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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 America: Outriders Attack

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76123 Captain America: Outriders Attack

144 pieces in 72 part and color combinations, plus 4 minifigures.

LEGO counts 167 pieces. This inventory comes from a separate parts catalog and lists 176, including the 32 parts inside the minifigures; 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.

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Piece checklist

Technic Pins 17 pieces

  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×7
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×4
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×2

Plates Round Curved and Dishes 16 pieces

  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×1
  • Plate Round 1 x 1 with Open Stud Black Part 85861 Element 6168646 or 6100627 1 spare in the box ×8
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×1
  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Bluish Gray Part 35480 Element 6221607 ×2
  • Plate Round Corners 2 x 6 Double Light Bluish Gray Part 18980 Element 6105964 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Clear Part 2654 Element 6581772 or 6163901 ×1
  • Plate Round 1 x 1 with Open Stud Trans-Orange Part 85861 Element 6510162 or 6174023 1 spare in the box ×2

Plates 11 pieces

  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 1 spare in the box ×6
  • Plate 1 x 2 Dark Blue Part 3023 Element 6554191 or 4528981 ×2
  • Plate 2 x 3 Dark Blue Part 3021 Element 6554192 or 4530028 ×1
  • Plate 2 x 8 Light Bluish Gray Part 3034 Element 4211406 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1

Energy Effects 10 pieces

  • Wave / Power Burst / Flame Blaster with Handle Trans-Orange Part 35032a ×2
  • Wave / Power Burst / Flame, Bolt Large with Bar Ends Trans-Orange Part 35032b ×2
  • Wave / Power Burst / Flame, Bolt Small with Bar Ends Trans-Orange Part 35032c ×2
  • Wave / Power Burst / Flame, Bolt Spiral with Bar Ends Trans-Orange Part 35032d ×2
  • Wave / Power Burst / Flame, Shield Large with Bar End Trans-Orange Part 35032e ×1
  • Wave / Power Burst / Flame, Shield Small with Bar Ends Trans-Orange Part 35032f ×1

Bricks Round and Cones 8 pieces

  • Cone 1 x 1 [Top Groove] Flat Silver Part 59900 Element 6121350 ×2
  • Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Pearl Titanium Part 25214 Element 6156875 ×4
  • Cone 1 x 1 [Top Groove] Trans-Orange Part 59900 Element 6514017 or 6172233 ×2

Plates Special 8 pieces

  • Plate Special 1 x 2 with Clip Horizontal on Side Black Part 11476 Element 6313116 or 6132731 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Dark Bluish Gray Part 10247 Element 6047417 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Bluish Gray Part 18674 Element 6115080 ×1
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×1
  • 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 ×1
  • Plate Special 2 x 2 with Only 2 studs Reddish Brown Part 33909 Element 6196221 ×1

Tiles Special 8 pieces

  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×1
  • Tile Special 2 x 2 Inverted Black Part 11203 Element 6013867 ×1
  • Tile Special 2 x 2 Corner with Cut Corner - Facet Dark Blue Part 27263 Element 6166854 ×4
  • Tile Special 2 x 3 Pentagonal Dark Blue Part 22385 Element 6245268 or 6185111 ×2

Bricks Special 7 pieces

  • Brick Special 1 x 2 with Pin Black Part 2458 Element 6116990 or 245826 ×1
  • Bracket 3 x 2 x 1 1/3 with Pin Bottom Dark Blue Part 18671 Element 6132157 ×2
  • Brick Special 1 x 2 with 2 Pins, Round Pin Holes Light Bluish Gray Part 30526 Element 4211660 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×2

Bricks Curved 6 pieces

  • Brick Curved 2 x 2 x 2/3 Dark Blue Part 15068 Element 6554196 or 6061569 ×2
  • Brick Curved 3 x 1 No Studs Dark Brown Part 50950 Element 6022199 ×2
  • Brick Curved Inverted 2 x 1 Light Bluish Gray Part 24201 Element 6144138 ×2

