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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.

Security Smash

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8199 Security Smash

137 pieces in 72 part and color combinations.

LEGO counts 135 pieces. This inventory comes from a separate parts catalog and lists 137; the two do not always count the same elements, so their totals differ. 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 42 pieces

  • Bar 1 x 4 x 3 [End Tabs] Black Part 62113 Element 4521681 ×1
  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×1
  • Brick 1 x 4 Black Part 3010 Element 301026 Also in Dark Bluish Gray ×1
  • Brick 2 x 3 Black Part 3002 Element 300226 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×1
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×1
  • Plate Special 2 x 2 with Wheels Holder Wide Black Part 6157 Element 615726 ×5
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1
  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 ×6
  • Tyre 17.5 x 6 with Shallow Staggered Treads Black Part 51011 Element 4515290 or 4239237 ×4
  • Wheel 11 x 6 mm with Five Spokes and Silver Print Black Part 50944pr0001 Element 6022424 or 4248538 ×10

Light Bluish Gray 32 pieces

  • Antenna 1 x 4 with Rounded Top Light Bluish Gray Part 3957a ×2
  • Bracket 1 x 2 - 1 x 4 [Square Corners] Light Bluish Gray Part 2436 Element 4282740 or 4211358 ×1
  • Plate 2 x 8 Light Bluish Gray Part 3034 Element 4211406 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Light Bluish Gray Part 4085c Element 4211479 ×2
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×2
  • Plate Special 2 x 2 with Grills Light Bluish Gray Part 41862 Element 4211748 ×1
  • Plate Special 4 x 6, Studs on 3 Edges Light Bluish Gray Part 6180 Element 4211838 ×2
  • Technic Beam 1 x 15 Thick Light Bluish Gray Part 32278 Element 4542577 or 4211770 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×2
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×6
  • Technic Pin Connector Perpendicular Long Light Bluish Gray Part 32557 Element 4211714 ×2
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×3
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×3
  • Tile Special 1 x 1 with Clip and Straight Tips Light Bluish Gray Part 2555 Element 4211369 or 2555194 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×2

Lime 21 pieces

  • Bracket 1 x 2 - 2 x 2 Lime Part 44728 Element 6212972 or 6120340 ×1
  • Brick 2 x 2 Lime Part 3003 Element 4220632 or 4122451 ×1
  • Brick 2 x 3 Lime Part 3002 Element 4220631 or 4122452 ×1
  • Brick 2 x 4 Lime Part 3001 Element 4165967 or 4122453 ×2
  • Brick Curved 3 x 1 No Studs Lime Part 50950 Element 4537928 ×3
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×1
  • Plate 1 x 3 Lime Part 3623 Element 4534664 or 4271564 ×4
  • Plate 2 x 2 Lime Part 3022 Element 4613977 or 4537937 ×1
  • Plate 2 x 4 Lime Part 3020 Element 4537936 or 4534667 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Lime Part 3794a Element 4160084 ×4
  • Wheel Arch, Mudguard 1 x 4 1/2 Lime Part 50947 Element 6073009 or 4284253 ×2

Dark Bluish Gray 20 pieces

  • Box / Case, Fold-Out Race Track 34 x 42 Dark Bluish Gray Part 86501 Element 4550694 ×1
  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×1
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 Also in Black ×2
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×2
  • Brick Special 1 x 1 with Handle Dark Bluish Gray Part 2921 Element 4211121 ×1
  • Mudguard 2 x 4 with Molded Headlights Dark Bluish Gray Part 44674 Element 4568939 or 4243983 ×1
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×2
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×3
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×2
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Dark Bluish Gray Part 59443 Element 6084613 or 4516546 ×2
  • Tile Special 2 x 3 with 2 Clips [Thick U Clips] Dark Bluish Gray Part 30350c ×1
  • Wheel Arch, Mudguard 2 x 4 Studded Dark Bluish Gray Part 3788 ×1

Blue 4 pieces

  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Blue Part 3794a ×2
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2

Tan 4 pieces

  • Brick 2 x 2 Tan Part 3003 Element 4114306 or 300305 ×2
  • Tile 2 x 2 with Groove Tan Part 3068b Element 4185177 or 4114002 ×2

White 3 pieces

  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×1
  • Panel 1 x 4 x 3 [Side Supports / Hollow Studs] White Part 60581 Element 6615548 or 4558208 ×1
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×1

Green 2 pieces

  • Tile 1 x 2 with '100' Banknote Print Green Part 3069bpr0100 Element 4295260 or 82317 ×2

Red 2 pieces

  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×2

Trans-Orange 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×2

[No Color/Any Color] 2 pieces

  • Sticker Sheet 1 for Set 8199-1 [No Color/Any Color] Part 88163 Element 4566057 ×1
  • Sticker Sheet 2 for Set 8199-1 [No Color/Any Color] Part 88164 Element 4566058 ×1

Trans-Dark Blue 1 piece

  • Tile 1 x 2 with Groove Trans-Dark Blue Part 3069b Element 6514219 or 6251289 ×1

Trans-Yellow 1 piece

  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 ×1

Yellow 1 piece

  • Container Lid for Part 86501 Yellow Part 64700 ×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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