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.

Wheels and Bearings

Checking

5124 Wheels and Bearings

28 pieces in 7 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

Black 14 pieces

  • Plate Special 2 x 2 with Wheels Holder Wide Black Part 6157 Element 615726 ×2
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×8
  • Tyre 21 x 8 Offset Tread Medium Black Part 4084 ×4

Light Gray 6 pieces

  • Plate Special 2 x 2 with Wheel Holders Light Gray Part 4600 Element 460002 ×2
  • Wheel 8 x 6 Light Gray Part 4624 Element 462402 ×4

White 4 pieces

  • Wheel 8 x 6 White Part 4624 Element 462401 ×4

Yellow 4 pieces

  • Wheel 8 x 6 Yellow Part 4624 Element 6133542 or 462424 ×4

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.