LEGO 40912 Sea Serpent Instructions
Ideas • 2026
Where can I find LEGO 40912 Sea Serpent instructions?
LEGO 40912 Sea Serpent is a 241-piece LEGO Ideas set released on 7 July 2026. This page provides a step-by-step building instruction video with a runtime of 7 minutes and 11 seconds. The page also links to LEGO's official building instructions for this set.
Instruction videos
LEGO 40912 set details
Set overview
LEGO 40912 Sea Serpent is a 241-piece LEGO Ideas set released in 2026 from the Promotional range.
This page includes one step-by-step instruction video for building Sea Serpent.
Official LEGO building instructions
Open the official LEGO instruction page to select and download the available PDF manual books.
VIEW OFFICIAL LEGO MANUALS