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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.

Cosmic Charger

Checking

6845 Cosmic Charger

46 pieces in 26 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.

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Piece checklist

Plates 13 pieces

  • Plate 1 x 3 Blue Part 3623 Element 362323 ×2
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×1
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×4
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×2

Hinges, Arms and Turntables 6 pieces

  • Hinge Brick 1 x 2 Base Blue Part 3937 Element 393723 ×3
  • Hinge Brick 1 x 2 Top Plate Thin Blue Part 3938 Element 4279389 or 393823 ×3

Bricks Round and Cones 5 pieces

  • Brick Round 1 x 1 with Fins, Open Stud Black Part 4588 Element 6039178 or 4246931 ×2
  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 ×3

Bars, Ladders and Fences 4 pieces

  • Lever Small Base with Light Gray Lever Blue Part 298c03 Element 73592 ×2
  • Antenna 1 x 4 with Rounded Top Trans-Red Part 3957a Element 6065498 or 4106520 ×2

Transportation - Sea and Air 4 pieces

  • Brick Special 1 x 1 with 3 Speakers / Loudspeakers / Space Positioning Rockets Black Part 3963 Element 4200791 or 396326 ×2
  • Wing, Tail 4 x 1 x 3 Blue Part 2340 Element 6254953 or 6052392 ×2

Plates Special 3 pieces

  • Bracket 3 x 2 - 2 x 2 [aka Space Seat] Blue Part 4598 Element 4657998 or 459823 ×1
  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) Blue Part 4596 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Blue Part 4590 Element 4541292 or 4248164 ×1

Bricks Special 2 pieces

  • Brick Special 1 x 2 x 2/3 with Studs on Sides Black Part 4595 Element 6681661 or 4523339 ×2

Plates Round Curved and Dishes 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×2

Tiles 2 pieces

  • Tile 1 x 2 with Arrow Long Yellow with Black Border Print Blue Part 3069bpr0023 ×2

Bricks Sloped 1 piece

  • Brick Sloped Inverted 45° 4 x 4 Double with 4 x 2 Recessed White Part 4854 Element 4643315 or 4603492 ×1

Bricks Wedged 1 piece

  • Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] White Part 4855 Element 485501 ×1

Minifig Accessories 1 piece

  • Equipment Control Panel Blue Part 2342 Element 4121919 or 234223 ×1

Plates Wedged 1 piece

  • Wedge, Plate 8 x 8 with 4 x 4 Cutout Blue Part 4475 ×1

Windows and Doors 1 piece

  • Window 4 x 4 x 3 Roof White Part 4447 Element 4522041 or 4248245 ×1

Minifigures 1 figure

  • Classic Spaceman, White 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.

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