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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.

Wright Flyer

Checking

10124 Wright Flyer

663 pieces in 114 part and color combinations.

LEGO counts 670 pieces. This inventory comes from a separate parts catalog and lists 663; 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

Brown 280 pieces

  • Bar 1 x 12 with 1 x 2 Plate End with Solid Studs and 1 x 1 Round Plate End Brown Part 42445 Element 4184425 ×10
  • Brick 1 x 1 Brown Part 3005 Element 4160990 or 300525 ×8
  • Brick 1 x 2 Brown Part 3004 Element 300425 ×12
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Brown Part 2454a Element 4213526 or 4129563 ×4
  • Brick Arch 1 x 6 x 3 1/3 Curved Top Brown Part 6060 Element 4208076 or 606025 ×2
  • Brick Arch 1 x 8 x 2 Brown Part 3308 Element 4207348 or 330825 ×1
  • Brick Round 1 x 1 Open Stud Brown Part 3062b Element 4107810 ×8
  • Brick Sloped 33° 3 x 1 Brown Part 4286 Element 4118916 or 428625 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Brown Part 3040b Element 4121971 or 4113255 ×6
  • Brick Sloped Inverted 45° 2 x 1 Brown Part 3665 Element 4143261 or 366525 ×2
  • Brick Special 1 x 1 with Headlight Brown Part 4070 Element 4118863 or 407025 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Brown Part 44301a Element 4183042 ×6
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Brown Part 44302a Element 4183054 ×6
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Brown Part 73983 Element 4187366 ×10
  • Hinge Plate 1 x 8 Locking with Angled Side Extensions, Rounded Plate Underside, 9 Teeth Brown Part 30407 Element 4162496 ×4
  • Plate 1 x 1 Brown Part 3024 Element 4212939 or 4212301 ×6
  • Plate 1 x 10 Brown Part 4477 Element 4212941 or 4212303 ×26
  • Plate 1 x 2 Brown Part 3023 Element 302325 ×12
  • Plate 1 x 3 Brown Part 3623 Element 362325 ×5
  • Plate 1 x 4 Brown Part 3710 Element 4114378 or 371025 ×6
  • Plate 1 x 6 Brown Part 3666 Element 4129580 or 366625 ×4
  • Plate 1 x 8 Brown Part 3460 Element 4212940 or 4212305 ×16
  • Plate 2 x 10 Brown Part 3832 Element 4141708 or 383225 ×3
  • Plate 2 x 12 Brown Part 2445 Element 4143356 ×2
  • Plate 2 x 16 Brown Part 4282 Element 4129502 ×6
  • Plate 2 x 2 Brown Part 3022 Element 4109983 ×4
  • Plate 2 x 4 Brown Part 3020 Element 4109982 or 302025 ×4
  • Plate Round 1 x 1 with Solid Stud Brown Part 6141 Element 4162489 or 4128577 1 spare in the box ×4
  • Plate Special 1 x 4 with Towball Brown Part 3184 Element 4208104 or 4114304 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Brown Part 2444 Element 4208094 or 244425 ×8
  • Plate Special 3 x 2 with Rounded End, Hole Brown Part 3176 Element 4208106 or 317625 ×4
  • Technic Beam 1 x 6 Thin Brown Part 32063 Element 4191076 ×1
  • Technic Brick 1 x 1 with Pin Hole Brown Part 6541 Element 4179422 or 654125 ×10
  • Technic Brick 1 x 2 [1 Pin Hole] Brown Part 3700 Element 4163245 or 4125225 ×4
  • Technic Link 1 x 9 Brown Part 32293 Element 4162506 ×14
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Brown Part 32530 Element 4207614 ×12
  • Technic Pin Connector Plate with One Hole (Single on Bottom) Brown Part 32529 Element 4207615 ×14
  • Technic Pin Connector Round [No Slot] Brown Part 75535 Element 4141409 ×3
  • Tile 1 x 1 with Groove Brown Part 3070b Element 4181973 or 307025 1 spare in the box ×2
  • Tile 1 x 2 with Groove Brown Part 3069b Element 306925 ×2
  • Tile 1 x 4 with Groove Brown Part 2431 Element 4116732 or 243125 ×6
  • Tile 1 x 6 with Groove Brown Part 6636 Element 4129506 or 4108154 ×5
  • Tile 1 x 8 with Groove Brown Part 4162 Element 4176634 or 416225 ×8
  • Tile 2 x 2 with Groove Brown Part 3068b Element 4191067 or 4162460 ×2

