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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.

Compax

Checking

41574 Compax

66 pieces in 34 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.

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Piece checklist

Plates Special 14 pieces

  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×1
  • Plate Special 1 x 2, Top Clip [Split] Black Part 92280 Element 4598528 ×2
  • Plate Special 1 x 4 with Wheels Holder Black Part 2926 Element 6338416 or 292626 ×1
  • Plate Special 1 x 2 with 5.9mm Towball Socket and Towball Dark Bluish Gray Part 14419 Element 6414554 or 6338166 ×2
  • Plate Special 1 x 2 with Door Rail Dark Bluish Gray Part 32028 Element 4543086 or 4541289 ×2
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×2
  • Plate Special 1 x 1 with Vertical Tooth White Part 15070 Element 6615559 or 6046905 ×2
  • Plate Special 1 x 2 with Three Teeth [Tri-Tooth] White Part 15208 Element 6046381 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Yellow Part 15573 Element 6092583 ×1

Plates 9 pieces

  • Plate 1 x 4 Green Part 3710 Element 371028 ×1
  • Plate 2 x 4 Green Part 3020 Element 302028 ×3
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 1 x 2 Trans-Yellow Part 3023 Element 6514002 or 6240211 ×3
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1

Bricks Special 8 pieces

  • Brick Special 1 x 1 with Headlight Green Part 4070 Element 4187334 or 4109676 ×4
  • Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×4

Bricks Curved 4 pieces

  • Brick Arch 1 x 3 x 2 Curved Top Green Part 6005 Element 4644085 or 4583768 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Green Part 6091 Element 6374489 or 6100223 ×2

Bricks Sloped 4 pieces

  • Brick Sloped Inverted 45° 6 x 1 Double with 1 x 4 Recessed Dark Bluish Gray Part 52501 Element 4294180 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Yellow Part 54200 Element 6245272 or 4260942 1 spare in the box ×2

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Flat Silver Part 6141 Element 4633691 1 spare in the box ×4

Technic Pins 4 pieces

  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×2
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×2

Tiles Special 4 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Dark Green Part 2412b Element 6146505 or 4248263 ×4

Wheels and Tyres 4 pieces

  • Tyre 21 x 12 with Offset Tread Small Wide and Center Band Black Part 87697 Element 6575727 or 4568644 ×2
  • Wheel 11 x 12 with Hole Notched for Wheels Holder Pin Light Bluish Gray Part 6014b Element 4211764 ×2

Minifig Accessories 3 pieces

  • Equipment Shovel [Rounded Handle End] Dark Bluish Gray Part 3837 Element 4211006 ×2
  • Equipment Goblet / Glass Trans-Clear Part 2343 Element 6166107 or 3000240 ×1

Bricks Round and Cones 2 pieces

  • Brick Round 1 x 1 Open Stud Trans-Yellow Part 3062b Element 6514236 or 6238674 ×2

Technic Connectors 2 pieces

  • Technic Pin Connector Round [Slotted] Yellow Part 62462 Element 6173122 or 4526983 ×2

Bars, Ladders and Fences 1 piece

  • Bar 5L with Handle (Friction Ram) Light Bluish Gray Part 87618 Element 4565433 ×1

Flags, Banners and Signs 1 piece

  • Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] Light Bluish Gray Part 11055 Element 6011817 or 4271362 ×1

Minifig Heads 1 piece

  • Minifig Head Mixel Eye, Large Black Eye with Pupil Print [Hollow Stud] White Part 3626cpr1001 Element 6060802 ×1

Minifig Headwear 1 piece

  • Knitted Cap Black Part 41334 Element 4157108 ×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.

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