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.

Armored Assault Tank (AAT)

Checking

75283 Armored Assault Tank (AAT)

268 pieces in 109 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

Dark Blue 68 pieces

  • Bracket 1 x 1 - 1 x 1 Dark Blue Part 36841 Element 6554219 or 6254479 ×2
  • Brick Arch 1 x 6 x 3 1/3 Curved Top Dark Blue Part 6060 Element 6258414 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Blue Part 6091 Element 6411363 or 6115447 ×2
  • Brick Curved 1 x 3 x 2 Dark Blue Part 33243 Element 6097486 or 4591837 ×4
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Blue Part 11477 Element 6554198 or 6094143 ×2
  • Brick Curved 2 x 2 x 2/3 Dark Blue Part 15068 Element 6554196 or 6061569 ×2
  • Brick Curved 2 x 2, Two Top Studs Dark Blue Part 30165 Element 6175295 ×4
  • Brick Round 2 x 2 with Axle Hole Dark Blue Part 3941 Element 4505985 ×2
  • Brick Round Corner 6 x 6 x 2 Dark Blue Part 87559 Element 6309137 ×2
  • Cone 2 x 2 x 2, Open Stud Dark Blue Part 3942c Element 6636409 or 6144754 ×2
  • Dish 3 x 3 Inverted [Radar] Dark Blue Part 43898 Element 6309134 or 4667979 ×1
  • Dish 4 x 4 Inverted [Radar] Dark Blue Part 3960 Element 6192843 or 4277766 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Dark Blue Part 73983 Element 6135593 ×2
  • Plate 2 x 2 Corner Dark Blue Part 2420 Element 4528482 or 4252046 ×2
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 ×6
  • Plate 2 x 6 Dark Blue Part 3795 Element 6097420 or 4649974 ×1
  • Plate Round Corner 4 x 4 Dark Blue Part 30565 Element 6023154 or 4506996 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Blue Part 35480 Element 6236571 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Blue Part 15573 Element 6554197 or 6092588 ×2
  • Plate Special 1 x 2 with Pin Hole on Top Dark Blue Part 11458 Element 6223838 ×5
  • Plate Special 2 x 2 with Only 2 studs Dark Blue Part 33909 Element 6554209 or 6214810 ×2
  • Tile 1 x 2 with Groove Dark Blue Part 3069b Element 6554190 or 4528488 ×6
  • Tile 2 x 2 Curved, Macaroni Dark Blue Part 27925 Element 6199898 ×2
  • Tile Round 1 x 1 Dark Blue Part 98138 Element 6284584 or 6219601 1 spare in the box ×2
  • Tile Round 1 x 1 Quarter Dark Blue Part 25269 Element 6554207 or 6199890 1 spare in the box ×2
  • Wedge Plate 3 x 3 Cut Corner Dark Blue Part 2450 Element 6554202 or 6110050 ×2

Light Bluish Gray 66 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×4
  • Bracket 1 x 2 - 2 x 4 Light Bluish Gray Part 93274 Element 6118827 or 4613165 ×2
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×3
  • Brick 2 x 3 Light Bluish Gray Part 3002 Element 4211386 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Light Bluish Gray Part 11477 Element 6028813 ×6
  • Brick Curved 3 x 1 No Studs Light Bluish Gray Part 50950 Element 4251163 ×4
  • Brick Round 3 x 4 x 2/3 Triple Curved with 2 Sunk Studs Light Bluish Gray Part 93604 Element 6157781 ×3
  • Brick Sloped 18° 4 x 1 Light Bluish Gray Part 60477 Element 6013497 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×2
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Light Bluish Gray Part 26604 Element 6267495 ×2
  • Brick Wedged, Sloped 18° 4 x 4 Corner Light Bluish Gray Part 43708 Element 6309133 or 4180391 ×2
  • Hinge Plate 2 x 4 with Pin Hole with 2 Holes - Top Light Bluish Gray Part 43045 Element 6256117 ×1
  • Lever Small Base with Light Bluish Gray Lever Light Bluish Gray Part 298c05 Element 6267587 or 4226285 1 spare in the box ×1
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×7
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×4
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×5
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×4
  • Plate Round 6 x 6 with Hole Light Bluish Gray Part 11213 Element 6015349 ×1
  • Plate Round Corner 3 x 3 Light Bluish Gray Part 30357 Element 4645412 or 4211756 ×4
  • Plate Special 4 x 4 with 2 x 2 Opening Light Bluish Gray Part 64799 Element 4612621 ×1
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×3
  • Tile 2 x 2 Corner Light Bluish Gray Part 14719 Element 6065824 ×1
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×2

