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.

Baby Brachiosaurus

Checking

7002 Baby Brachiosaurus

31 pieces in 14 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.

Show

Piece checklist

Bricks Sloped 18 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Gray Part 3040b Element 4121970 or 4109985 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×4
  • Brick Sloped Inverted 45° 2 x 1 Light Gray Part 3665 Element 366502 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Gray Part 3660 Element 366002 ×2
  • Brick Sloped 33° 3 x 2 Sand Green Part 3298 Element 4153758 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Sand Green Part 3040b Element 6083976 or 4597014 ×2

Bricks 6 pieces

  • Brick 1 x 1 Dark Gray Part 3005 Element 4114079 or 300527 ×4
  • Brick 1 x 4 Dark Gray Part 3010 Element 4114308 or 301027 ×1
  • Brick 2 x 3 Sand Green Part 3002 Element 4642414 or 4618537 ×1

Animal / Creature Body Parts 4 pieces

  • Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section Sand Green Part 40379 Element 6603878 or 4508459 ×1
  • Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with Pin, Round Pin Hole Sand Green Part 40378 Element 4152977 ×2
  • Animal Body Part, Dinosaur, Head, Small Sand Green Part 40384 Element 4175044 or 4152982 ×1

Technic Bricks 2 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Sand Green Part 3700 Element 4153759 ×2

Plates 1 piece

  • Plate 4 x 4 Light Gray Part 3031 Element 4243813 or 303102 ×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.