The Workshop Sheet 10 of 21

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Mosquito

Checking

3070 Mosquito

16 pieces in 12 part and color combinations, plus 1 minifigure.

LEGO counts 20 pieces. This inventory comes from a separate parts catalog and lists 21, including the 5 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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 6 pieces

  • Brick Round 1 x 1 with Fins, Open Stud Black Part 4588 Element 6039178 or 4246931 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) Black Part 4596 Element 459626 ×2

Trans-Neon Green 4 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×2
  • Plate 1 x 2 Trans-Neon Green Part 3023 Element 6240224 or 6102038 ×1
  • Rock 2 x 2 Crystal 3 Point Trans-Neon Green Part 30213 Element 4114434 ×1

Dark Gray 3 pieces

  • Bracket 3 x 2 - 2 x 2 [aka Space Seat] Dark Gray Part 4598 Element 4112237 or 459827 ×1
  • Brick Sloped 33° 3 x 2 with Insectoid Scope Print Dark Gray Part 3298pr0035 Element 4114638 ×1
  • Plate 2 x 6 Dark Gray Part 3795 Element 379527 ×1

Trans-Neon Orange 2 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Neon Orange Part 4589 Element 4529918 or 618847 ×2

Blue 1 piece

  • Wedge Plate 3 x 4 without Stud Notches Blue Part 4859 ×1

Minifigures 1 figure

  • Professor Webb / Locust with Airtanks 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.