The 1940s marked a significant era for Harley Davidson, showcasing some of the brand’s most iconic models. These motorcycles were not just about performance; they became symbols of design and innovation, helping Harley Davidson solidify its place in motorcycle history.
1. 1949 Harley Davidson FL Hydra-Glide
The 1949 Harley Davidson FL Hydra-Glide stood out for its cutting-edge design and comfort. The introduction of the ‘Hydra-Glide’ front forks replaced the previous leading-link forks, providing superior travel and comfort. This model was powered by the ‘Panhead’ engine, which had been introduced the previous year in 1948 and represented a major innovation for Harley Davidson.
2. The 1947 Harley-Davidson Servi-Car
Designed for use by auto repair shops, the 1947 Harley-Davidson Servi-Car was a unique motorcycle that could be used for towing and servicing vehicles. This model gained fame for its versatility, even being adopted by the Milwaukee Police Department for parking enforcement duties.
3. Harley Davidson XA Motorcycle
During World War II, Harley Davidson developed the XA motorcycle, specifically designed for military use. The XA featured a shaft-driven rear axle and a unique design suited for the rigors of military service. Harley’s military motorcycle history did not end with WWII - the Harley-Davidson MT500, a 500cc Rotax-powered bike built for British and Canadian forces in the 1980s, continued that tradition decades later.
4. 1942 Harley Davidson WLA
The Harley Davidson WLA was widely used during the Second World War. Known for its ruggedness and reliability, it became a staple of the U.S. military, with many units seeing action on the front lines.

5. 1948 Harley Davidson FL
The 1948 Harley Davidson FL brought numerous updates to the design and engine. This year marked the opening of a new engine production facility in Wisconsin, further solidifying Harley Davidson’s commitment to quality and innovation.
Sources
- Rider Magazine - 1949-1957 Harley-Davidson Hydra-Glide Retrospective - detailed history of the Hydra-Glide’s hydraulic fork innovation
- HowStuffWorks - 1947 Harley-Davidson Servi-Car - Servi-Car history, police use, and technical specifications
- Silodrome - The Harley-Davidson XA - WWII flat-twin military motorcycle history and specifications
- Harley-Davidson - During World War II - official WLA and wartime production history
- Lowbrow Customs - Motorcycles Built for War: 1942 Harley-Davidson WLA - WLA Flathead Liberator production details
- National Motorcycle Museum - 1948 Harley-Davidson FL - Panhead engine introduction and specifications
If you want the bigger Harley picture, our Harley-Davidson history guide walks every engine, model, and era from the founding to current production.
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