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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.

Supernova

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7712 Supernova

283 pieces in 100 part and color combinations, plus 1 minifigure.

The piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. 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 63 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Black Part 2436 Element 4282746 or 243626 ×2
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Black Part 3747b Element 4500458 or 374726 ×1
  • Hinge Brick 2 x 2 Top Plate Thin Black Part 6134 Element 4124096 or 613426 ×2
  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Black Part 30552 Element 4158848 ×1
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×6
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Black Part 44302a Element 4183060 ×1
  • Plate 1 x 1 Black Part 3024 Element 302426 ×4
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×6
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×2
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×1
  • Support 1 x 1 x 5 1/3 Spiral Staircase Axle Black Part 40244 Element 4155558 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle 8 Black Part 3707 Element 370726 ×2
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×1
  • Technic Axle and Pin Connector Perpendicular Double Split Black Part 41678 Element 4162857 ×1
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×3
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×7
  • Technic Brick Special 2 x 2 with Pin Hole, with 2 Rotation Joint Sockets Black Part 48172 Element 6296186 or 4275826 ×1
  • 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 Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×4
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Wedge Plate 3 x 6 Cut Corners Black Part 2419 Element 241926 ×2

Yellow 59 pieces

  • Bracket 1 x 2 - 2 x 2 Yellow Part 44728 Element 6117938 or 4615642 ×4
  • Brick Curved 2 x 2 with Lip, No Studs Yellow Part 30602 Element 6409627 or 4144412 ×3
  • Brick Curved 3 x 1 No Studs Yellow Part 50950 Element 4247771 ×8
  • Brick Curved 6 x 1 Yellow Part 42022 Element 4160392 ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Yellow Part 4287b ×2
  • Brick Wedged, Curved 4 x 4 No Top Studs Yellow Part 47753 Element 4639061 or 4294741 ×4
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Yellow Part 41748 Element 4271087 or 4248767 ×2
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Yellow Part 41747 Element 4271084 or 4248764 ×2
  • Brick Wedged, Curved 6 x 4 Triple Yellow Part 43712 Element 6097645 or 4180483 ×4
  • Hinge Plate 1 x 8 Locking with Angled Side Extensions, Rounded Plate Underside, 9 Teeth Yellow Part 30407 Element 4626523 or 4294480 ×6
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Yellow Part 2444 Element 244424 ×2
  • Technic Axle Connector with Axle Hole Yellow Part 32039 Element 4107800 or 3203924 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Yellow Part 32015 Element 4521998 or 4107068 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Yellow Part 32000 Element 4201615 or 4160860 ×4
  • Technic Brick 1 x 6 [5 Pin Holes] Yellow Part 3894 Element 389424 ×2
  • Technic Plate 2 x 4 [3 Holes] Yellow Part 3709 Element 370924 ×2
  • Technic Plate 2 x 6 [5 Holes] Yellow Part 32001 Element 6038194 or 4107750 ×2
  • Technic Plate 2 x 8 [7 Holes] Yellow Part 3738 Element 4624216 or 373824 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×2
  • Wedge Plate 2 x 4 Yellow Part 51739 Element 4260192 ×1

Red 45 pieces

  • Brick Curved 6 x 1 Red Part 42022 Element 4160390 ×2
  • Cone 1 x 1 [No Top Groove] Red Part 4589 Element 458921 Also in Trans-Red ×3
  • Large Figure Weapon Sword, Vladek (Series 1) Red Part 47461 Element 4220675 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Red Part 2540 Element 4140585 or 254021 ×2
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×4
  • Technic Axle Connector Ridged [with x Hole x Orientation] Red Part 6538b Element 4125189 ×4
  • Technic Axle Connector with Axle Hole Red Part 32039 Element 4118897 ×1
  • Technic Beam 1 x 4 Thin with Stud Connector Red Part 2825 Element 6392956 or 4227649 ×2
  • Technic Brick 1 x 1 with Pin Hole Red Part 6541 Element 654121 ×4
  • Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Red Part 47455 Element 4298041 or 4220519 ×10
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Red Part 2412b Element 241221 ×10

Dark Bluish Gray 44 pieces

  • Bar 1L with Clip Dark Bluish Gray Part 48729a Element 4222196 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×2
  • Brick Wedged, Angled 4 x 2 Left Dark Bluish Gray Part 41768 Element 4287973 or 4242124 ×1
  • Brick Wedged, Angled 4 x 2 Right Dark Bluish Gray Part 41767 Element 4287972 or 4242123 ×1
  • Engine - Smooth, Small 1 x 2 Side Plate [With Axle Holders] Dark Bluish Gray Part 3475b Element 4211084 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Dark Bluish Gray Part 44301a Element 4210883 ×2
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×4
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×7
  • Technic Axle 3 with Stud Dark Bluish Gray Part 6587 Element 6587199 or 6129590 ×6
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Dark Bluish Gray Part 32064b ×2
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top] Dark Bluish Gray Part 48170 Element 6279898 or 4227395 ×4
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top], Rotation Joint Socket Dark Bluish Gray Part 47452 Element 6021206 or 4636472 ×2
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket Dark Bluish Gray Part 48169 Element 6278974 or 4225973 ×2
  • Technic Brick Special 2 x 3 with Pin Holes, Rotation Joint Ball Half [Vertical Side], Rotation Joint Socket Dark Bluish Gray Part 47432 Element 4235573 ×4

Light Bluish Gray 28 pieces

  • Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×2
  • Hinge Brick 2 x 2 Top Plate Thin Light Bluish Gray Part 6134 Element 4211881 ×1
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Light Bluish Gray Part 44302a Element 4211804 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Light Bluish Gray Part 2540 Element 4211632 ×4
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×2
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×1
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×1
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×6
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×4
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×1

White 18 pieces

  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×12
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips White Part 2555 Element 255501 ×2

Trans-Red 9 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 Also in Red ×9

Pearl Light Gray 8 pieces

  • Arm Mechanical with Clip [Thin Support] Pearl Light Gray Part 53989 Element 4494600 or 4288114 ×8

Blue 4 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4

Trans-Clear 2 pieces

  • Cable, Fiber Optics, Wide 24L / 19.2cm Trans-Clear Part 40002c24 Element 4143325 ×1
  • Light Brick 2 x 4 [Red LED] Trans-Clear Part 54605 Element 4283931 ×1

Trans-Brown 1 piece

  • Windscreen 6 x 4 x 2 Wedge Curved Trans-Brown Part 41883 Element 4286384 or 4163015 ×1

Trans-Neon Green 1 piece

  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 7712-1 [No Color/Any Color] Part 56741 Element 4294979 ×1

Minifigures 1 figure

  • Takeshi 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

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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.

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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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