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.

Crater Crawler

Checking

6826 Crater Crawler

27 pieces in 17 part and color combinations, plus 1 minifigure.

The official 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

Black 12 pieces

  • Brick Special 1 x 2 x 2/3 with Studs on Sides Black Part 4595 Element 6681661 or 4523339 ×1
  • Cone 1 x 1 [No Top Groove] Black Part 4589 Element 4518219 or 458926 ×2
  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Wheel Balloon with Axle hole Black Part 4288 Element 4113076 or 428876 ×4

Light Gray 12 pieces

  • Antenna 1 x 4 with Rounded Top Light Gray Part 3957a Element 395702 ×1
  • Bracket 3 x 2 - 2 x 2 [aka Space Seat] Light Gray Part 4598 Element 4107108 or 459802 ×1
  • Bracket 8 x 2 x 1 1/3 Light Gray Part 4732 ×1
  • Brick Special 1 x 1 with Headlight Light Gray Part 4070 Element 407002 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Gray Part 3794a Element 379402 ×2
  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) Light Gray Part 4596 Element 4188363 or 459602 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Light Gray Part 4590 Element 4248161 or 4114067 ×2
  • Plate Special 2 x 2 with Wheels Red Light Gray Part 122c01 ×2

Trans-Red 3 pieces

  • Brick Round 1 x 1 with Fins, Open Stud Trans-Red Part 4588 Element 458841 ×1
  • Dish 2 x 2 Inverted [Radar] Trans-Red Part 4740 Element 6580377 or 6245303 ×2

Minifigures 1 figure

  • Classic Spaceman, Yellow with Airtanks (3842b Helmet) 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.