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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.

Air Boat (Kabaya Promotional)

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1423 Air Boat (Kabaya Promotional)

19 pieces in 17 part and color combinations, plus 1 minifigure.

The official piece count includes the 5 parts inside the set's minifigures, which this inventory lists separately. 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.

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Piece checklist

Black 6 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick Wedged, Sloped Inverted 6 x 4 with 2 Stud Connections Black Part 4856a Element 4585334 or 4226506 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Propeller 3 Blade Small Black Part 2421 Element 6170693 or 4289255 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×1

Dark Gray 4 pieces

  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Gray Part 3660 Element 366027 ×1
  • Plate 1 x 3 Dark Gray Part 3623 Element 4121922 or 362327 ×2
  • Wedge Plate 3 x 4 without Stud Notches Dark Gray Part 4859 Element 4181035 ×1

Green 2 pieces

  • Brick Sloped 18° 4 x 2 Green Part 30363 Element 6522314 or 4270174 ×1
  • Tile 1 x 4 with Groove Green Part 2431 Element 243128 ×1

Light Gray 2 pieces

  • Plate Special 2 x 2 with Wheel Holder Light Gray Part 4488 Element 448802 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Light Gray Part 3829c01 Element 9556 ×1

Yellow 2 pieces

  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×1
  • Lever Small Base with Black Lever Yellow Part 298c02 Element 74156 1 spare in the box ×1

Red 1 piece

  • Plate 2 x 4 Red Part 3020 Element 302021 ×1

Trans-Green 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1

Trans-Red 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1

Minifigures 1 figure

  • Boat Driver Minifigure, checked as a whole figure ×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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