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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.

Lunar Rocket Launcher

Checking

6881 Lunar Rocket Launcher

93 pieces in 42 part and color combinations, plus 1 minifigure.

The 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

Blue 41 pieces

  • Brick 1 x 2 with Black Grill Print Blue Part 3004pr9981 ×2
  • Brick 1 x 4 with Bottom Tubes, Lowered Center Cross Support Blue Part 3010a ×2
  • Brick Sloped 33° 3 x 1 Blue Part 4286 Element 428623 ×2
  • Brick Sloped 45° 2 x 2 with Computer Panel Print Blue Part 3039pr9994 ×1
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Blue Part 4287a ×4
  • Brick Special 1 x 1 with Headlight Blue Part 4070 Element 407023 ×2
  • Hinge Plate 2 x 4 with Articulated Joint - Female Blue Part 3640 Element 364023 ×1
  • Hinge Plate 2 x 4 with Articulated Joint - Male Blue Part 3639 Element 363923 ×1
  • Hinge Plate 2 x 9 with Hole Close to Hinge [Complete Assembly] Blue Part 3324ac01 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×3
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×2
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×1
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×2
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×2
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Blue Part 4081b Element 6281991 or 4632567 ×4
  • Plate Special 1 x 1 with Clip Vertical [Thin Open O Clip] Blue Part 4085a ×4
  • Plate Special 1 x 4 Offset with Bar Holes Blue Part 4590 Element 4541292 or 4248164 ×3
  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1
  • Tile 1 x 8 with Groove Blue Part 4162 Element 416223 ×2

Black 26 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×4
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×4
  • Equipment Camera with Side Sight [aka Space Gun] Black Part 4360 Element 436026 ×1
  • Equipment Radio [Compact Handle] Black Part 3962a ×1
  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Black Part 4276b Element 4264363 or 4256402 ×2
  • Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Black Part 4275b Element 427526 ×2
  • Hose, Pneumatic 4mm D. 12L / 9.6cm Black Part 5102c12 Element 4529099 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Wheel Balloon with Axle hole Black Part 4288 Element 4113076 or 428876 ×8

Light Gray 9 pieces

  • Brick Round 1 x 1 with Fins, Open Stud Light Gray Part 4588 Element 4246932 or 4156667 ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Light Gray Part 3839b Element 383902 ×1
  • Plate Special 2 x 2 with Wheels Red Light Gray Part 122c01 ×4
  • Weapon Gun / Torch (Space) [with Grooves] Light Gray Part 3959 Element 4254948 or 395952 ×3

White 8 pieces

  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×3
  • Brick Round 2 x 2 x 2 with Axle Hole and Fins White Part 4591 Element 4602950 or 459101 ×2
  • Cone 2 x 2 x 2, Open Stud White Part 3942c Element 6044601 or 6022158 ×1
  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) White Part 4596 Element 6287500 or 4625000 ×2

Trans-Red 5 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×2
  • Shield Round with Stud Trans-Red Part 3876 ×1
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 ×2

Trans-Yellow 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 ×4

Minifigures 1 figure

  • Classic Spaceman, White with Airtanks (3842a 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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