đź’ˇ If the .rar file is a digital download from a 3D modeling or MOC (My Own Creation) site, it likely contains a 3D model or instruction file for that specific LEGO set or part. You can open it using the WinRAR Utility or 7-Zip .
The "piece" you are looking for associated with likely refers to a LEGO sticker sheet . In the LEGO inventory system, number 54396 corresponds to the sticker sheet for Set 8667: Action Wheelie Go to product viewer dialog for this item. , which was released in 2006. 54396.rar
If you are looking for this specific part, it is officially cataloged on BrickLink as . LEGO Part Details Official Name: Sticker Sheet for Set 8667 - (54396/4286069) Set: Action Wheelie (8667) Theme: Racers Year Released: 2006 🛠️ Other Possibilities for "54396" 💡 If the