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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.

Beacon Tracer

Checking

6833 Beacon Tracer

34 pieces in 20 part and color combinations, plus 1 minifigure.

The 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

Wheels and Tyres 8 pieces

  • Wheel Balloon with Axle hole Black Part 4288 Element 4113076 or 428876 ×4
  • Wheel 8 x 6 Light Gray Part 4624 Element 462402 ×4

Plates Special 7 pieces

  • Plate Special 1 x 4 Offset with Bar Holes Black Part 4590 Element 6002559 or 4278029 ×1
  • Plate Special 2 x 2 with Wheel Holders Black Part 4600 Element 460026 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Red Part 4081b Element 6281994 or 4632572 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Red Part 4085c Element 408521 ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Red Part 3839b Element 4286611 or 383921 ×1

Bricks Round and Cones 4 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×4

Hinges, Arms and Turntables 4 pieces

  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×2
  • Hinge Brick 1 x 2 Base Red Part 3937 Element 393721 ×2

Plates 2 pieces

  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×1

Plates Round Curved and Dishes 2 pieces

  • Dish 2 x 2 Inverted [Radar] Trans-Neon Green Part 4740 Element 6245297 or 4112517 ×2

Bars, Ladders and Fences 1 piece

  • Antenna 8H Whip Trans-Neon Green Part 2569 Element 6265159 or 6164380 ×1

Bricks Sloped 1 piece

  • Brick Sloped 45° 2 x 2 with Yellow Grill Print Black Part 3039pr0010 ×1

Bricks Special 1 piece

  • Bracket 8 x 2 x 1 1/3 Red Part 4732 Element 473221 ×1

Minifig Accessories 1 piece

  • Equipment Radio [Extended Handle, Compact Speaker Grille] Black Part 3962b Element 396226 ×1

Panels 1 piece

  • Panel 3 x 2 x 6 with MTron Logo Print Trans-Neon Green Part 2466pr0002 ×1

Tiles 1 piece

  • Tile 1 x 2 with Red and Yellow Control Panel Print (Original) White Part 3069bpr0048 Element 4264367 or 81515 ×1

Tiles Special 1 piece

  • Tile Special 1 x 2 Grille without Bottom Groove Black Part 2412a ×1

Minifigures 1 figure

  • M:Tron 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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