Molds 30218 and 18866 has a number of differences:

No.30218 (on the left)18866 (on the right)
1Scalloped edgeSmooth edge
2Scalloped inner edgeLocking finger on inner edge
3Round (slightly faceted) bar holeOctagonal bar hole
4Slit on both sidesSlit only on bottom side

Mold 18866 has better locking power than 30218. Used parts 30218 may even open by themselves.

Available Colors

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Click on a colored part below to see the Sets and MOCs that use part 18866 Clam [Type 2 - Locking Edge on Inner Lip] in that color. You can find an overview of all LEGO Colors here.

If a color is missing, it probably needs to be added to a Set Inventory.


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There are 2 Mold variations of part 18866 - Clam [Type 2 - Locking Edge on Inner Lip] in the database, in use between 2014 to 2019. See Molds and other related Parts.

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