BlockTalk Find Your Set

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.

Xenon X-Craft

Checking

6872 Xenon X-Craft

62 pieces in 36 part and color combinations, plus 2 minifigures.

LEGO counts 74 pieces. This inventory comes from a separate parts catalog and lists 77, including the 15 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

Blue 23 pieces

  • Door 1 x 3 x 2 Left Blue Part 3189 Element 318923 ×1
  • Door 1 x 3 x 2 Right Blue Part 3188 Element 4108203 or 318823 ×1
  • Hinge Plate 1 x 2 with 2 Fingers and Solid Studs Blue Part 4276a ×2
  • Hinge Plate 1 x 2 with 3 Fingers [Solid Studs] Blue Part 4275a ×2
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×1
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×2
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×1
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×3
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] Blue Part 4081a ×4
  • Tile 1 x 2 with Arrow Long Yellow with Black Border Print Blue Part 3069bpr0023 ×2
  • Tile 1 x 2 with Space Computer Print Blue Part 3069bpr0039 ×1
  • Wedge Plate 8 x 4 Wing Right without Stud Notch Blue Part 3934a ×1
  • Wedge, Plate 8 x 4 Wing Left without Underside Stud Notch Blue Part 3933a ×1
  • Wedge, Plate 8 x 8 with 4 x 4 Cutout Blue Part 4475 ×1

Light Gray 22 pieces

  • Bracket 8 x 2 x 1 1/3 Light Gray Part 4732 ×1
  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×2
  • Brick 1 x 4 with Bottom Tubes, Lowered Center Cross Support Light Gray Part 3010a ×2
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Light Gray Part 3747a Element 4109695 ×3
  • Brick Special 1 x 1 with 3 Speakers / Loudspeakers / Space Positioning Rockets Light Gray Part 3963 Element 396302 ×2
  • Hinge Vehicle Roof Holder 1 x 4 Light Gray Part 4315 Element 431502 ×1
  • Plate 1 x 1 Light Gray Part 3024 Element 302402 ×2
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×3
  • Plate 2 x 6 Light Gray Part 3795 Element 379502 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thin Open O Clip] Light Gray Part 4085a ×2
  • Plate Special 1 x 4 Offset with Bar Holes Light Gray Part 4590 Element 4248161 or 4114067 ×1
  • Tail 4 x 2 x 2, Rocket Light Gray Part 4746 ×1
  • Tile 2 x 2 with Groove Light Gray Part 3068b Element 306802 ×1

Trans-Yellow 7 pieces

  • Antenna 1 x 4 with Rounded Top Trans-Yellow Part 3957a Element 395744 ×2
  • Cone 1 x 1 [No Top Groove] Trans-Yellow Part 4589 Element 618844 ×4
  • Windscreen 6 x 4 x 2 Canopy Trans-Yellow Part 4474 Element 4189078 or 3006644 ×1

Black 5 pieces

  • Bar 1 x 3 [Clip / Anti-Stud] Black Part 4735 Element 4141580 or 473576 ×2
  • Brick Round 2 x 2 x 2 with Axle Hole and Fins Black Part 4591 Element 459126 ×1
  • Flexible Hose 8.5L with Tabless Ends (Ends same color as Tube) Black Part 73590c01a ×2

Trans-Red 4 pieces

  • Antenna 1 x 4 with Rounded Top Trans-Red Part 3957a Element 6065498 or 4106520 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Red Part 4740 Element 6580377 or 6245303 ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 6872-1 [No Color/Any Color] Part 199540 ×1

Minifigures 2 figures

  • Classic Space Droid - Black and Grey, Hinge Base Minifigure, checked as a whole figure ×1
  • Classic Spaceman, Plain 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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy