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.

Robots - ANA Promotion

Checking

7221-2 Robots - ANA Promotion

23 pieces in 13 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

Blue 7 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×2
  • Brick Sloped 33° 3 x 1 Blue Part 4286 Element 428623 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Blue Part 3176 Element 317673 or 317623 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Blue Part 2412b Element 241223 ×1

Light Gray 6 pieces

  • Brick Special 1 x 1 with Headlight Light Gray Part 4070 Element 407002 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Gray Part 30386 Element 4143133 ×2
  • Hinge Brick 1 x 2 Locking with 2 Fingers Horizontal End, 9 Teeth Light Gray Part 30540 Element 4143750 ×2

Black 3 pieces

  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1

Dark Gray 2 pieces

  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Dark Gray Part 73983 Element 4143378 or 4111851 ×2

Trans-Neon Orange 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×2

White 2 pieces

  • Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×2

Medium Blue 1 piece

  • Brick Curved 2 x 2 x 2/3 Two Studs and Lip End Medium Blue Part 41855 Element 4163719 ×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.