LEGO 40912 Sea Serpent Building Instructions

Ideas • 2026

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LEGO 40912 set details

Set number40912
ThemeIdeas
SubthemePromotional
Year2026
Pieces241

LEGO 40912 Sea Serpent is a 2026 LEGO Ideas set from the Promotional range focused on the LEGO model. The details table below lists 241 pieces, along with the set number, theme and year.

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Watch the step-by-step LEGO instructions video for LEGO 40912 Sea Serpent. You can pause between steps, follow the build order, and use the related instruction links below to find more sets from the same theme.

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