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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.

Satellite Launch Pad

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3366 Satellite Launch Pad

161 pieces in 68 part and color combinations, plus 1 minifigure.

The piece count includes the 4 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 34 pieces

  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×1
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 ×1
  • Plate 2 x 4 Green Part 3020 Element 302028 ×1
  • Plate 2 x 12 Light Bluish Gray Part 2445 Element 4211360 ×3
  • Plate 1 x 2 Trans-Orange Part 3023 Element 6514005 or 6240217 ×6
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×5
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×10
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×4
  • Plate 6 x 6 White Part 3958 Element 6552116 or 4144012 ×1
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1

Plates Special 16 pieces

  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
  • Plate Special 2 x 2 with Wheel Holder Black Part 4488 Element 6092658 or 448826 ×4
  • Plate Special 10 x 10 Octagonal with Hole Dark Bluish Gray Part 89523 Element 4583688 ×1
  • Plate Special 1 x 2 with Door Rail White Part 32028 Element 6550168 or 4249563 ×4
  • Bracket 1 x 2 - 2 x 2 Yellow Part 44728 Element 6117938 or 4615642 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Yellow Part 2540 Element 4140587 or 254024 ×3
  • Plate Special 1 x 2 with Clip Horizontal on End Yellow Part 63868 Element 6347284 or 4535740 ×2

Bricks Sloped 15 pieces

  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×6
  • Brick Sloped 18° 4 x 2 Light Bluish Gray Part 30363 Element 4509915 or 4211618 ×3
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box ×2
  • Brick Sloped 33° 3 x 6 No Inner Walls White Part 58181 Element 6332047 or 6023310 ×1
  • Brick Sloped 45° 2 x 4 White Part 3037 Element 6552102 or 303701 ×1

Plates Round Curved and Dishes 13 pieces

  • Dish 2 x 2 Inverted [Radar] Dark Bluish Gray Part 4740 Element 4211010 ×1
  • Dish 3 x 3 Inverted [Radar] Dark Bluish Gray Part 43898 Element 4210865 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 2 spares in the box ×6

Tiles Special 13 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×4
  • Tile Special 1 x 1 with Clip with Rounded Tips White Part 12825 Element 6030716 ×1
  • Tile Special 1 x 2 with Handle White Part 2432 Element 243201 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×7

Bricks Round and Cones 10 pieces

  • Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder Black Part 30367b Element 4158779 ×2
  • Cone 2 x 2 x 2, Open Stud Black Part 3942c Element 6092664 or 6022160 ×1
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×4
  • Brick Round 2 x 2 x 2 Robot Body, Axle Holder '+' Orientation White Part 30361c Element 4194010 or 4164092 ×2
  • Brick Round 2 x 2 x 2 with Axle Hole and Fins White Part 4591 Element 4602950 or 459101 ×1

Bricks Special 8 pieces

  • Brick Special 1 x 4 with Groove Black Part 2653 Element 265326 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Red Part 87087 Element 4558886 ×6

Panels 8 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Brown Part 87552 Element 6581810 or 6253217 ×8

Wheels and Tyres 8 pieces

  • Tyre 21 x 12 with Offset Tread Small Wide and Beveled Tread Edge Black Part 60700 Element 4514560 ×4
  • Wheel 11 x 12 with Hole Notched for Wheels Holder Pin White Part 6014b Element 4170457 ×4

Bricks 6 pieces

  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×2
  • Brick 1 x 6 Red Part 3009 Element 300921 ×3
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×1

Transportation - Land 6 pieces

  • Wheel Arch, Mudguard 4 x 2 1/2 x 2 with 2 x 2 Plate Dark Bluish Gray Part 50745 Element 4260124 ×4
  • Seat / Chair 2 x 2 with Center Sprue Mark Yellow Part 4079b Element 407924 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Yellow Part 3829c01 Element 9553 ×1

Technic Pins 4 pieces

  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×4

Bars, Ladders and Fences 3 pieces

  • Bar 6L with Stop Ring Light Bluish Gray Part 63965 Element 6170418 or 6081975 ×1
  • Bar 4L (Lightsaber Blade / Wand) White Part 30374 Element 6116602 or 4129836 ×1
  • Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×1

Hinges, Arms and Turntables 3 pieces

  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Plate Special 4 x 6 with Trap Door Hinge [Long Pins] White Part 92099 Element 4599044 ×1
  • Hinge Brick 1 x 2 Base Yellow Part 3937 Element 393724 ×1

Bricks Curved 2 pieces

  • Brick Curved 3 x 1 No Studs Dark Bluish Gray Part 50950 Element 4246896 ×2

Supports, Girders and Cranes 2 pieces

  • Support Round 1 x 1 x 6 Solid Pillar Yellow Part 43888 Element 4180814 ×2

Tiles 2 pieces

  • Tile 2 x 4 with Groove Dark Bluish Gray Part 87079 Element 4560184 ×1
  • Tile 1 x 2 with Computer Keyboard Standard Print White Part 3069bpr0030 Element 4293350 ×1

Windows and Doors 2 pieces

  • Door 1 x 3 x 1 Left Red Part 3822 Element 4288209 or 4188202 ×1
  • Door 1 x 3 x 1 Right Red Part 3821 Element 4537986 or 4288208 ×1

Flags, Banners and Signs 1 piece

  • Road Sign Clip-on 2 x 2 Square - Square with Curved Blue Lines and Small Black Squares Print Black Part 30258pr0001 Element 4609276 ×1

Minifig Accessories 1 piece

  • Equipment Cup / Mug [Plain] Red Part 3899 Element 389921 ×1

Minifig Upper Body 1 piece

  • Arm Mechanical with Clip [Thin Support] White Part 53989 Element 4622904 or 4296948 ×1

Stickers 1 piece

  • Sticker Sheet for Set 3366-1 [No Color/Any Color] Part 93285 Element 4603240 ×1

Technic Axles 1 piece

  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 3 x 6 x 2 Trans-Brown Part 92583 Element 6503220 or 6255921 ×1

Minifigures 1 figure

  • Ground Crew, Blue Jumpsuit with Orange Stripes and Pockets, Blue Cap, Glasses 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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