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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.

Captain Rex Y-Wing Microfighter

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75391 Captain Rex Y-Wing Microfighter

93 pieces in 45 part and color combinations, plus 1 minifigure.

The official piece count includes the 6 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

White 30 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted White Part 99207 Element 6552151 or 6548279 ×4
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×2
  • Brick Curved, 3 x 1 with 1/3 Inverted Cutout White Part 70681 Element 6615523 or 6357598 ×2
  • Brick Round 2 x 2, Pin Holes White Part 17485 Element 6218899 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box Also in Trans-Clear ×2
  • Brick Wedged 2 x 2 Facet White Part 87620 Element 6601848 or 6137926 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×2
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×4
  • Technic Brick 1 x 4 [3 Pin Holes] White Part 3701 Element 6601913 or 370101 ×2
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 1 spare in the box ×1

Blue 15 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Blue Part 11477 Element 6055065 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Blue Part 11211 Element 6189191 ×1
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×1
  • Plate Special 1 x 2 Rounded with 2 Open Studs Blue Part 35480 Element 6315482 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Blue Part 15573 Element 6092582 ×3
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Tile 1 x 3 Blue Part 63864 Element 4587840 ×2
  • Tile Special 2 x 2 Corner with Cut Corner - Facet Blue Part 27263 Element 6333512 ×2
  • Wedge Plate 4 x 4 with 2 x 2 Cutout Blue Part 43719 Element 6315291 or 4234930 ×1

Light Bluish Gray 15 pieces

  • Bracket 1 x 1 - 1 x 2 Inverted Light Bluish Gray Part 73825 Element 6345639 ×2
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×1
  • Brick Round 2 x 2 Truncated Cone Light Bluish Gray Part 98100 Element 6028324 ×2
  • Brick Round 2 x 2 [Grill] Light Bluish Gray Part 92947 Element 4650645 or 4610816 ×4
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×3
  • Plate 2 x 8 Light Bluish Gray Part 3034 Element 4211406 ×1
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×2

Dark Bluish Gray 11 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 with Buttons And Red Screens Print Dark Bluish Gray Part 85984pr0006 Element 6152814 ×1
  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 69755 Element 6360675 1 spare in the box ×2
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 1 spare in the box ×4
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×3

Black 8 pieces

  • Bar 3L Black Part 87994 Element 6185316 or 6093525 1 spare in the box ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×2
  • Weapon Gun Automatic Pistol Medium Barrel Black Part 62885 Element 6103643 or 6052829 ×2

Trans-Red 4 pieces

  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×4

Bright Pink 2 pieces

  • Brick 1 x 1 Bright Pink Part 3005 Element 4286050 or 4245298 ×2

Pearl Titanium 2 pieces

  • Launcher, Plate Special 1 x 2 with Mini Blaster Square Pearl Titanium Part 69754 Element 6345952 ×2

Trans-Clear 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box Also in White ×2

Trans-Dark Pink 2 pieces

  • Dish 2 x 2 Inverted [Radar] Trans-Dark Pink Part 4740 Element 6580376 or 6245302 ×2

Tan 1 piece

  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×1

Trans-Light Blue 1 piece

  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×1

Minifigures 1 figure

  • Captain Rex 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.

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