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The Workshop Sheet 10 of 21

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.

Arachno Pod

Checking

4413 Arachno Pod

57 pieces in 33 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

Black 20 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×8
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Black Part 44301a Element 4183043 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×2
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 ×2
  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×2

Dark Bluish Gray 10 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×1
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×2
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×1

Red 10 pieces

  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Red Part 3747b Element 4500462 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Red Part 6019 Element 601971 or 601921 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Red Part 4081b Element 6281994 or 4632572 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Red Part 32064b ×2
  • Wedge Plate 3 x 2 Left Red Part 43723 Element 4372321 or 4180533 ×1
  • Wedge Plate 3 x 2 Right Red Part 43722 Element 4372221 or 4180504 ×1
  • Wedge Plate 4 x 4 with 2 x 2 Cutout Red Part 43719 Element 6275399 or 4561034 ×1

Orange 7 pieces

  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×1
  • Brick Curved 2 x 2 with Lip, No Studs Orange Part 30602 Element 4169355 ×1
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×1
  • Plate Round 1 x 1 with Solid Stud Orange Part 6141 Element 4157103 1 spare in the box ×2
  • Pod, Bottom Cap 9 x 9 x 1 X-Pod Orange Part 47676 Element 4255418 ×1
  • Pod, Top Cap 9 x 9 x 1 1/3 X-Pod Orange Part 47675 Element 4255424 ×1

Light Bluish Gray 5 pieces

  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 ×2
  • Technic Pin Long without Friction Ridges - Single Slot Light Bluish Gray Part 32556a Element 4211709 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2

Trans-Orange 3 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 ×2
  • Pod, Center Barrel Section 10 x 10 x 3 1/3 X-Pod Trans-Orange Part 47674 ×1

White 2 pieces

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

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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