LEGO 42666 Cat Birthday Party Instructions
Friends • 2025
Where can I find LEGO 42666 Cat Birthday Party instructions?
LEGO 42666 Cat Birthday Party is a 321-piece LEGO Friends set released on 1 June 2025. This page provides 3 step-by-step building instruction videos for the set. The page also links to LEGO's official building instructions for this set.
Instruction videos
LEGO 42666 set details
Set overview
LEGO 42666 Cat Birthday Party is a 321-piece LEGO Friends set released in 2025 from the Pets range with 2 minifigures.
What does this instruction guide include?
This page groups 3 instruction videos for this set, including Book 1 and Book 2.
Notable features
- a crane function
- a brick-built animal model
Official LEGO building instructions
Open the official LEGO instruction page to select and download the available PDF manual books.
VIEW OFFICIAL LEGO MANUALSContinue building this set
Friends - Cat Birthday Party - Pets (Book 1)
Friends - Cat Birthday Party - Pets (Book 2)