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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.

Z-Blob the Robot

Checking

552403 Z-Blob the Robot

60 pieces in 24 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

Plates Special 14 pieces

  • Plate Special 1 x 2 with 2 End Towballs Black Part 3170 Element 6416838 ×1
  • Plate Special 1 x 2 with 5.9mm Towball Socket and Towball Dark Bluish Gray Part 14419 Element 6414554 or 6338166 ×4
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×4
  • Bracket 1 x 2 - 1 x 2 White Part 99781 Element 6552141 or 6548275 ×4
  • Bracket 1 x 2 - 2 x 4 White Part 93274 Element 6552163 or 6158058 ×1

Tiles Round and Curved 11 pieces

  • Tile Round 1 x 1 Trans-Bright Green Part 98138 Element 6514198 or 6274748 ×10
  • Tile Round 2 x 2 with Bottom Stud Holder White Part 14769 Element 6601846 or 6044691 ×1

Plates Round Curved and Dishes 8 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Plate Special 1 x 2 Rounded with 2 Open Studs White Part 35480 Element 6552167 or 6550175 ×7

Tiles Special 6 pieces

  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Black Part 99563 Element 6156991 ×3
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] White Part 99563 Element 6601943 or 6210076 ×3

Plates 5 pieces

  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×3

Bricks Curved 4 pieces

  • Brick Curved Inverted 2 x 1 Black Part 24201 Element 6147050 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×1

Bricks Sloped 4 pieces

  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube White Part 3678b Element 6552126 or 4234525 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Round Hollow Bottom Pin, Bar-sized Stud Holes] White Part 76959 Element 6552189 or 6366391 ×2

Bricks Round and Cones 2 pieces

  • Brick Round 2 x 2 x 1 2/3 Dome Top, Hollow Stud with Black Eyes Print Trans-Bright Green Part 30151bpr0001 Element 6434203 ×1
  • Brick Round 3 x 4 x 2/3 Triple Curved with 2 Sunk Studs White Part 93604 Element 6552140 or 6018101 ×1

Projectiles / Launchers 2 pieces

  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 69755 Element 6360675 ×1
  • Launcher, Plate Special 1 x 2 with Mini Blaster Square Light Bluish Gray Part 69754 Element 6360382 ×1

Technic Bricks 2 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] White Part 3700 Element 6619284 or 370001 ×2

Technic Pins 2 pieces

  • Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole Black Part 66906 Element 6344752 ×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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