.0. Cropped to 16:9.
1917 Photo: “1917 Pierce-Arrow 66 runabout (15790038262).jpg” by James Case from Philadelphia, Mississippi, U.S.A. / Wikimedia Commons, licensed under CC BY 2.0. Cropped to 16:9.
Related models
Collect the nameplate
Find a scale model of the Pierce-Arrow Model 66
Search Amazon across available years, colors, and scales. Exact releases vary, so confirm the listing before ordering.