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.

Siege Tower

Checking

6061 Siege Tower

198 pieces in 63 part and color combinations, plus 4 minifigures.

The official piece count includes the 18 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 121 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×2
  • Brick 1 x 1 Black Part 3005 Element 300526 ×12
  • Brick 1 x 2 Black Part 3004 Element 300426 ×8
  • Brick 1 x 3 Black Part 3622 Element 362226 ×3
  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick Arch 1 x 3 Black Part 4490 Element 4512727 or 4240242 ×2
  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×6
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Black Part 4460a ×6
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×2
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×10
  • Hinge Brick 1 x 4 [Lower] Black Part 3831 Element 383126 ×1
  • Hinge Brick 1 x 4 [Upper] Black Part 3830 Element 6344999 or 6011458 ×1
  • Hinge Plate 2 x 4 - Female (Digger Bucket Holder) Black Part 3597 Element 4187208 or 359726 ×2
  • Hinge Plate 2 x 4 - Male (Digger Bucket Holder) Black Part 3315 Element 4187207 or 331526 ×2
  • Panel 2 x 5 x 6 Wall with Arched Window Black Part 4444 Element 444426 ×2
  • Plate 1 x 1 Black Part 3024 Element 302426 ×16
  • Plate 1 x 2 Black Part 3023 Element 302326 ×6
  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×2
  • Plate 1 x 6 Black Part 3666 Element 366626 ×11
  • Plate 1 x 8 Black Part 3460 Element 346026 ×2
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×3
  • Plate 6 x 6 Black Part 3958 Element 395826 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] Black Part 4081a ×3
  • Plate Special 1 x 1 with Clip Vertical [Thin Open O Clip] Black Part 4085a ×2
  • Plate Special 2 x 2 with Wheel Holder Black Part 4488 Element 6092658 or 448826 ×4
  • String Cord Thin (0.5mm) 50cm Black Part 56823c50 Element 6530026 or 6489925 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×1
  • Weapon Halberd / Axe Black Part 3848 Element 4118867 or 384826 ×1

Light Gray 58 pieces

  • Brick 1 x 1 Light Gray Part 3005 Element 300502 ×20
  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×10
  • Brick 1 x 3 Light Gray Part 3622 Element 362202 ×4
  • Brick 1 x 8 with Bottom Tubes and 3 Lowered Cross Supports Light Gray Part 3008b ×2
  • Hinge Brick 1 x 4 [Lower] Light Gray Part 3831 Element 383102 ×1
  • Hinge Brick 1 x 4 [Upper] Light Gray Part 3830 Element 383002 ×1
  • Panel 2 x 5 x 6 Wall with Arched Window Light Gray Part 4444 Element 4163327 or 444402 ×3
  • Panel 2 x 5 x 6 Wall with Scattered Stones Dark Gray Print Light Gray Part 4444pr0002 ×1
  • Plate 1 x 1 Light Gray Part 3024 Element 302402 ×2
  • Plate 1 x 8 Light Gray Part 3460 Element 346002 ×2
  • Plate 2 x 10 Light Gray Part 3832 Element 383202 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thin Open O Clip] Light Gray Part 4085a ×2
  • Shield Triangular with Lion Standing Yellow, and Blue Background Print Light Gray Part 3846pr0038 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Light Gray Part 3700 Element 370002 ×2
  • Technic Bush 1/2 Toothed Type I [+ Opening] Light Gray Part 4265a Element 426502 1 spare in the box ×1
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 1 spare in the box ×1
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×1
  • Technic Wedge Belt Wheel [aka Pulley] Light Gray Part 4185 Element 4100502 or 418502 ×1

Brown 10 pieces

  • Ladder 14 x 2.5 Brown Part 4207 Element 4171728 or 420725 ×1
  • Weapon Bow and Arrow [Large] Brown Part 4499 Element 449925 ×1
  • Weapon Pike / Spear Round End Brown Part 4497 ×4
  • Wheel Wagon Large (33mm D.), Round Hole For Wheel Holder Pin Brown Part 4489a ×4

Dark Gray 3 pieces

  • Shield Round with Stud Dark Gray Part 3876 ×1
  • Weapon Sword / Shortsword [Shiny Solid Smooth ABS] Dark Gray Part 3847a ×2

White 3 pieces

  • Animal, Horse, Movable Head, Black Eyes, White Pupils, Brown Bridle Print White Part 4493c01pr0011 Element 4121830 or 73408 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1

Green 2 pieces

  • Plate 2 x 10 Green Part 3832 Element 383228 ×2

Red 1 piece

  • Animal / Creature Accessory, Saddle [One Clip] Red Part 4491a ×1

Minifigures 4 figures

  • Knight (Crusader Axe) - Blue Legs, Neck-Protector Minifigure, checked as a whole figure ×2
  • Archer (Crusader Axe) - Blue Legs Minifigure, checked as a whole figure ×1
  • Knight (Breastplate on Red) - Blue Legs, Red Plume 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.