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The Workshop Sheet 10 of 19

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Triceratops

Checking

122006 Triceratops

65 pieces in 30 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

Bricks Curved 14 pieces

  • Brick Curved Inverted 2 x 1 Dark Green Part 24201 Element 6170761 ×4
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Green Part 6091 Element 6374489 or 6100223 ×2
  • Brick Curved 6 x 1 Green Part 42022 Element 4160395 ×2
  • Brick Curved 4 x 1 Double, No Studs Tan Part 93273 Element 4666611 ×2
  • Brick Curved Inverted 2 x 1 Tan Part 24201 Element 6251252 ×4

Plates 13 pieces

  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×1
  • Plate 2 x 4 Green Part 3020 Element 302028 ×1
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 ×4
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×6
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×1

Plates Round Curved and Dishes 8 pieces

  • Plate Round 1 x 1 with Open Stud Dark Bluish Gray Part 85861 Element 6231765 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×4
  • Plate Round Corner 3 x 3 Green Part 30357 Element 6062166 or 4541187 ×1

Bricks Sloped 6 pieces

  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and No Stud Lime Part 28192 Element 6258413 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Tan Part 54200 Element 4516055 or 4278069 ×2
  • Brick Sloped 45° 2 x 2 Double Convex Tan Part 3045 Element 6222431 or 4542407 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 ×1

Technic Bricks 6 pieces

  • Technic Brick 1 x 1 with Pin Hole Green Part 6541 Element 4542190 or 4522678 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Tan Part 3700 Element 4205107 or 370005 ×4

Technic Pins 5 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×4
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×1

Plates Special 4 pieces

  • Plate Special 1 x 2 with Pin Hole on Top Dark Bluish Gray Part 11458 Element 6019987 ×2
  • Bracket 1 x 2 - 2 x 2 Green Part 44728 Element 6117971 or 6048853 ×1
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×1

Bricks 3 pieces

  • Brick 1 x 1 Lime Part 3005 Element 4220634 or 4122446 ×2
  • Brick 2 x 2 Tan Part 3003 Element 4114306 or 300305 ×1

Animal / Creature Body Parts 2 pieces

  • Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - Long White Part 13564 Element 6269074 or 6032360 ×2

Bricks Round and Cones 2 pieces

  • Cone 1 x 1 [Top Groove] Green Part 59900 Element 4529239 ×1
  • Cone 2 x 2 x 2, Open Stud Green Part 3942c Element 6189162 or 6022162 ×1

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 Quarter Green Part 25269 Element 6150607 ×2

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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