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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.

Serious Play / BuildToExpress Mini Kit

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9338 Serious Play / BuildToExpress Mini Kit

57 pieces in 46 part and color combinations.

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

Red 7 pieces

  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×1
  • Brick 2 x 4 Red Part 3001 Element 300121 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×2
  • Torso, Red Arms, Yellow Hands [Plain] Red Part 973c22h01 Element 4582740 or 4275872 ×1

White 7 pieces

  • Antenna 1 x 4 with Rounded Top White Part 3957a ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Hips and White Legs White Part 970c27 Element 6551364 or 4570434 ×2
  • Minifig Head Skeleton, Standard Skull Print White Part 3626bpr0895 Element 6008095 or 82359 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] White Part 3700 Element 6619284 or 370001 ×2

Yellow 7 pieces

  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×1
  • Brick 2 x 2 with Eye with White Print on Two Sides, White Circle in Pupil, Offset Yellow Part 3003pr0001 Element 4569077 ×1
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×1
  • Minifig Head Jester, Huge Grin, White Pupils, Eyebrows / Sad with Tear Print Yellow Part 3626bpr0579 Element 4589863 or 4549620 ×1
  • Minifig Head, Brown Eyebrows, Thin Grin, Black Eyes with White Pupils Print Yellow Part 3626bpr0387 Element 6045809 or 4631520 ×1

Black 6 pieces

  • Brick 1 x 3 Black Part 3622 Element 362226 ×1
  • Equipment Magnifying Glass with Thick Frame, Solid Handle, Trans-Clear Lens Pattern Black Part 10830pat0001 Element 6012466 ×1
  • Equipment Radio [Extended Handle, Compact Speaker Grille] Black Part 3962b Element 396226 ×1
  • Hair Center Parting Black Part 4530 Element 4659663 or 453026 ×1
  • Tool Hammer / Mallet Large Black Part 4522 Element 452226 ×1
  • Top Hat Black Part 3878 Element 4569092 or 4105175 ×1

Green 4 pieces

  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×2
  • Plant, Flower 2 x 2 Leaves - Angular Green Part 4727 Element 472728 ×1
  • Plate 4 x 6 Green Part 3032 Element 4116671 ×1

Blue 3 pieces

  • Brick 1 x 3 Blue Part 3622 Element 362223 ×1
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×1
  • Torso, Blue Arms, Yellow Hands [Plain] Blue Part 973c28h01 Element 4275815 or 73837 ×1

Light Bluish Gray 3 pieces

  • Helmet Castle with Neck Protector Light Bluish Gray Part 3844 Element 4211827 or 4184525 ×1
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Bluish Gray Part 4019 Element 4562487 or 4211563 ×2

Lime 3 pieces

  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×2
  • Brick 2 x 2 Lime Part 3003 Element 4220632 or 4122451 ×1

Dark Bluish Gray 2 pieces

  • Equipment Shovel [Rounded Handle End] Dark Bluish Gray Part 3837 Element 4211006 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Dark Bluish Gray Part 4349 Element 4210698 ×1

Dark Pink 2 pieces

  • Brick 1 x 2 Dark Pink Part 3004 Element 4621545 or 4245295 ×2

Medium Blue 2 pieces

  • Brick 1 x 2 Medium Blue Part 3004 Element 4629786 or 4179833 ×2

Reddish Brown 2 pieces

  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×1
  • Equipment Brush / Push Broom Reddish Brown Part 3836 Element 4211157 ×1

Tan 2 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Trans-Clear 2 pieces

  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×1
  • Equipment Cup / Mug [Plain] Trans-Clear Part 3899 Element 6514013 or 6238856 ×1

Dark Orange 1 piece

  • Hair Short, Tousled with Side Part Dark Orange Part 62810 Element 6119966 or 4529755 ×1

Orange 1 piece

  • Brick 1 x 3 Orange Part 3622 Element 4118787 ×1

Trans-Dark Blue 1 piece

  • Rock 1 x 1 Crystal 5 Point Trans-Dark Blue Part 30385 Element 6507864 or 6236962 ×1

Trans-Dark Pink 1 piece

  • Equipment Magic Wand Trans-Dark Pink Part 6124 Element 6245512 or 4499710 ×1

Trans-Red 1 piece

  • Brick 1 x 2 without Bottom Tube Trans-Red Part 3065 Element 6514263 or 6244905 ×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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