Vespa ET4 Scooter (2001-2005)

The Vespa ET4, available in North America from 2001 to 2005, was a key model in Vespa's return to the market after an 18-year absence. Part of the ET series, it marked a significant shift towards four-stroke engines, moving away from older two-stroke designs. This series was eventually succeeded by the LX generation in 2006. During its production from 2001 to 2005, the ET4 was primarily offered in two engine configurations: the ET4 150 and the ET4 50. The ET4 150 featured a 149.6cc Piaggio LEADER engine, delivering 11.3 hp. For the North American market, models from late 2001 onwards received an updated LEADER engine, offering improved fuel efficiency. The ET4 50, with its 49.3cc Hi-PER4 engine (approx. 4 hp), was notable as Vespa's first small-displacement four-stroke scooter. Both variants shared the same frame, suspension, and styling, with the engine being the main differentiator. Q: How can I be sure these parts fit my Vespa ET4?

A: To ensure perfect compatibility, please use the year and engine size selector available on this page.

Maintenance