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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.

Tracker I

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75185 Tracker I

523 pieces in 104 part and color combinations, plus 4 minifigures.

The official piece count includes the 34 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Black 166 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Black Part 30377 Element 6330086 or 4223247 2 spares in the box ×2
  • Bar 1 x 4 x 3 [End Tabs] Black Part 62113 Element 4521681 ×1
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×3
  • Bracket 1 x 2 - 2 x 2 Inverted Black Part 99207 Element 6000650 ×6
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×6
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 ×3
  • Brick Curved 4 x 2 No Studs Black Part 93606 Element 4647286 ×3
  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×1
  • Brick Special 1 x 2 with Grille Black Part 2877 Element 287726 ×3
  • Dish 4 x 4 Inverted [Radar] Black Part 3960 Element 396026 ×1
  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Black Part 30552 Element 4158848 ×3
  • Panel 1 x 2 x 3 [Side Supports / Hollow Studs] Black Part 87544 Element 4614788 or 4585452 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×14
  • Plate 2 x 12 Black Part 2445 Element 244526 ×6
  • Plate 2 x 3 Black Part 3021 Element 302126 ×17
  • Plate 2 x 4 Black Part 3020 Element 302026 Also in Dark Bluish Gray ×6
  • Plate 2 x 8 Black Part 3034 Element 303426 ×9
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×3
  • Plate Special 1 x 1 Rounded with Handle Black Part 26047 Element 6157554 ×3
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Black Part 60897 Element 6330189 or 4617547 Also in Dark Bluish Gray ×2
  • Plate Special 1 x 2 with Angled Handles on Side Black Part 92692 Element 4604304 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×3
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×1
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 ×6
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×6
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×12
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×6
  • Tile 2 x 4 with Groove Black Part 87079 Element 4560182 ×3
  • Weapon Gun / Blaster Short (Star Wars) Black Part 58247 Element 4498713 ×1
  • Weapon Lightsaber Hilt with Bottom Ring Black Part 64567 Element 4614712 or 4598897 1 spare in the box ×2
  • Wedge Plate 12 x 3 Right Black Part 47398 Element 4209013 Also in Dark Bluish Gray ×18
  • Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 Also in Dark Bluish Gray ×6
  • Wedge Plate 6 x 3 Left Black Part 54384 Element 4283047 ×6

Dark Bluish Gray 153 pieces

  • Bracket 3 x 2 x 1 1/3 with Pin Bottom Dark Bluish Gray Part 18671 Element 6099909 ×6
  • Brick Sloped 18° 4 x 1 Dark Bluish Gray Part 60477 Element 4535930 ×6
  • Brick Sloped 30° 1 x 2 x 2/3 with Buttons And Red Screens Print Dark Bluish Gray Part 85984pr0006 Element 6152814 ×2
  • Brick Sloped 45° 2 x 2 Dark Bluish Gray Part 3039 Element 4211054 ×1
  • Headwear Accessory Glasses / Goggles Dark Bluish Gray Part 30170 Element 6170695 or 4210645 1 spare in the box ×1
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×3
  • Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray Top Dark Bluish Gray Part 15400 Element 6324200 or 6048898 ×3
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×3
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×3
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×9
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×14
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 Also in Black ×4
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×3
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×3
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Dark Bluish Gray Part 60897 Element 6489464 or 6296892 Also in Black ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×2
  • Plate Special 1 x 2 with Clip Horizontal on End Dark Bluish Gray Part 63868 Element 6336990 or 4581225 ×2
  • Plate Special 4 x 4 with Clips Horizontal (thick open O clips) Dark Bluish Gray Part 11399 Element 6039699 or 6006386 ×3
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×6
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Dark Bluish Gray Part 60483 Element 6265093 or 6006141 ×1
  • Technic Brick 1 x 1 with Pin Hole Dark Bluish Gray Part 6541 Element 4210639 ×6
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Dark Bluish Gray Part 32064a Element 6178919 or 4210935 ×31
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×3
  • Wedge Plate 12 x 3 Right Dark Bluish Gray Part 47398 Element 4209014 Also in Black ×6
  • Wedge Plate 2 x 4 Dark Bluish Gray Part 51739 Element 4527082 ×9
  • Wedge Plate 4 x 2 Left Dark Bluish Gray Part 41770 Element 4210788 ×3
  • Wedge Plate 4 x 2 Right Dark Bluish Gray Part 41769 Element 4210782 Also in Black ×6
  • Wedge Plate 4 x 6 Cut Corners Dark Bluish Gray Part 32059 Element 4521572 or 4210652 ×12

