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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.

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7971 Bad

71 pieces in 45 part and color combinations.

LEGO counts 72 pieces. This inventory comes from a separate parts catalog and lists 71; 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.

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

Plates 17 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 1 x 8 Black Part 3460 Element 346026 Also in Dark Bluish Gray ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×2
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 Also in Black ×1
  • Plate 1 x 1 Orange Part 3024 Element 4524929 or 4203454 ×1
  • Plate 1 x 4 Orange Part 3710 Element 4118782 ×1
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×1
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×1

Plates Special 8 pieces

  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Bluish Gray Part 4081b Element 6281996 or 4632574 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Orange Part 3794b Element 4547035 or 4528462 ×3
  • Plate Special 1 x 1 with Tooth White Part 49668 Element 6601935 or 4224792 ×4

Wheels and Tyres 8 pieces

  • Tyre 30.4 x 14 VR Solid Black Part 58090 Element 6601610 or 4550937 ×4
  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Black Part 55982 Element 4517737 ×4

Bricks Wedged 4 pieces

  • Brick Wedged, Curved 8 x 3 x 2 Open Left Black Part 41750 Element 6271277 or 6185621 ×1
  • Brick Wedged, Curved 8 x 3 x 2 Open Right Black Part 41749 Element 6271278 or 6185619 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Left Black Part 43710 Element 6040297 or 4180413 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Right Black Part 43711 Element 6040298 or 4180423 ×1

Hinges, Arms and Turntables 4 pieces

  • 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 Side, 9 Teeth Black Part 60471 Element 4515340 ×2

Plates Wedged 4 pieces

  • Wedge Plate 3 x 2 Left Black Part 43723 Element 4180536 Also in Dark Bluish Gray ×1
  • Wedge Plate 3 x 2 Right Black Part 43722 Element 4180508 Also in Dark Bluish Gray ×1
  • Wedge Plate 3 x 2 Left Dark Bluish Gray Part 43723 Element 4210872 Also in Black ×1
  • Wedge Plate 3 x 2 Right Dark Bluish Gray Part 43722 Element 4210869 Also in Black ×1

Projectiles / Launchers 4 pieces

  • 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
  • Launcher, Air Blast Pump [Racers] Red Part 87943 Element 4568690 ×1

Technic Bushes 4 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×4

Bricks Curved 3 pieces

  • Brick Curved 3 x 1 No Studs Orange Part 50950 Element 4251969 ×2
  • Brick Curved 4 x 1 No Studs [Stud Holder with Asymmetric Ridges] Orange Part 61678 Element 4523603 ×1

Animal / Creature Body Parts 2 pieces

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

Bricks 2 pieces

  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×1

Bricks Sloped 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Orange Part 54200 Element 4504371 or 4248195 1 spare in the box ×2

Technic Axles 2 pieces

  • Technic Axle 8 Black Part 3707 Element 370726 ×2

Technic Bricks 2 pieces

  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×2

Transportation - Sea and Air 2 pieces

  • Engine Smooth Large [2 x 2 Thin Top Plate] Orange Part 4868b Element 4525190 ×2

Bricks Special 1 piece

  • Brick Special 1 x 2 with Pin Yellow Part 2458 Element 245824 ×1

Stickers 1 piece

  • Sticker Sheet for Set 7971-1 [No Color/Any Color] Part 88168 Element 4566062 ×1

Tiles 1 piece

  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×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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