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.

Slave I

Checking

7144 Slave I

162 pieces in 58 part and color combinations, plus 1 minifigure.

The piece count includes the 4 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.

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Piece checklist

Light Gray 39 pieces

  • Bar 4L (Lightsaber Blade / Wand) Light Gray Part 30374 Element 4129988 ×2
  • Brick 1 x 8 Light Gray Part 3008 Element 300802 ×6
  • Brick Sloped 45° 2 x 2 Light Gray Part 3039 Element 303902 ×1
  • Brick Sloped 45° 2 x 2 Double Convex Light Gray Part 3045 Element 4114057 or 304502 ×2
  • Brick Sloped 45° 2 x 4 Light Gray Part 3037 Element 303702 ×4
  • Brick Special 1 x 2 with Pin Light Gray Part 2458 Element 245802 ×4
  • Hinge Vehicle Roof Holder 1 x 4 Light Gray Part 4315 Element 431502 ×1
  • Plate 2 x 12 Light Gray Part 2445 Element 244502 ×1
  • Plate 4 x 8 Light Gray Part 3035 Element 303502 ×2
  • Plate 6 x 6 Light Gray Part 3958 Element 395802 ×2
  • Technic Axle and Pin Connector Angled #1 Light Gray Part 32013 Element 4106376 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Light Gray Part 32016 Element 4106379 ×4
  • Tile 1 x 2 with Stylised Computer Console Print Light Gray Part 3069bpr0086 Element 4124164 ×5
  • Wedge Plate 3 x 6 Cut Corners Light Gray Part 2419 Element 241902 ×1
  • Wedge Plate 6 x 12 Left Light Gray Part 30355 Element 4124088 ×1
  • Wedge Plate 6 x 12 Right Light Gray Part 30356 Element 4124089 ×1

Green 36 pieces

  • Brick Sloped 18° 4 x 2 Green Part 30363 Element 6522314 or 4270174 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Green Part 3040b Element 4121969 or 4109668 ×8
  • Brick Sloped 45° 2 x 2 Green Part 3039 Element 303928 ×16
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Green Part 3684 Element 4248067 or 4220027 ×4
  • Plate 1 x 4 Green Part 3710 Element 371028 ×3
  • Plate 2 x 10 Green Part 3832 Element 383228 ×1
  • Plate 2 x 4 Green Part 3020 Element 302028 ×2

Black 26 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 1 x 2 x 5 with Han Solo in Carbonite Print Black Part 2454apr0003 Element 4188306 or 4129537 ×1
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 1 x 6 Black Part 3666 Element 366626 ×3
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×4
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×2
  • Tool Chainsaw / Drill Body Black Part 2516 Element 6562846 or 4514341 ×2
  • Wedge Plate 6 x 6 Cut Corner Black Part 6106 Element 4106977 or 610626 ×2

Brown 19 pieces

  • Brick 2 x 2 Corner Brown Part 2357 Element 4124051 or 4112543 ×2
  • Brick Sloped 33° 3 x 1 Brown Part 4286 Element 4118916 or 428625 ×2
  • Brick Sloped 33° 3 x 2 Brown Part 3298 Element 4140484 or 329825 ×4
  • Brick Sloped 45° 10 x 2 x 2 Double Brown Part 30180 Element 4129985 ×2
  • Brick Sloped 45° 2 x 4 Brown Part 3037 Element 4129991 or 303725 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Brown Part 2412b Element 4129977 or 241225 ×7

Dark Gray 15 pieces

  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Dark Gray Part 4287a Element 4112881 or 428727 ×4
  • Panel 1 x 2 x 3 [Hollow Studs] Dark Gray Part 2362b Element 4129976 ×4
  • Plate 2 x 4 Dark Gray Part 3020 Element 4112232 or 302027 ×7

Blue 7 pieces

  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×2
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×1
  • Technic Brick 1 x 6 [5 Pin Holes] Blue Part 3894 Element 389423 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips Blue Part 2555 Element 6031421 or 4500613 ×2

Trans-Neon Orange 7 pieces

  • Brick Special 1 x 1 with Headlight Trans-Neon Orange Part 4070 Element 3006947 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Neon Orange Part 4740 Element 6245295 or 3006347 ×5

White 4 pieces

  • Brick 1 x 10 White Part 6111 Element 6619291 or 611101 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] White Part 3702 Element 4582543 or 370201 ×2

Red 3 pieces

  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Plate Special 2 x 2 with 2 Pin Holes Red Part 2817 Element 281721 ×1

Tan 2 pieces

  • Plate Round Corner 6 x 6 Tan Part 6003 Element 6056484 or 4288370 ×2

Trans-Brown 2 pieces

  • Windscreen 4 x 4 x 2 Canopy Extender, Hinge Trans-Brown Part 2337 Element 4129983 ×1
  • Windscreen 4 x 4 x 3 Canopy Trans-Brown Part 2620 Element 4129984 ×1

Yellow 2 pieces

  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×2

Minifigures 1 figure

  • Boba Fett, Helmet and Jetpack, Light Gray Armor, Plain Legs 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.