Technic Connectors 6 pieces

  • Technic Pin Connector Round 1L [Beam] Black Part 18654 Element 6121485 1 spare in the box ×2
  • Technic Pin Connector Round [Slotted] Pearl Titanium Part 62462 Element 6245501 or 6167943 ×4

Bricks Sloped 5 pieces

  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud Dark Blue Part 28192 Element 6166857 ×4
  • Brick Sloped Inverted 45° 6 x 2 Double with 2 x 4 Recessed Dark Bluish Gray Part 22889 Element 6182451 ×1

Tiles Round and Curved 5 pieces

  • Tile Round 2 x 2 with 'A' Avengers Symbol Print Dark Bluish Gray Part 14769pr1131 Element 6258005 ×3
  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×2

Technic Axles 4 pieces

  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×2
  • Technic Axle 4 Red Part 3705 Element 6129995 or 4265797 ×2

Technic Beams 4 pieces

  • Technic Beam 1 x 7 Thick Dark Blue Part 32524 Element 6217673 ×2
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Dark Bluish Gray Part 32348 Element 32348199 or 6278127 ×2

Wheels and Tyres 4 pieces

  • Tyre Offroad 37 x 14 Black Part 35578 Element 6518604 or 6248793 ×2
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×2

Bars, Ladders and Fences 3 pieces

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Black Part 48729b Element 6278152 or 6037347 1 spare in the box ×1
  • Bar Holder with Clip Yellow Part 11090 Element 6341463 or 6015892 ×2

Minifig Shields, Weapons, & Tools 3 pieces

  • Shield Round Bowed with Red, White, and Blue Circles with Star Print (Captain America) Dark Bluish Gray Part 75902pr0019 Element 6261471 ×1
  • Weapon Bladed Claw Spread Pearl Gold Part 10187 Element 6241936 1 spare in the box ×2

Plates Wedged 3 pieces

  • Wedge Plate 2 x 4 Light Bluish Gray Part 51739 Element 4507056 or 4252368 ×1
  • Wedge Plate 3 x 3 Cut Corner Light Bluish Gray Part 2450 Element 4211361 ×2

Technic Bricks 3 pieces

  • Technic Brick 1 x 6 [5 Pin Holes] Dark Bluish Gray Part 3894 Element 4210917 or 3894199 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Red Part 32064a Element 6196217 or 4513987 ×2

Transportation - Land 3 pieces

  • Grille Bar 1 x 4 x 1 2/3 Bull Bar, Rounded Black Part 35654 Element 6207258 ×1
  • Wheel Arch, Curved Wedge 4 x 3 with 2 x 2 Opening and 4 Studs Dark Blue Part 47755 Element 6251249 or 4529745 ×1
  • Handlebars Dark Bluish Gray Part 30031 Element 4261908 or 4210644 ×1

Minifig Accessories 2 pieces

  • Equipment Hose Nozzle / Gun with Side String Hole Simplified Black Part 60849 Element 6641462 or 4537551 1 spare in the box ×2

Projectiles / Launchers 2 pieces

  • Launcher, Brick Special 1 x 4 with Inside Clips (Disk Shooter) with Recessed Center 2 Studs Light Bluish Gray Part 16968 Element 6096150 ×2

Technic Bushes 2 pieces

  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×2

Technic Gears 2 pieces

  • Technic Worm Gear Type 2 Light Bluish Gray Part 32905 Element 6185471 ×2

Stickers 1 piece

  • Sticker Sheet for Set 76123-1 [No Color/Any Color] Part 49538 Element 6259705 ×1

Technic Beams Special 1 piece

  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced Light Bluish Gray Part 33299b Element 4563045 ×1

Minifigures 4 figures

  • Outrider with Shoulder Armor Minifigure, checked as a whole figure ×1
  • Outrider with Claws Minifigure, checked as a whole figure ×2
  • Captain America, White Advanced Tech (Quantum) Suit 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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