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.

Routemaster Bus

Checking

3300006 Routemaster Bus

117 pieces in 34 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

Red 67 pieces

  • Bracket 1 x 2 - 2 x 4 Red Part 93274 Element 6118830 or 4616800 ×1
  • Brick 1 x 1 Red Part 3005 Element 300521 ×17
  • Brick 1 x 12 Red Part 6112 Element 611221 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×3
  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Brick 1 x 8 Red Part 3008 Element 300821 ×2
  • Brick Arch 1 x 4 Red Part 3659 Element 365921 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×9
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×2
  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Red Part 45677 Element 4567721 or 4193074 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×5
  • Plate 1 x 3 Red Part 3623 Element 362321 ×1
  • Plate 1 x 4 Red Part 3710 Element 371021 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×2
  • Plate 2 x 4 Red Part 3020 Element 302021 ×3
  • Plate 4 x 12 Red Part 3029 Element 4514717 or 302921 ×1
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 1 spare in the box ×3
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 1 spare in the box ×1
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×2

Trans-Clear 28 pieces

  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×17
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box ×9
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×2

Black 16 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Black Part 61409 Element 4541191 ×2
  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Black Part 64644 Element 4538456 1 spare in the box ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×1
  • Plate Special 2 x 2 with Wheel Holders Black Part 4600 Element 460026 ×2
  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 1 spare in the box ×4
  • Wheel 11 x 6 mm with Five Spokes and Silver Print Black Part 50944pr0001 Element 6022424 or 4248538 1 spare in the box ×4

Tan 2 pieces

  • Plate 4 x 6 Tan Part 3032 Element 4114001 ×2

Trans-Red 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2

Dark Bluish Gray 1 piece

  • Plate 2 x 12 Dark Bluish Gray Part 2445 Element 4211067 ×1

Yellow 1 piece

  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×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.