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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.

Supersonic-jet

Checking

31126 Supersonic-jet

215 pieces in 94 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

Plates 60 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×2
  • Plate 1 x 8 Dark Blue Part 3460 Element 6250216 or 4186628 ×6
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 ×1
  • Plate 4 x 6 Dark Blue Part 3032 Element 6037887 or 4252314 ×1
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box ×6
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×3
  • Plate 2 x 10 Dark Bluish Gray Part 3832 Element 4210678 ×1
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×2
  • Plate 2 x 2 Corner Dark Tan Part 2420 Element 4550168 ×4
  • Plate 4 x 4 Light Bluish Gray Part 3031 Element 4243797 or 4211403 ×3
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×5
  • Plate 1 x 3 Orange Part 3623 Element 6147047 or 4513281 ×2
  • Plate 1 x 6 Orange Part 3666 Element 4173332 or 4122466 ×1
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×1
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box ×6
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×7
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×4
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×2
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×2

Tiles Special 24 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Dark Blue Part 2412b Element 6022579 or 4507076 ×1
  • Tile Special 2 x 3 Pentagonal Dark Blue Part 22385 Element 6245268 or 6185111 ×3
  • Tile 45° Cut 2 x 2 (Triangle) Orange Part 35787 Element 6346092 ×6
  • Tile Special 2 x 3 Pentagonal Orange Part 22385 Element 6371715 ×2
  • Tile 45° Cut 2 x 2 (Triangle) White Part 35787 Element 6550176 or 6217875 ×12

Bricks Curved 18 pieces

  • Brick Curved 2 x 2 x 2/3 Dark Blue Part 15068 Element 6554196 or 6061569 ×2
  • Brick Curved 2 x 2 x 2/3 Orange Part 15068 Element 6067913 ×2
  • Brick Curved 2 x 2 with Lip, No Studs Trans-Clear Part 30602 Element 6507871 or 6166113 ×2
  • Brick Curved 1 x 1 x 2/3 Double Curved Top, No Studs White Part 49307 Element 6552178 or 6550177 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×6
  • Brick Curved 2 x 2 x 2/3 White Part 15068 Element 6552147 or 6047220 ×4

Bricks Sloped 17 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Blue Part 54200 Element 4504374 or 4502092 1 spare in the box ×4
  • Brick Sloped 75° 2 x 2 x 2 Quadruple Convex Dark Blue Part 3688 Element 6153589 or 4614791 ×1
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Light Bluish Gray Part 15571 Element 6075075 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×2
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×3
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin White Part 3747b Element 4500469 ×3
  • Brick Sloped Inverted 45° 2 x 2 [Round Hollow Bottom Pin, Bar-sized Stud Holes] White Part 76959 Element 6552189 or 6366391 ×1
  • Brick Sloped Inverted 45° 6 x 1 Double with 1 x 4 Recessed White Part 52501 Element 4259937 ×1
  • Brick Sloped Inverted 45° 6 x 2 Double with 2 x 4 Recessed White Part 22889 Element 6131572 ×1

Plates Special 15 pieces

  • Bracket 1 x 2 - 1 x 2 Dark Blue Part 99781 Element 6554220 or 6350417 ×1
  • Plate Special 2 x 2 with Only 2 studs Dark Blue Part 33909 Element 6554209 or 6214810 ×2
  • Bracket 2 x 2 with 1 x 2 Vertical Studs Dark Bluish Gray Part 41682 Element 6250018 ×2
  • Plate Special 1 x 2 with 5.9mm Centre Side Towball Dark Bluish Gray Part 14417 Element 6414560 or 6338160 ×1
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×1
  • Bracket 1 x 1 - 1 x 1 Medium Blue Part 36841 Element 6248079 or 6236112 ×2
  • Bracket 1 x 2 - 1 x 2 Inverted Orange Part 99780 Element 6218368 ×1
  • Bracket 1 x 2 - 1 x 2 Tan Part 99781 Element 6249809 or 6092684 ×1
  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×2
  • Bracket 1 x 2 - 2 x 4 White Part 93274 Element 6552163 or 6158058 ×2

