If you need v1.33 specifically for a certain mod, the official Steam version allows you to "roll back" to older versions (like v1.33) through the Properties > Betas menu.

Improved rain drop physics on the windscreen for better immersion during storms.

For those with non-Steam legacy versions, SCS Software provides an online updater to reach the latest compatible version safely. What's New in ETS2 1.33? (Euro Truck Simulator 2)

While version 1.33 of Euro Truck Simulator 2 (ETS2) was a major update released in late 2018, seeking "torrent letöltése" (torrent downloads) carries significant security and performance risks. This report covers the features of v1.33, technical requirements, and the safest ways to access the game. 1. Key Features of ETS2 Update 1.33