Free tool

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.

Crab

Checking

6140 Crab

74 pieces in 34 part and color combinations, plus 1 minifigure.

The official 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.

Show

Piece checklist

Hinges, Arms and Turntables 20 pieces

  • Arm Grab Jaw Black Part 4221 Element 422126 ×4
  • Arm Grab Jaw Holder, 3 Fingers Black Part 4220 Element 4107529 or 422026 ×1
  • Arm Holder Brick 1 x 2 with 2 Horizontal Fingers Black Part 30014 Element 3001426 ×4
  • Arm Piece Straight with 2 and 3 Fingers Brown Part 3612 Element 4110030 or 4108119 ×2
  • Arm Piece with Pin, 3 Fingers Red Part 6217 Element 4110029 ×3
  • Arm Piece 90° Turn [2 / 3 Fingers] Trans-Neon Green Part 412 Element 4109994 ×6

Plates 14 pieces

  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 1 x 2 Brown Part 3023 Element 302325 ×4
  • Plate 2 x 6 Dark Gray Part 3795 Element 379527 ×1
  • Plate 4 x 8 Dark Gray Part 3035 Element 4110027 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×2
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1

Bricks Sloped 8 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Gray Part 3040b Element 4121970 or 4109985 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Gray Part 3660 Element 366027 ×2

Plates Special 5 pieces

  • Plate Special 1 x 4 Offset with Bar Holes Black Part 4590 Element 6002559 or 4278029 ×4
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Red Part 4623 Element 462321 ×1

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×4

Transportation - Sea and Air 4 pieces

  • Cockpit 6 x 6 x 3 1/3 Octagonal Canopy Base Black Part 30200 Element 4124388 or 4109932 ×1
  • Propeller 3 Blade 3 Diameter with Axle Cross Black Part 6041 Element 604126 ×3

Bricks 3 pieces

  • Brick 1 x 2 Brown Part 3004 Element 300425 ×3

Minifig Accessories 3 pieces

  • Equipment Grab Jaw Holder Dark Gray Part 30198 Element 4109931 ×1
  • Minifig Footwear Flipper [Thin] Light Gray Part 59275 ×2

Bars, Ladders and Fences 2 pieces

  • Bar 1 x 3 [Clip / Anti-Stud] Black Part 4735 Element 4141580 or 473576 ×2

Bricks Round and Cones 2 pieces

  • Brick Round Corner 2 x 2 Macaroni with Stud Notch Dark Gray Part 3063b Element 4110028 or 306327 ×2

Containers 2 pieces

  • Box 2 x 2 x 2 Door with Slot and Stingray Mechanical Print Trans-Neon Green Part 4346pr0018 Element 4109936 ×1
  • Box 2 x 2 x 2 [Hollow Studs] Trans-Neon Green Part 4345b Element 4291632 or 4107506 ×1

Plates Wedged 2 pieces

  • Wedge Plate 3 x 6 Cut Corners Dark Gray Part 2419 Element 241927 ×2

Tiles 2 pieces

  • Tile 2 x 2 with Aquazone Silver and Copper Circular Print Black Part 3068bpr9881 Element 4113930 ×1
  • Tile 2 x 2 with Groove Light Gray Part 3068b Element 306802 ×1

Plants & Trees 1 piece

  • Plant, Bush 2 x 2 x 4 Red Part 6064 Element 4110017 ×1

Rock 1 piece

  • Rock 1 x 1 Crystal 5 Point Chrome Silver Part 30385 Element 4119342 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 6 x 6 Octagonal Canopy with Axle hole and Stingray Print Trans-Neon Green Part 2418bpr0003 Element 4109956 ×1

Minifigures 1 figure

  • Stingray 3 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

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.