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.

Town Master

Checking

21204 Town Master

252 pieces in 47 part and color combinations, plus 1 minifigure.

The piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

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 45 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×6
  • Brick 1 x 2 Black Part 3004 Element 300426 ×8
  • Brick 1 x 4 Black Part 3010 Element 301026 ×4
  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick Curved 1 x 3 x 2 Black Part 33243 Element 6616748 or 4582251 ×4
  • Brick Sloped 18° 4 x 1 Black Part 60477 Element 4515362 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×8
  • Brick Sloped 65° 2 x 1 x 2 Black Part 60481 Element 4515373 ×2
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×6
  • Door 1 x 4 x 6 with 4 Panes and Stud Handle Black Part 60623 Element 4521208 ×1

Red 44 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×6
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 1 x 4 Red Part 3010 Element 301021 ×4
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick Sloped 18° 4 x 1 Red Part 60477 Element 4515360 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×8
  • Brick Sloped 65° 2 x 1 x 2 Red Part 60481 Element 4515371 ×4
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×8

Tan 36 pieces

  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×8
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×8
  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×4
  • Brick 1 x 6 Tan Part 3009 Element 4112982 or 300905 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Tan Part 3040b Element 4121972 or 4113989 ×6
  • Brick Sloped Inverted 45° 2 x 1 Tan Part 3665 Element 4159196 or 366505 ×6

Olive Green 31 pieces

  • Brick 1 x 1 Olive Green Part 3005 Element 6058242 or 6031135 ×8
  • Brick 1 x 2 Olive Green Part 3004 Element 6031131 or 6024722 ×8
  • Brick 1 x 4 Olive Green Part 3010 Element 6062697 or 6031133 ×4
  • Brick 1 x 6 Olive Green Part 3009 Element 6031134 or 6020143 ×3
  • Brick Sloped 45° 2 x 1 with Bottom Pin Olive Green Part 3040b Element 6064670 ×4
  • Brick Sloped 65° 2 x 1 x 2 Olive Green Part 60481 Element 6312356 or 6024692 ×4

Medium Blue 30 pieces

  • Brick 1 x 1 Medium Blue Part 3005 Element 4179830 or 4165452 ×8
  • Brick 1 x 2 Medium Blue Part 3004 Element 4629786 or 4179833 ×8
  • Brick 1 x 4 Medium Blue Part 3010 Element 4165458 or 4163696 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Medium Blue Part 3040b Element 4626883 or 4128582 ×4
  • Brick Sloped Inverted 45° 2 x 1 Medium Blue Part 3665 Element 4598015 or 4179831 ×4

Reddish Brown 18 pieces

  • Brick Round 1 x 1 Open Stud Reddish Brown Part 3062b Element 4211183 ×6
  • Brick Special 1 x 2 Palisade [aka Log] Reddish Brown Part 30136 Element 4211180 ×12

Light Bluish Gray 17 pieces

  • Brick Special 1 x 2 with Masonry Brick Profile Light Bluish Gray Part 98283 Element 6000066 ×12
  • Plate Special 6 x 12, Studs on 3 Edges with Hopscotch Grid and Manhole Cover Print Light Bluish Gray Part 6178pr0001 Element 6090049 ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×2
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×2

Yellow 12 pieces

  • Brick Special 1 x 2 with Grille Yellow Part 2877 Element 287724 ×12

Sand Blue 10 pieces

  • Brick Special 1 x 2 with Groove Sand Blue Part 4216 Element 4620991 ×10

White 9 pieces

  • Door Frame 1 x 4 x 6 Type 2 White Part 60596 Element 6262945 or 4541956 ×1
  • Window 1 x 2 x 2 Flat Front White Part 60592 Element 6550187 or 6382045 ×4
  • Window 1 x 2 x 3 Flat Front White Part 60593 Element 6468341 or 4536521 ×2
  • Window 1 x 4 x 3 without Shutter Tabs White Part 60594 Element 4530590 or 4520702 ×2

Minifigures 1 figure

  • Striped Vest with Yellow Striped Scarf and Black Legs Minifigure, checked as a whole figure ×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.