Black 41 pieces

  • Antenna 1 x 4 with Flat Top Black Part 3957b Element 395726 ×2
  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Black Part 48729b Element 6278152 or 6037347 1 spare in the box ×2
  • Bar 8L - Two Stop Rings / One Pin, Technic Figure Ski Pole [Flat End] Black Part 2714b Element 6361933 or 6278257 ×3
  • Brick 2 x 10 Black Part 3006 Element 4617860 or 300626 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped Inverted 45° 6 x 4 Double with 4 x 4 Recessed and 3 Holes Black Part 60219 Element 4541984 ×1
  • Plate 1 x 4 Black Part 3710 Element 371026 ×5
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×4
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Black Part 10247 Element 6061032 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×1
  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×2
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×3
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×3
  • Tile Special 1 x 1 with Clip with Rounded Edges Black Part 15712 Element 6335388 or 6066102 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×3
  • Turntable 4 x 4 Square Base, Locking Black Part 61485 Element 4517986 ×1
  • Weapon Gun / Blaster Short (Star Wars) Black Part 58247 Element 4498713 ×1
  • Window 2 x 4 x 3 Frame with Hollow Studs Black Part 60598 Element 6231575 ×1

Dark Bluish Gray 41 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Bluish Gray Part 6091 Element 6411327 or 4210797 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 with Buttons And Red Screens Print Dark Bluish Gray Part 85984pr0006 Element 6152814 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 with Dark Red Horizon Screen and Gold Switches and Buttons Print Dark Bluish Gray Part 85984pr0002 Element 6101924 ×1
  • Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray Top Dark Bluish Gray Part 15400 Element 6324200 or 6048898 ×2
  • Plate 1 x 10 Dark Bluish Gray Part 4477 Element 4257526 or 4210816 ×2
  • Plate 2 x 10 Dark Bluish Gray Part 3832 Element 4210678 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×3
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×2
  • Plate 3 x 3 Dark Bluish Gray Part 11212 Element 6039176 ×2
  • Plate 6 x 10 Dark Bluish Gray Part 3033 Element 4211114 ×1
  • Plate Round 1 x 1 with Open Stud Dark Bluish Gray Part 85861 Element 6231765 1 spare in the box ×1
  • Plate Special 1 x 2 [Side Handle Closed Ends] Dark Bluish Gray Part 48336 Element 6146321 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×2
  • Plate Special 1 x 2 with Door Rail Dark Bluish Gray Part 32028 Element 4543086 or 4541289 ×1
  • Plate Special 4 x 4 with Clips Horizontal (thick open O clips) Dark Bluish Gray Part 11399 Element 6039699 or 6006386 ×1
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Dark Bluish Gray Part 60483 Element 6265093 or 6006141 ×4
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×4
  • Tile 1 x 3 Dark Bluish Gray Part 63864 Element 4568734 ×2
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×5
  • Tile 2 x 4 with Groove Dark Bluish Gray Part 87079 Element 4560184 ×1

Dark Tan 13 pieces

  • Plate 1 x 2 Dark Tan Part 3023 Element 4528604 or 4497082 ×11
  • Wedge Plate 2 x 2 Cut Corner Dark Tan Part 26601 Element 6228921 ×2

Tan 9 pieces

  • Bracket 1 x 2 - 1 x 2 Tan Part 99781 Element 6249809 or 6092684 ×4
  • Brick Special 1 x 2 with 2 Studs on 1 Side Tan Part 11211 Element 6024495 ×5

Trans-Clear 6 pieces

  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Clear Part 2654 Element 6581772 or 6163901 ×6

White 4 pieces

  • Bracket 1 x 2 - 1 x 4 [Rounded Corners at Bottom, Square Corners at Top] White Part 28802 Element 6548284 or 6168618 ×2
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×2

Reddish Brown 3 pieces

  • Brick 1 x 3 Reddish Brown Part 3622 Element 4245312 or 4211220 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Reddish Brown Part 87580 Element 4565394 ×1

Trans-Red 3 pieces

  • Projectile, Spring Shooter Ammunition 8L Bar Trans-Red Part 15303 Element 6287550 or 6054526 ×3

Bright Pink 2 pieces

  • Brick 2 x 2 Bright Pink Part 3003 Element 4550359 or 4245307 ×2

Metallic Silver 2 pieces

  • Weapon Lightsaber Hilt with Bottom Ring Metallic Silver Part 64567 Element 6546103 or 6051389 1 spare in the box ×2

Pearl Titanium 2 pieces

  • Weapon Gun / Blaster Short (Star Wars) Pearl Titanium Part 58247 Element 6122730 ×2

Red 2 pieces

  • Brick Wedged, Angled 3 x 2 Left Red Part 6565 Element 6256588 or 4527765 ×1
  • Brick Wedged, Angled 3 x 2 Right Red Part 6564 Element 6256585 or 4526929 ×1

Trans-Light Blue 2 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Light Blue Part 30374 Element 6507882 or 6170187 ×2

Yellow 2 pieces

  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×2

Flat Silver 1 piece

  • Weapon Sword / Foil / Épée Flat Silver Part 93550 Element 6222063 or 4618270 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 75283-1 [No Color/Any Color] Part 68678 Element 6308062 ×1

Minifigures 4 figures

  • Battle Droid, Kashyyyk Minifigure, checked as a whole figure ×2
  • Ahsoka Tano (Adult) Minifigure, checked as a whole figure ×1
  • Clone Trooper, 332nd Company, Orange Markings 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.