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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.

Vicious Viper

Checking

8231 Vicious Viper

96 pieces in 51 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

Black 33 pieces

  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Black Part 44301a Element 4183043 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Black Part 44302a Element 4183060 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 4 x 6 Black Part 3032 Element 303226 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×4
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×1
  • Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] Black Part 60470a Element 4537901 ×1
  • Technic Axle 8 Black Part 3707 Element 370726 ×2
  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×2
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×1
  • Tyre 30.4 x 14 Offset Tread Black Part 30391 Element 4140670 or 3039126 ×4
  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Black Part 55982 Element 4517737 ×4

Lime 24 pieces

  • Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes Lime Part 88930 Element 6075049 or 4597561 ×1
  • Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges] Lime Part 61678 Element 4537927 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Lime Part 61409 Element 6370977 or 4540385 ×2
  • Brick Wedged, Curved 6 x 4 Triple Lime Part 43712 Element 4503680 ×1
  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Lime Part 45677 Element 6146900 or 6030275 ×1
  • Launcher, Air Blast Pump [Racers] Lime Part 87943 Element 4612424 ×1
  • Plate 1 x 3 Lime Part 3623 Element 4534664 or 4271564 ×2
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×2
  • Plate 1 x 6 Lime Part 3666 Element 4534665 or 4529160 ×2
  • Tile 1 x 1 with Groove Lime Part 3070b Element 4537251 1 spare in the box ×2
  • Tile 1 x 3 Lime Part 63864 Element 6185307 or 4565993 ×2
  • Tile 1 x 4 with Groove Lime Part 2431 Element 4164021 ×2
  • Wheel Arch, Mudguard 1 x 4 1/2 Lime Part 50947 Element 6073009 or 4284253 ×2
  • Wheel Arch, Mudguard, 1 1/2 x 6 x 1 [Arch Extended] Lime Part 62361 Element 6534925 or 6476017 ×2

Yellow 13 pieces

  • Brick Special 1 x 2 with Pin Yellow Part 2458 Element 245824 ×1
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×8

Dark Bluish Gray 11 pieces

  • Brick Sloped Inverted 45° 6 x 4 Double with 4 x 4 Recessed and 3 Holes Dark Bluish Gray Part 60219 Element 4549999 ×1
  • Engine / Air Scoop 2 x 2 Dark Bluish Gray Part 50943 Element 4502068 or 4278424 ×1
  • Launcher Base, Air Blast [Racers] Dark Bluish Gray Part 87941 Element 4563215 ×1
  • Launcher, Air Blast Injector [Racers] Dark Bluish Gray Part 88496 Element 4568692 ×1
  • Launcher, Air Blast Receiver [Racers] Dark Bluish Gray Part 87944 Element 4563226 ×1
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×3
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×2

Red 8 pieces

  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×2
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×2
  • Plate Special 4 x 4 with 2 x 2 Opening Red Part 64799 Element 6483941 or 4580871 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Red Part 2412b Element 241221 ×2

White 4 pieces

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium White Part 87747 Element 6270092 or 4613941 ×2
  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small White Part 53451 Element 6270106 or 4568387 1 spare in the box ×2

Trans-Yellow 2 pieces

  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 8231-1 [No Color/Any Color] Part 93969 Element 4613103 ×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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