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.

Brickley

Checking

40019 Brickley

59 pieces in 23 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

Green 38 pieces

  • Bracket 1 x 2 - 2 x 2 Green Part 44728 Element 6117971 or 6048853 ×2
  • Brick 1 x 1 with Simple Eye Black and White Print Green Part 3005pr9996 Element 4107722 ×2
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×1
  • Brick 2 x 2 Green Part 3003 Element 300328 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Green Part 54200 Element 4546705 or 4503118 ×4
  • Brick Sloped 45° 2 x 2 Green Part 3039 Element 303928 ×12
  • Brick Special 1 x 1 with Headlight Green Part 4070 Element 4187334 or 4109676 ×2
  • Plate 1 x 2 Green Part 3023 Element 302328 ×2
  • Plate 2 x 2 Green Part 3022 Element 302228 ×2
  • Plate 2 x 3 Green Part 3021 Element 302128 ×1
  • Plate 2 x 4 Green Part 3020 Element 302028 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Green Part 3794a ×3
  • Plate Special 1 x 2 with Door Rail Green Part 32028 Element 4272665 or 4107760 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Green Part 87580 Element 6389692 or 4565321 ×2

Yellow 7 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 1 spare in the box ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Yellow Part 3660 Element 366024 ×1
  • Brick Special 1 x 1 with Headlight Yellow Part 4070 Element 407024 ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Yellow Part 3794a ×1

Dark Green 6 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Green Part 54200 Element 6618111 or 4504375 1 spare in the box ×6

Red 5 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 2 spares in the box ×5

White 2 pieces

  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×2

Trans-Red 1 piece

  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×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.