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.

Worker Robot

Checking

7302 Worker Robot

25 pieces in 13 part and color combinations, plus 1 minifigure.

The piece count includes the 5 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

Plates 7 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×4
  • Plate 2 x 2 Corner Tan Part 2420 Element 4114077 or 242005 ×2
  • Plate 4 x 4 Tan Part 3031 Element 4243824 or 4113919 ×1

Hinges, Arms and Turntables 6 pieces

  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×2
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Dark Gray Part 30365 Element 4144501 or 4125291 ×2
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers On Ends, without Hole, 9 Teeth Dark Gray Part 30554a ×2

Plates Special 3 pieces

  • Plate Special 1 x 2 Side Handle [Free Ends] Brown Part 2540 Element 4140591 or 4124489 ×3

Bricks Sloped 2 pieces

  • Brick Sloped 33° 3 x 1 Dark Gray Part 4286 Element 4108045 or 428627 ×2

Plates Wedged 2 pieces

  • Wedge Plate 3 x 3 Cut Corner Brown Part 2450 Element 4256579 or 4125222 ×2

Tiles Special 2 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Tan Part 2412b Element 4124456 or 393305 ×2

Minifig Upper Body 1 piece

  • Arm Mechanical with 2 Clips [Battle Droid] Dark Turquoise Part 30377 Element 4142991 1 spare in the box ×1

Tiles 1 piece

  • Tile 1 x 2 with Elliptical Display Print Dark Gray Part 3069bpr0046 Element 4142971 ×1

Tiles Round and Curved 1 piece

  • Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×1

Minifigures 1 figure

  • Martian, Orange with Face Mask 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.