Black 174 pieces

  • Bar 6.6L with Stop Ring [Umbrella Stand] Black Part 4095 Element 409526 ×1
  • Bar 8L - Two Stop Rings / One Pin, Technic Figure Ski Pole [Rounded End] Black Part 2714a Element 4120251 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Black Part 6091 Element 6383142 or 6184784 ×4
  • Brick Curved 2 x 4 x 1 1/3 Black Part 6081 Element 6174252 or 4125550 ×1
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×1
  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Black Part 30552 Element 4158848 ×4
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×1
  • Rubber Band Small 13mm (Square Cross Section) Black Part 71509 Element 4141606 or 4107153 3 spares in the box ×1
  • String with End Studs 11L Overall Black Part 14226c11 Element 6096955 or 6037558 ×1
  • String with End Studs 21L Overall Black Part 14226c21 Element 4109617 ×4
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Black Part 6553 Element 4107765 or 655326 ×2
  • Technic Axle 10 Black Part 3737 Element 373726 ×3
  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×3
  • Technic Link Black Part 3711a Element 371126 2 spares in the box ×91
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 ×3
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×8
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×24
  • Technic Wishbone Suspension Arm 9L Black Part 32294 Element 6510909 or 6389430 ×8
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×2

Tan 150 pieces

  • Plate 1 x 10 Tan Part 4477 Element 4143409 or 447705 ×18
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×22
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×10
  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×7
  • Plate 2 x 3 Tan Part 3021 Element 4118790 or 302105 ×12
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×8
  • Plate 2 x 8 Tan Part 3034 Element 4113988 or 303405 ×2
  • Plate 4 x 12 Tan Part 3029 Element 6093484 or 4209160 ×10
  • Plate Round Corner 4 x 4 Tan Part 30565 Element 4570516 or 4295315 ×4
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Tan Part 3794a Element 379405 ×5
  • Plate Special 4 x 4, Studs on One Edge Plain] Tan Part 6179 Element 6383728 or 6037549 ×4
  • Plate Special 4 x 6, Studs on 3 Edges Tan Part 6180 Element 4212938 or 4141473 ×4
  • Plate Special 6 x 12, Studs on 3 Edges Tan Part 6178 Element 4173406 or 4108160 ×2
  • Plate Special 6 x 16, Studs on 3 Edges Tan Part 6205 Element 4207601 or 620505 ×14
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×1
  • Tile 1 x 6 with Groove Tan Part 6636 Element 4157277 or 4108151 ×2
  • Tile 2 x 2 with Groove Tan Part 3068b Element 4185177 or 4114002 ×5
  • Wedge Plate 3 x 3 Cut Corner Tan Part 2450 Element 4208072 or 245005 ×4
  • Wedge Plate 4 x 2 Left Tan Part 41770 Element 6177891 or 4545384 ×4
  • Wedge Plate 4 x 2 Right Tan Part 41769 Element 6177890 or 4616490 ×4
  • Wedge Plate 7 x 6 Boat Bow without Stud Notches Tan Part 2625 ×4
  • Wedge Plate 9 x 10 Boat Bow Tan Part 2621 Element 4191099 ×4

Light Gray 39 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Light Gray Part 30377 Element 4142794 or 4125288 1 spare in the box ×6
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Light Gray Part 4349 Element 434902 ×4
  • Plate Round 1 x 1 with Towball and Hexagonal Hole [Maxifig Hand] Light Gray Part 3614b Element 361402 ×2
  • Plate Special 2 x 2 with Pin on Bottom, Small Holes in Plate and Rotational Locking Fingers on Underside Light Gray Part 2476b ×2
  • Tap 1 x 1 with Hole in Spout Light Gray Part 4599a Element 459902 ×1
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×4
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×7
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Gray Part 4019 Element 4107176 or 401902 ×2
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Light Gray Part 3648b Element 4107543 or 364802 ×2
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 1 spare in the box ×6
  • Technic Wedge Belt Wheel [aka Pulley] Light Gray Part 4185 Element 4100502 or 418502 ×1
  • Tile Special 1 x 1 with Clip and Straight Tips Light Gray Part 2555 Element 255502 ×2

Dark Gray 20 pieces

  • Bar 4L (Lightsaber Blade / Wand) Dark Gray Part 30374 Element 4124424 ×2
  • Brick 1 x 1 Dark Gray Part 3005 Element 4114079 or 300527 ×1
  • Brick 1 x 2 Dark Gray Part 3004 Element 4113909 or 300427 ×1
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Dark Gray Part 2454a Element 4113235 or 245427 ×1
  • Brick Sloped 33° 3 x 1 Dark Gray Part 4286 Element 4108045 or 428627 ×1
  • Brick Special 1 x 1 with Headlight Dark Gray Part 4070 Element 4108044 or 407027 ×4
  • Plate 1 x 2 Dark Gray Part 3023 Element 4111983 or 302327 ×3
  • Plate 2 x 6 Dark Gray Part 3795 Element 379527 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Dark Gray Part 6019 Element 4125262 or 601927 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Gray Part 3794a Element 4118864 or 379427 ×1
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 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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