BlockTalk Find Your Set

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.

Christmas Train

Checking

40034 Christmas Train

82 pieces in 31 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

Plates 25 pieces

  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 2 x 4 Green Part 3020 Element 302028 ×2
  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×8
  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×2
  • Plate 2 x 6 Red Part 3795 Element 379521 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×6

Plates Round Curved and Dishes 11 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Green Part 4032a Element 403228 ×2
  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 1 spare in the box ×3
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×1

Plates Special 11 pieces

  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×1
  • Plate Special 2 x 2 with Towball Black Part 3729 Element 4124111 or 4107856 ×1
  • Plate Special 2 x 2 with Towball Socket, Short, Flattened with Holes and Axle Hole in Center Black Part 63082 Element 6273226 or 4529064 ×1
  • Plate Special 2 x 2 with Wheel Holders Black Part 4600 Element 460026 ×5
  • Bracket 1 x 2 - 1 x 4 [Square Corners] Red Part 2436 Element 4282742 or 243621 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) White Part 3794b ×2

Wheels and Tyres 10 pieces

  • Wheel 11 x 6 mm with Five Spokes and Silver Print Black Part 50944pr0001 Element 6022424 or 4248538 ×10

Panels 8 pieces

  • Panel 1 x 2 x 1 [Square Corners] Green Part 4865a Element 4522673 ×4
  • Panel 1 x 1 x 1 Corner Red Part 6231 Element 4190219 or 623121 ×4

Transportation - Land 5 pieces

  • Wheel Arch, Mudguard 2 x 4 Studded with Hole Red Part 60212 Element 4600176 or 4518231 ×5

Tiles Special 3 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Pearl Gold Part 2412b Element 4490599 ×3

Bricks Curved 2 pieces

  • Brick Curved 2 x 2, Two Top Studs Black Part 30165 Element 4200023 or 4113231 ×1
  • Brick Curved 2 x 2, Two Top Studs Red Part 30165 Element 4521852 or 4142112 ×1

Bricks Special 2 pieces

  • Brick Special 1 x 2 with Studs on 2 Sides Red Part 52107 Element 4569056 ×2

Windows and Doors 2 pieces

  • Window 1 x 2 x 2 Plane, Solid Studs Red Part 2377 Element 4140522 ×2

Bricks Round and Cones 1 piece

  • Cone 1 x 1 [Top Groove] Green Part 59900 Element 4529239 ×1

Bricks Sloped 1 piece

  • Brick Sloped 45° 2 x 4 Red Part 3037 Element 303721 ×1

Tiles 1 piece

  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy