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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.

Guard with Incubator

Checking

122509 Guard with Incubator

24 pieces in 20 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 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.

Show

Piece checklist

White 6 pieces

  • Bar Holder with Hole and Bar Handle White Part 23443 Element 6322489 or 6290268 ×2
  • Brick Round 4 x 4 with Recessed Center White Part 68325 Element 6564916 or 6410688 ×1
  • Food Egg with 1.5mm Hole [Plain] White Part 24946 Element 6550158 or 6143595 ×1
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) White Part 18674 Element 6615555 or 6093053 ×1

Light Bluish Gray 5 pieces

  • Brick Round 1 x 1 Open Stud Light Bluish Gray Part 3062b Element 4211412 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×1

Black 3 pieces

  • Arm Mechanical Straight (Droid) [2 Clips at 90°] Black Part 59230 Element 4505757 ×2
  • Turntable 2 x 2 Female Black Part 27448 Element 6536568 or 6310981 ×1

Dark Bluish Gray 2 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 with Buttons And Red Screens Print Dark Bluish Gray Part 85984pr0006 Element 6152814 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Dark Bluish Gray Part 4590 Element 6302647 or 6086709 ×1

Red 2 pieces

  • Bar 2L with Stop in Center Red Part 78258 Element 6399645 ×2

Yellow 2 pieces

  • Plate Special 1 x 2 Rounded with 2 Open Studs Yellow Part 35480 Element 6248971 ×1
  • Tile 1 x 2 with Black Diagonal Stripes, Small Yellow Corner Triangles Print Yellow Part 3069bpr0305 Element 6329649 ×1

Bright Light Blue 1 piece

  • Equipment Medical Syringe with 2 Holes Bright Light Blue Part 53020 Element 6361949 or 6263455 ×1

Pearl Gold 1 piece

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] Pearl Gold Part 3484 Element 6453281 ×1

Tan 1 piece

  • Food Egg with 1.5mm Hole [Plain] Tan Part 24946 Element 6264077 ×1

Trans-Orange 1 piece

  • Brick 1 x 1 with Mosquito Print Trans-Orange Part 3005pr0024 Element 6532485 or 6308322 ×1

Minifigures 1 figure

  • Guard, Black Legs, Dark Blue Cap 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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