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.

Alien Space Ship

Checking

30070 Alien Space Ship

26 pieces in 16 part and color combinations, plus 1 minifigure.

The official piece count includes the 3 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

White 7 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×2
  • Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box ×2

Blue 4 pieces

  • Wedge Plate 4 x 2 Left Blue Part 41770 Element 6430083 or 4161330 ×2
  • Wedge Plate 4 x 2 Right Blue Part 41769 Element 6430076 or 4160867 ×2

Dark Bluish Gray 3 pieces

  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Bluish Gray Part 4081b Element 6281996 or 4632574 ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×1

Red 3 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Red Part 3794b Element 379421 ×1
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 1 spare in the box ×2

Trans-Neon Orange 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×3

Lime 2 pieces

  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Lime Part 4081b Element 6281999 or 4632576 ×2

Trans-Orange 2 pieces

  • Cone 1 x 1 [Top Groove] Trans-Orange Part 59900 Element 6514017 or 6172233 ×2

Light Bluish Gray 1 piece

  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×1

Trans-Brown 1 piece

  • Brick Curved 2 x 2 with Lip, No Studs Trans-Brown Part 30602 Element 6507872 or 6171717 ×1

Minifigures 1 figure

  • Alien 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.