Free tool

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.

BrickMaster

Checking

20001 BrickMaster

103 pieces in 36 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 28 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Black Part 2436 Element 4282746 or 243626 ×1
  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×3
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×6
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×5
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×1
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×6
  • Plate Special 1 x 1 with Tooth Pearl Light Gray Part 49668 Element 4293006 or 4263416 ×6

Hinges, Arms and Turntables 19 pieces

  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×2
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Blue Part 44302a Element 4655150 or 4518447 ×4
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Dark Bluish Gray Part 44567a Element 4210892 ×7
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×4
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×1

Plates Round Curved and Dishes 16 pieces

  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 1 spare in the box ×8
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Blue Part 2654 Element 4278276 or 4208686 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2

Bricks Sloped 11 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 ×8
  • Brick Sloped 45° 2 x 1 Triple Smooth Black Part 3048b ×1
  • Brick Sloped 45° 2 x 2 Double Convex Black Part 3045 Element 4189064 or 304526 ×2

Plates 6 pieces

  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×4
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×1

Bricks Curved 4 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Black Part 6091 Element 6383142 or 6184784 ×4

Tiles 4 pieces

  • Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×4

Bricks Round and Cones 3 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×2
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×1

Bricks 2 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2

Bricks Wedged 2 pieces

  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Black Part 41748 Element 4160130 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Black Part 41747 Element 4160108 ×1

Minifig Lower Body 2 pieces

  • Hips and Blue Legs Black Part 970c28 Element 4600197 or 73418 ×2

Plates Wedged 2 pieces

  • Wedge Plate 4 x 2 Left Dark Bluish Gray Part 41770 Element 4210788 ×1
  • Wedge Plate 4 x 2 Right Dark Bluish Gray Part 41769 Element 4210782 ×1

Tiles Special 2 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Black Part 2555 Element 255526 ×2

Bricks Special 1 piece

  • Brick Special 1 x 1 with Studs on 2 Sides Black Part 47905 Element 4214559 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 4 x 4 Roll Cage Black Part 47758 Element 6267167 or 6170704 ×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.