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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.

Alien DJ BeatBox

Checking

43104 Alien DJ BeatBox

56 pieces in 29 part and color combinations, plus 1 minifigure.

LEGO counts 73 pieces. This inventory comes from a separate parts catalog and lists 59, including the 3 parts inside the minifigures; 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.

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Piece checklist

Dark Blue 14 pieces

  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 1 spare in the box ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Blue Part 15573 Element 6554197 or 6092588 ×5
  • Tile 2 x 2 Curved, Macaroni Dark Blue Part 27925 Element 6199898 ×4
  • Tile Round 2 x 2 with Record with Sound Equalizer Print Dark Blue Part 14769pr1177 Element 6333995 ×1

Light Aqua 9 pieces

  • Plate 1 x 2 Light Aqua Part 3023 Element 6146701 or 6015054 ×3
  • Tile 2 x 2 Curved, Macaroni Light Aqua Part 27925 Element 6199894 ×2
  • Tile Round 1 x 1 Quarter Light Aqua Part 25269 Element 6199886 1 spare in the box ×4

Light Bluish Gray 5 pieces

  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Light Bluish Gray Part 29120 Element 6225139 ×2
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Light Bluish Gray Part 29119 Element 6225142 ×2
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×1

Medium Azure 4 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Medium Azure Part 4032a Element 6109752 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Medium Azure Part 18674 Element 6136419 ×2

White 4 pieces

  • Hinge Plate 4 x 6 with Two 1 x 6 Studs and Recessed 2 x 6 Middle White Part 65133 Element 6317532 ×2
  • Turntable Snap White Part 65146 Element 6317514 ×2

Dark Turquoise 3 pieces

  • Dish 4 x 4 with 4 Studs Dark Turquoise Part 65138 Element 6317535 ×2
  • Plate Round Corners 8 x 8 Dark Turquoise Part 65140 Element 6317543 ×1

Opal Trans-Light Blue 3 pieces

  • Tile Round 1 x 1 Opal Trans-Light Blue Part 98138 Element 6514199 or 6299900 1 spare in the box ×3

Black 2 pieces

  • Hinge Bracket 4 x 5 x 5 Locking with 2 Fingers, Two on Each Side, 7 Teeth Black Part 65132 Element 6317524 ×1
  • Tile 2 x 2 with Light Speed Print Black Part 3068bpr0463 Element 6325346 ×1

Trans-Green 2 pieces

  • Tile 1 x 1 with Groove Trans-Green Part 3070b Element 6581818 or 6254249 1 spare in the box ×2

Trans-Light Blue 2 pieces

  • Dish 3 x 3 Inverted [Radar] Trans-Light Blue Part 43898 Element 6507918 or 6244733 ×2

Flat Silver 1 piece

  • Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 ×1

Lime 1 piece

  • Pod, Square Rounded Corners, Back, 8 x 8 x 2, Corner Studs, and Recessed Slots Lime Part 65129 Element 6317519 ×1

Orange 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Trans-Bright Green 1 piece

  • Tile 1 x 2 with Groove Trans-Bright Green Part 3069b Element 6502368 or 6251298 ×1

Trans-Clear 1 piece

  • Pod, Square with Rounded Corners, Front, 8 x 8 x 2 Trans-Clear Part 65128 Element 6317507 ×1

Trans-Yellow 1 piece

  • Tile 1 x 2 with Groove Trans-Yellow Part 3069b Element 6514221 or 6251291 ×1

Yellow 1 piece

  • Tile 2 x 2 with Glow Stick Dance Print Yellow Part 3068bpr0462 Element 6325372 ×1

Yellowish Green 1 piece

  • Strap with End Rings Yellowish Green Part 65130 Element 6317516 ×1

Minifigures 1 figure

  • Alien DJ 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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