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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Max Mouse's Carousel

Checking

3663 Max Mouse's Carousel

26 pieces in 23 part and color combinations.

LEGO counts 23 pieces. This inventory comes from a separate parts catalog and lists 26; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Show

Piece checklist

Yellow 9 pieces

  • Bar 6.6L with Stop Ring [Umbrella Stand] Yellow Part 4095 Element 409574 or 409524 ×1
  • Barrel Half Large Yellow Part 4424 Element 4112508 ×1
  • Boat, Mast Section Base 4 x 4 x 9 Yellow Part 4844 ×1
  • Fabuland Figure, Lucy Lamb (White Eyes) Yellow Part fabfig0014c03pr0002 ×1
  • Fabuland Merry-Go-Round Turntable Base 6 x 6 Yellow Part 4842 ×1
  • Fabuland, Equipment Umbrella Top with No Bottom Flaps, 6 x 6 [No Top Stud] Yellow Part 4094a ×1
  • Fabuland, Plate Round 13 2/3 Stud Diameter [Type 2 Base] Yellow Part 4750 Element 475024 ×1
  • Plant, Flower 2 x 2 - Round [Open Stud] Yellow Part 4728 Element 472824 ×1
  • Plate 4 x 4 Yellow Part 3031 Element 4243817 or 303124 ×1

Red 6 pieces

  • Fabuland Figure Mouse 2 Red Part fabfig0017c01pr0002 ×1
  • Fabuland, Bench Seat Red Part 2041 ×1
  • Fabuland, Chair Red Part 4222 Element 4141372 ×1
  • Fabuland, Merry-Go-Round Type 2 Roof Red Part 4841 ×1
  • Plant, Flower 2 x 2 - Round [Open Stud] Red Part 4728 Element 472821 ×1
  • Plate 4 x 4 Red Part 3031 Element 4243814 or 303121 ×1

Blue 4 pieces

  • Box 4 x 4 x 2 Bottom with Semicircle Cut-out Ends Blue Part 4461 Element 4141388 or 446123 ×1
  • Brick Round 2 x 2 with Axle Hole Blue Part 3941 Element 614373 or 614323 ×1
  • Fabuland, Scooter with Grey Wheels and Black Handlebars Blue Part fabupn0041 ×1
  • Plate 4 x 4 Blue Part 3031 Element 4243815 or 303123 ×1

Green 3 pieces

  • Baseplate 16 x 24 Green Part 3334 Element 4113262 ×1
  • Plant, Flower 2 x 2 Leaves - Angular Green Part 4727 Element 472728 ×2

White 3 pieces

  • Fabuland Fence 1 x 6 x 2 Rounded White Part 2040 ×3

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 3663-1 [No Color/Any Color] Part stickerupn0094 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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