I designed this model as a replacement for brake fluid reservoir on our kids Polaris 200 EFI side-by-side. This part gets frequently broken and you cannot order an OEM spare - Polaris sells only whole kit with master cylinder that costs over 300 Eur.
Reuse the original lid.
Use heat gun to slide the piece onto master cylinder. Then fasten with original screw-belt.
Important: Print with PETG (material resistant to brake fluid). Ideally with transparent variety so you can see the fluid level
The author marked this model as their own original creation.