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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.

Bounty Hunter Assault Gunship

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20021 Bounty Hunter Assault Gunship

81 pieces in 35 part and color combinations.

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

Dark Bluish Gray 31 pieces

  • Brick Round 1 x 1 with Fins, Open Stud Dark Bluish Gray Part 4588 Element 6331222 or 6321195 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Dark Bluish Gray Part 87087 Element 4558955 ×8
  • Cone 2 x 2 x 2, Open Stud Dark Bluish Gray Part 3942c Element 6533790 or 6092666 ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×2
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×2
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Dark Bluish Gray Part 2444 Element 4196768 ×2
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×4
  • Tile Special 1 x 1 with Clip with Rounded Tips Dark Bluish Gray Part 12825 Element 6030710 ×2
  • Wedge Plate 4 x 2 Left Dark Bluish Gray Part 41770 Element 4210788 ×1
  • Wedge Plate 4 x 2 Right Dark Bluish Gray Part 41769 Element 4210782 ×1

Dark Green 20 pieces

  • Brick Curved 3 x 1 No Studs Dark Green Part 50950 Element 4267850 ×6
  • Brick Round 2 x 2 x 2 Robot Body, Axle Holder '+' Orientation Dark Green Part 30361c Element 6069269 or 4506417 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Green Part 54200 Element 6618111 or 4504375 1 spare in the box ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Dark Green Part 4287b ×2
  • Plate 1 x 6 Dark Green Part 3666 Element 6618082 or 4245566 ×2
  • Tile 1 x 4 with Groove Dark Green Part 2431 Element 4543949 or 4248267 ×4
  • Wedge Plate 3 x 4 with Stud Notches Dark Green Part 48183 Element 4520300 or 4259842 ×2

Black 9 pieces

  • Brick Arch 1 x 3 x 2 Black Part 88292 Element 4581280 ×2
  • Equipment Hose Nozzle / Gun with Side String Hole Simplified Black Part 60849 Element 6641462 or 4537551 ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2

Light Bluish Gray 9 pieces

  • Cone 1 x 1 [Top Groove] Light Bluish Gray Part 59900 Element 4529241 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×4
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Light Bluish Gray Part 4081b Element 6281998 or 4632575 ×2

Yellow 6 pieces

  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×4

Trans-Brown 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Brown Part 54200 Element 6245263 or 4244368 1 spare in the box ×2

Trans-Red 2 pieces

  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×2

Trans-Yellow 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×2

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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