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.

Race Car

Checking

6557640-9 Race Car

29 pieces in 18 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.

Show

Piece checklist

Wheels and Tyres 8 pieces

  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 ×4
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×4

Tiles Round and Curved 4 pieces

  • Tile Round 1 x 1 Quarter Black Part 25269 Element 6172383 ×2
  • Tile Round 1 x 1 Quarter Bright Green Part 25269 Element 6275873 ×2

Technic Bricks 3 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 ×1

Technic Pins 3 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×1
  • Technic Pin Long without Friction Ridges, with Anti-Roll Notch Tan Part 39888 Element 6321305 ×2

Tiles Special 3 pieces

  • Tile Special 1 x 3 Inverted with Center Hole Black Part 35459 Element 6272184 ×2
  • Tile Special Round 1 x 1 with Hollow Bar Dark Bluish Gray Part 20482 Element 6271752 ×1

Bricks Curved 2 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Bright Green Part 11477 Element 6460836 ×1

Plates 2 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×1
  • Plate 1 x 2 Bright Green Part 3023 Element 6343326 or 6014491 ×1

Plates Round Curved and Dishes 2 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×1
  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 ×1

Tiles 2 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 ×1
  • Tile 1 x 3 Bright Green Part 63864 Element 6318735 ×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.