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.

Cannons and Wheels

Checking

5134 Cannons and Wheels

28 pieces in 5 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

Bricks Round and Cones 12 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×12

Wheels and Tyres 8 pieces

  • Wheel 8 x 6 Light Gray Part 4624 Element 462402 ×8

Plates Special 4 pieces

  • Plate Special 2 x 2 with Wheel Holders Black Part 4600 Element 460026 ×4

Projectiles / Launchers 4 pieces

  • Launcher Base, Weapon Cannon Base 2 x 4 Brown Part 2527 Element 4161404 or 252725 ×2
  • Launcher, Weapon Cannon Shooting Dark Gray Part 84943 Element 4161402 or 74296 ×2

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.