Bricks Special 8 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 2 x 2 with Grooves and Axle Hole Dark Bluish Gray Part 90258 Element 6236949 or 4583879 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Green Part 11211 Element 6129807 ×1
  • Bracket 3 x 2 x 1 1/3 with Bottom Stud Holder Light Bluish Gray Part 73562 Element 6347992 ×1
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2

Hinges, Arms and Turntables 8 pieces

  • Hinge Plate 3 x 4 Locking Dual 2 Finger, 7 teeth Dark Bluish Gray Part 50337 Element 6266281 ×2
  • Hinge Brick 2 x 2 Top Plate Thin Light Bluish Gray Part 6134 Element 4211881 ×2
  • Hinge Plate 1 x 4 Locking Dual 1 Finger Light Bluish Gray Part 44568 Element 6276045 or 4211840 ×2
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×2

Plates Wedged 8 pieces

  • Wedge Plate 4 x 2 Left Dark Blue Part 41770 Element 4529954 or 4247065 ×1
  • Wedge Plate 4 x 2 Right Dark Blue Part 41769 Element 4502091 or 4247066 ×1
  • Wedge Plate 8 x 3, 22° Left Dark Blue Part 50305 Element 6249596 or 4651377 ×1
  • Wedge Plate 8 x 3, 22° Right Dark Blue Part 50304 Element 6115221 or 4651373 ×1
  • Wedge Plate 8 x 8 Cut Corner Dark Blue Part 30504 Element 6351760 or 6003093 ×2
  • Wedge Plate 3 x 2 Left Orange Part 43723 Element 4180540 ×1
  • Wedge Plate 3 x 2 Right Orange Part 43722 Element 4180512 ×1

Technic Beams 7 pieces

  • Technic Beam 1 x 4 Thin Light Bluish Gray Part 32449 Element 6370947 or 6074036 ×6
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Orange Part 60483 Element 6265128 or 6057526 ×1

Technic Bricks 7 pieces

  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Black Part 32064a Element 6178922 or 4233487 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×2
  • Technic Brick 1 x 10 [9 Pin Holes] Light Bluish Gray Part 2730 Element 4211374 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×1

Technic Pins 6 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Wheels and Tyres 6 pieces

  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 ×3
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×3

Bricks Wedged 5 pieces

  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Dark Blue Part 29120 Element 6214811 ×1
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Dark Blue Part 29119 Element 6214812 ×1
  • Brick Wedged, Curved 6 x 4 Triple Dark Blue Part 43712 Element 6621863 or 6598992 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Left Dark Blue Part 43721 Element 6251250 or 4236813 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Right Dark Blue Part 43720 Element 6251251 or 4236810 ×1

Plates Round Curved and Dishes 5 pieces

  • Dish 8 x 8 Inverted [Radar], Solid Studs, Squared Anti-stud Underside Black Part 3961a Element 6371716 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Green Part 4032a Element 6035029 ×2
  • Plate Round 1 x 1 with Open Stud Light Bluish Gray Part 85861 Element 6168647 or 6124825 1 spare in the box ×2

Technic Axles 5 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×4
  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×1

Transportation - Sea and Air 4 pieces

  • Tail Shuttle Orange Part 6239 Element 6371717 or 6221689 ×4

Technic Connectors 3 pieces

  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×1

Tiles 3 pieces

  • Tile 1 x 6 with Groove Dark Blue Part 6636 Element 4252437 ×2
  • Tile 2 x 4 with Groove Orange Part 87079 Element 4648853 ×1

Energy Effects 2 pieces

  • Wave / Flame Rounded Large with Marbled Trans-Yellow Pattern Trans-Red Part 85959pat0003 Element 6513987 or 6172283 ×2

Technic Special 2 pieces

  • Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole Black Part 32124 Element 6280168 or 4114689 ×2

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 Quarter Dark Blue Part 25269 Element 6554207 or 6199890 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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