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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.

Mummy Museum Mystery

Checking

75900 Mummy Museum Mystery

100 pieces in 47 part and color combinations, plus 3 minifigures.

The official piece count includes the 10 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

Light Bluish Gray 21 pieces

  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×5
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×1
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Light Bluish Gray Part 11477 Element 6028813 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×2
  • Hinge Brick 1 x 4 [Lower] Light Bluish Gray Part 3831 Element 4211461 ×1
  • Hinge Brick 1 x 4 [Upper] Light Bluish Gray Part 3830 Element 6327412 or 6011459 ×1
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Light Bluish Gray Part 30553 Element 4222047 ×2
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Light Bluish Gray Part 88072 Element 6261353 or 4611702 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2

Dark Tan 20 pieces

  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Dark Tan Part 15672 Element 6093064 ×6
  • Brick Sloped Inverted 45° 2 x 1 Dark Tan Part 3665 Element 6121959 ×8
  • Tile 1 x 2 with Groove Dark Tan Part 3069b Element 4496699 ×6

Tan 17 pieces

  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Tan Part 2454a Element 245405 ×2
  • Brick 1 x 8 Tan Part 3008 Element 4159774 or 4124002 ×2
  • Brick Arch 1 x 4 Tan Part 3659 Element 4550323 or 4542424 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Tan Part 3040b Element 4121972 or 4113989 ×4
  • Panel 1 x 4 x 5 with Arched Window Tan Part 60808 Element 6006789 ×1
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×3
  • Plate Round 2 x 2 with Rounded Bottom with Hamburger Bun Print Tan Part 2654pr0002 Element 6122533 ×1
  • Technic Brick 1 x 1 with Pin Hole Tan Part 6541 Element 4179771 or 654105 ×2
  • Tile Special Round 2 x 2 with Hole Tan Part 15535 Element 6115248 ×1

Pearl Gold 13 pieces

  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Pearl Gold Part 15571 Element 6075079 ×3
  • Chain 6L [5 Links] Pearl Gold Part 92338 Element 6323688 or 4600501 ×1
  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 1 spare in the box ×6
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Pearl Gold Part 87580 Element 6186383 or 6107193 ×2
  • Sarcophagus Lid 2 x 4 x 6 with Mummy Relief [Plain] Pearl Gold Part 30164 Element 6116543 or 4614590 ×1

Dark Bluish Gray 10 pieces

  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Bluish Gray Part 30383 Element 6265693 or 4210726 ×2
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×2
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate 4 x 10 Dark Bluish Gray Part 3030 Element 4211122 ×1
  • Plate Special 1 x 2 with Pin Hole on Top Dark Bluish Gray Part 11458 Element 6019987 ×2

Dark Red 3 pieces

  • Panel 1 x 4 x 1 with Rounded Corners [Thin Wall] Dark Red Part 15207 Element 6092665 ×1
  • Plate 1 x 4 Dark Red Part 3710 Element 4539061 or 4164219 ×1
  • Plate 4 x 6 Dark Red Part 3032 Element 6020122 or 4167304 ×1

Trans-Clear 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×3

Black 2 pieces

  • Tap 1 x 1 without Hole in Spout Black Part 4599b Element 459926 1 spare in the box ×2

Flat Silver 2 pieces

  • Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section Flat Silver Part 40379 Element 6060833 ×2

Lime 2 pieces

  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 1 spare in the box ×2

Red 2 pieces

  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×2

Trans-Dark Blue 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Dark Blue Part 30153 Element 6513973 or 6247793 ×1

Trans-Green 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Green Part 30153 Element 6513970 or 6247788 ×1

Trans-Red 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Red Part 30153 Element 6513969 or 6247785 ×1

White 1 piece

  • Tile 2 x 2 with Tan Parchment with Sarcophagus and Eye of Horus and White Paper with Red Gem and Question Mark Pattern White Part 3068bpr0267 Element 6123039 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 75900-1 [No Color/Any Color] Part 21421 Element 6116445 or 6116444 ×1

Minifigures 3 figures

  • Shaggy Rogers with Closed Mouth Minifigure, checked as a whole figure ×1
  • Scooby-Doo Minifigure, checked as a whole figure ×1
  • Mummy / Dr. Najib 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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