Light Bluish Gray 78 pieces

  • Brick Curved 2 x 2 x 2/3 Light Bluish Gray Part 15068 Element 6102357 ×3
  • Brick Curved 4 x 1 Double, No Studs Light Bluish Gray Part 93273 Element 4622803 ×3
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×3
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×3
  • Equipment Handcuffs Light Bluish Gray Part 61482 Element 6173615 or 4641048 1 spare in the box ×1
  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Light Bluish Gray Part 87552 Element 4593679 ×1
  • Plate Special 1 x 2 with Clip Horizontal on Side Light Bluish Gray Part 11476 Element 6313114 or 6028812 ×15
  • Plate Special 1 x 2, Top Clip [Split] Light Bluish Gray Part 92280 Element 4598526 ×6
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Light Bluish Gray Part 99206 Element 4654577 ×3
  • Plate Special 3 x 2 with Rounded End, Hole Light Bluish Gray Part 3176 Element 4211419 ×4
  • Plate Special 6 x 6 Hexagonal with Pin Hole Light Bluish Gray Part 27255 Element 6173203 ×4
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×4
  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×6
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×19
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×3

Trans-Red 54 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Red Part 30374 Element 6507880 or 6167284 ×2
  • Cone 1 x 1 [Top Groove] Trans-Red Part 59900 Element 6514021 or 6337596 ×3
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×24
  • Projectile, Spring Shooter Ammunition 8L Bar Trans-Red Part 15303 Element 6287550 or 6054526 ×4
  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 2 spares in the box ×4
  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Red Part 2412b Element 6250158 or 4190187 ×17

Blue 40 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Blue Part 61409 Element 4597338 ×6
  • Plate 1 x 8 Blue Part 3460 Element 346023 ×3
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×3
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×3
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×1
  • Tile 1 x 8 with Groove Blue Part 4162 Element 416223 ×3
  • Wedge Plate 2 x 4 Blue Part 51739 Element 4609454 ×12
  • Wedge Plate 4 x 2 Right Blue Part 41769 Element 6430076 or 4160867 ×9

Lime 15 pieces

  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×9
  • Technic Brick 1 x 4 [3 Pin Holes] Lime Part 3701 Element 6132373 or 4166527 ×3
  • Tile 1 x 2 with Groove Lime Part 3069b Element 4500125 or 4164025 ×3

Red 4 pieces

  • Plate Special 1 x 2 [Side Handle Closed Ends] Red Part 48336 Element 4226876 ×3
  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×1

Tan 3 pieces

  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×3

Trans-Brown 3 pieces

  • Windscreen 8 x 4 x 2 with Handle and 2 Studs [Solid Studs] [Plain] Trans-Brown Part 21849 Element 6157482 ×3

Trans-Light Blue 3 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Light Blue Part 30374 Element 6507882 or 6170187 ×1
  • Wave / Lightning Angular, Double with Marbled Trans-Purple Pattern Trans-Light Blue Part 59233pat0001 Element 6514339 or 6450487 ×2

Dark Brown 1 piece

  • Technic Axle and Pin Connector Angled Triple [120° Offset] Dark Brown Part 10288 Element 6273219 or 6005755 ×1

Metallic Silver 1 piece

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

Orange 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

White 1 piece

  • Hat / Helmet, Aviator Cap White Part 30171 Element 6152273 or 4514358 ×1

Minifigures 4 figures

  • Emperor Palpatine, Tan Skin (19888 Cape) Minifigure, checked as a whole figure ×1
  • Rowan, Tan Jacket Minifigure, checked as a whole figure ×1
  • M-OC Hunter Droid Minifigure, checked as a whole figure ×1
  • Imperial Probe Droid - With Stand 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.