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.

Wind-up Motor

Checking

5223 Wind-up Motor

41 pieces in 22 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 17 pieces

  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×1
  • Technic Axle 5 Black Part 32073 Element 4114740 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×1
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×1
  • Technic Pin Connector Perpendicular Long Black Part 32557 Element 4143466 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×4
  • Technic Wedge Belt Wheel Tire Black Part 2815 Element 6028041 or 281526 ×2
  • Tyre 30.4 x 14 VR Black Part 6578 Element 4561806 or 657826 ×2

Blue 8 pieces

  • Axle Hose, Soft 12L Blue Part 32200 Element 4124279 ×2
  • Technic Axle and Pin Connector Angled #1 Blue Part 32013 Element 6332570 or 4107797 ×2
  • Technic Beam 1 x 4 Thin with Stud Connector Blue Part 2825 Element 4142061 or 3200623 ×2
  • Technic Panel Fairing # 5 Small Short, Large Hole, Side A Blue Part 32527 Element 4507353 or 4143818 ×1
  • Technic Panel Fairing # 6 Small Short, Large Hole, Side B Blue Part 32528 Element 4507352 or 4143817 ×1

Light Gray 8 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×4
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×4

Dark Gray 4 pieces

  • Pullback Motor 9 x 4 x 2 1/3 with Black Base, White Axle Holes, No Studs on Front Top Surface Dark Gray Part 32283c01 ×1
  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×1
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 1 spare in the box ×2

White 4 pieces

  • Technic Wedge Belt Wheel [aka Pulley] White Part 4185 Element 6564907 or 6330136 ×2
  • Wheel Rim 24 x 14 VR with Center Axle Hole White Part 2994 Element 4496671 or 299401 ×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.