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.

Astro Dart

Checking

1620 Astro Dart

24 pieces in 15 part and color combinations, plus 1 minifigure.

The official piece count includes the 6 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

Black 10 pieces

  • Equipment Radio [Extended Handle, Compact Speaker Grille] Black Part 3962b Element 396226 ×1
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Plate 1 x 2 with 3 Fingers On Side Black Part 2452 Element 245226 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Black Part 4590 Element 6002559 or 4278029 ×2
  • Tile Special 1 x 2 Grille without Bottom Groove Black Part 2412a ×2

White 10 pieces

  • Bracket 3 x 2 - 2 x 2 [aka Space Seat] White Part 4598 Element 6101992 or 6024078 ×1
  • Hinge Brick 1 x 2 Top Plate Thin White Part 3938 Element 393801 ×1
  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs White Part 4276b Element 4238278 or 4188547 ×2
  • Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×2
  • Tile 1 x 1 with Computer Targeting Display Print White Part 3070bpr0039 1 spare in the box ×2
  • Wedge Plate 3 x 3 Cut Corner White Part 2450 Element 6601842 or 4280148 ×2

Trans-Dark Blue 2 pieces

  • Plate 1 x 1 Trans-Dark Blue Part 3024 Element 6513965 or 6252044 ×2

Trans-Red 2 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 ×2

Minifigures 1 figure

  • Futuron Spaceman, Yellow with Airtanks and Dark Blue Visor 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.