Window Round 3 x 3 x 2

73878

Windows and Doors

Appears in 33 official sets

Catalog rarity

Moderate

Used in 33 official sets — reasonably findable but not universal. Available in 13 catalog colors.

Based on official set inventories in our catalog — not market price or production volume.

Best sets to source this part

Smallest official sets that include this element — useful when you only need one piece, not the whole theme.

Window Round 3 x 3 x 2 (part 73878) is a Windows and Doors used in 33 official LEGO sets. Scan or search to authenticate loose parts and check market value. Open the parent-set list to see which themes and years used this mold — essential when a common shape appears in a rare color or print.

→ Category: Windows and Doors
→ Appears in 33 official sets
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Market value

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