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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.

Bus

Checking

3662 Bus

38 pieces in 27 part and color combinations.

LEGO counts 32 pieces. This inventory comes from a separate parts catalog and lists 38; 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

Belville, Scala and Fabuland 11 pieces

  • Fabuland, Vehicle Base, Car Chassis 14 x 6.5 with Tow-Hook and Light-Gray Wheels Black Part 3888ac01 ×1
  • Fabuland, Window 2 x 4 x 5 with Square Top Black Part 4608 ×1
  • Fabuland, Bus Panel with Door and Window Openings Red Part 2047 ×2
  • Fabuland, Chair Red Part 4222 Element 4141372 ×2
  • Fabuland, Bench Seat White Part 2041 ×1
  • Fabuland, Window Shutter Yellow Part upn0296 ×4

Bars, Ladders and Fences 9 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×2
  • Fabuland Lamp Post Light Gray Part 4781 Element 4141391 ×1
  • Fabuland Fence 1 x 6 x 2 Rounded Red Part 2040 ×4
  • Fence Lattice 1 x 4 x 2 Red Part 3185 Element 318521 ×1
  • Stairs 6 x 6 x 9 1/3 Curved Enclosed Yellow Part 2046 ×1

Bricks 6 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×1
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
  • Brick 1 x 4 Red Part 3010 Element 301021 ×1
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×1

Bricks Curved 3 pieces

  • Brick Arch 1 x 6 Red Part 3455 Element 4521570 or 345521 ×1
  • Brick Curved 1 x 4 x 2 Fabuland Bell Shape Red Part fabupn0038 ×1
  • Brick Curved 1 x 4 x 2 Fabuland Bell Shape with Headlights Red Part fabupn0039 ×1

Flags, Banners and Signs 3 pieces

  • Road Sign Round on Pole [Fabuland] Light Gray Part 2038 ×1
  • Flag 4 x 1 Wavy [First Wave Left] Yellow Part 4495a ×2

Plates 3 pieces

  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 4 x 4 Red Part 3031 Element 4243814 or 303121 ×1
  • Plate 6 x 14 Red Part 3456 Element 4179193 or 345621 ×1

Non-Buildable Figures (Duplo, Fabuland, etc) 2 pieces

  • Fabuland Figure Monkey White Part fabfig0016c02pr0001 ×1
  • Fabuland Figure Hanna Hippo with Necklace Print Yellow Part fabfig0012c01pr0002 ×1

Stickers 1 piece

  • Sticker Sheet for Set 3662-1 [No Color/Any Color] Part stickerupn0093 ×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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