The Workshop Sheet 10 of 19

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Pencil Holder

Checking

850426 Pencil Holder

153 pieces in 29 part and color combinations, plus 1 minifigure.

The official 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

Bricks 120 pieces

  • Brick 1 x 6 Blue Part 3009 Element 300923 ×4
  • Brick 2 x 2 Corner Blue Part 2357 Element 4558606 or 4533323 ×4
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×16
  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×4
  • Brick 1 x 6 Green Part 3009 Element 4111844 or 300928 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×30
  • Brick 1 x 4 Red Part 3010 Element 301021 ×5
  • Brick 1 x 6 Red Part 3009 Element 300921 ×7
  • Brick 2 x 2 Corner Red Part 2357 Element 235771 or 235721 ×2
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×7
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×25
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×5
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×6

Plates 22 pieces

  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate 2 x 10 Green Part 3832 Element 383228 ×1
  • Plate 4 x 10 Green Part 3030 Element 6398657 or 6247196 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×8
  • Plate 1 x 4 Red Part 3710 Element 371021 ×4
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×4

Bricks Sloped 2 pieces

  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Dark Bluish Gray Part 4287b ×2

Bricks Special 2 pieces

  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×2

Gear Parts 2 pieces

  • Pencil, LEGO Logo and Minifig Print [No Color/Any Color] Part upn0231 ×2

Minifig Accessories 2 pieces

  • Equipment Signal Paddle Light Bluish Gray Part 3900 Element 4211753 ×1
  • Equipment Cup / Mug [Plain] Yellow Part 3899 Element 389924 ×1

Plates Round Curved and Dishes 1 piece

  • Plate Round 1 x 1 with Solid Stud Metallic Silver Part 6141 Element 51809301 or 6546105 ×1

Technic Connectors 1 piece

  • Technic Pin Connector Round [Slotted] White Part 62462 Element 6550164 or 6173116 ×1

Tiles 1 piece

  • Tile 2 x 2 with LEGO Logo Type 2 Print White Part 3068bpr0163 Element 6236276 or 6044242 ×1

Minifigures 1 figure

  • Blue Overalls and White V-Necked Shirt, Red Hard Hat 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.