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.

LSP Window 2

Checking

2000410 LSP Window 2

147 pieces in 85 part and color combinations.

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

Bricks 39 pieces

  • Brick 1 x 4 Blue Part 3010 Element 301023 ×2
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×2
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×2
  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×2
  • Brick 2 x 4 Green Part 3001 Element 4106356 or 300128 ×2
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×2
  • Brick 1 x 2 Medium Blue Part 3004 Element 4629786 or 4179833 ×2
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×2
  • Brick 1 x 4 Reddish Brown Part 3010 Element 4211225 ×2
  • Brick 2 x 4 Reddish Brown Part 3001 Element 4211201 ×2
  • Brick 1 x 1 x 5 with Solid Stud Tan Part 2453b Element 4112980 ×4
  • Brick 2 x 8 Tan Part 3007 Element 6037398 or 4141533 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Red Part 3065 Element 6514263 or 6244905 ×2
  • Brick 1 x 1 with Simple Black Eye with White Pupil Print Yellow Part 3005pr0003 Element 4569076 ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×2
  • Brick 2 x 2 with Eye with White Print on Two Sides, White Circle in Pupil, Offset Yellow Part 3003pr0001 Element 4569077 ×1
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×2

Bricks Sloped 15 pieces

  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Dark Bluish Gray Part 4287b ×2
  • Brick Sloped Inverted 45° 6 x 4 Double with 4 x 4 Recessed and 3 Holes Dark Bluish Gray Part 60219 Element 4549999 ×1
  • Brick Sloped 33° 3 x 2 Orange Part 3298 Element 4121742 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Orange Part 3040b Element 4121967 or 4118901 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Orange Part 3747b Element 4500468 ×1
  • Brick Sloped 45° 2 x 2 Trans-Clear Part 3039 Element 6514100 or 6244886 ×2
  • Brick Sloped 45° 2 x 2 Trans-Dark Blue Part 3039 Element 6514101 or 6244887 ×2
  • Brick Sloped 33° 3 x 1 White Part 4286 Element 6632142 or 428601 ×2

Plates 13 pieces

  • Plate 1 x 10 Black Part 4477 Element 447726 ×2
  • Plate 2 x 12 Blue Part 2445 Element 244523 ×1
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×1
  • Plate 2 x 4 Orange Part 3020 Element 4158355 or 4122468 ×1
  • Plate 2 x 3 Red Part 3021 Element 302121 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 4 x 6 Reddish Brown Part 3032 Element 4271874 or 4211213 ×2
  • Plate 1 x 10 Tan Part 4477 Element 4143409 or 447705 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×2

Bricks Curved 8 pieces

  • Brick Arch 1 x 6 x 3 1/3 Curved Top Black Part 6060 Element 6185955 or 6056500 ×4
  • Brick Arch 1 x 4 Light Bluish Gray Part 3659 Element 4211435 ×2
  • Brick Curved 2 x 3 Yellow Part 6215 Element 621524 ×2

Wheels and Tyres 8 pieces

  • Tyre Offset Tread with Center Band 23 x 7 Black Part 61254 Element 4541455 ×4
  • Wheel 18 x 8 with Fake Bolts and Shallow Spokes Red Part 56902 Element 4512353 ×4

Bricks Special 5 pieces

  • Brick Special 2 x 4 x 2 with Studs on Sides Black Part 2434 Element 4494850 or 4201520 ×1
  • Brick Special 1 x 2 with Pin Dark Bluish Gray Part 2458 Element 4211087 ×2
  • Brick Special 2 x 2 with Pin and Axle Hole Tan Part 6232 Element 6347700 or 4185273 ×2

Plants & Trees 5 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Bright Green Part 4727 Element 4143562 ×2
  • Plant, Bush 2 x 2 x 4 Green Part 6064 Element 6269009 or 606428 ×1
  • Plant, Flower 2 x 2 - Round [Open Stud] Trans-Dark Pink Part 4728 Element 4142898 ×2

Hinges, Arms and Turntables 4 pieces

  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×1
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×1
  • Hinge Brick 1 x 2 Top Plate Thin White Part 3938 Element 393801 ×1

Plates Special 4 pieces

  • Technic Plate 2 x 8 [7 Holes] Black Part 3738 Element 373826 ×2
  • Plate Special 1 x 2 with 4 x 4 disk at 90 degrees Dark Bluish Gray Part 30209 Element 4211112 ×1
  • Plate Special 1 x 2 with Ladder Dark Bluish Gray Part 4175 Element 6285244 or 6179567 ×1

Plates Wedged 4 pieces

  • Wedge Plate 3 x 6 Cut Corners Green Part 2419 Element 241928 ×2
  • Wedge Plate 4 x 9 without Stud Notches White Part 2413 Element 241351 or 241301 ×2

Technic Beams 4 pieces

  • Technic Beam 1 x 11.5 Double Bent Thick Blue Part 32009 Element 6271153 or 4112000 ×2
  • Technic Beam 2 x 4 L-Shape Thick Lime Part 32140 Element 6271826 or 4140345 ×2

Technic Connectors 4 pieces

  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×2
  • Technic Axle and Pin Connector Angled #6 - 90° Red Part 32014 Element 6268922 or 4189131 ×2

Technic Pins 4 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×4

Minifig Heads 3 pieces

  • Minifig Head Skeleton, Standard Skull Print White Part 3626bpr0895 Element 6008095 or 82359 ×1
  • Minifig Head, Brown Eyebrows, Thin Grin, Black Eyes with White Pupils Print Yellow Part 3626bpr0387 Element 6045809 or 4631520 ×2

Technic Gears 3 pieces

  • Technic Gear 16 Tooth Reinforced [New Style] Light Bluish Gray Part 94925 Element 4640536 ×2
  • Technic Gear 40 Tooth Light Bluish Gray Part 3649 Element 6195314 or 4285634 ×1

Transportation - Sea and Air 3 pieces

  • Engine - Smooth, Small 1 x 2 Side Plate [With Axle Holders] Black Part 3475b Element 347526 ×2
  • Propeller 4 Blade 5 Diameter with Rounded Ends, Open Hub Black Part 2479 Element 247926 ×1

Bars, Ladders and Fences 2 pieces

  • Antenna 1 x 4 with Flat Top Black Part 3957b Element 395726 ×1
  • Antenna 1 x 4 with Flat Top Trans-Neon Green Part 3957b Element 6168725 or 4114011 ×1

Bricks Round and Cones 2 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Yellow Part 3941 Element 6514285 or 6273155 ×2

Minifig Headwear 2 pieces

  • Hair Center Parting Black Part 4530 Element 4659663 or 453026 ×1
  • Hat / Cap Short Curved Peak Red Part 86035 Element 4562544 ×1

Minifig Upper Body 2 pieces

  • Torso, Blue Arms, Yellow Hands [Plain] Blue Part 973c28h01 Element 4275815 or 73837 ×1
  • Torso, White Arms, Yellow Hands [Plain] Blue Part 973c27h01 Element 4275813 ×1

Rock 2 pieces

  • Rock Arctic Globe, Bottom Trans-Light Blue Part 30342 Element 4116927 ×1
  • Rock Arctic Globe, Top Trans-Light Blue Part 30286 Element 4116926 ×1

Technic Axles 2 pieces

  • Technic Axle 12 Black Part 3708 Element 370826 ×2

Technic Bricks 2 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2

Tiles Special 2 pieces

  • Tile Special 2 x 2 with Top Pin Dark Bluish Gray Part 2460 Element 4211129 ×2

Flags, Banners and Signs 1 piece

  • Flag 4 x 1 Wavy [First Wave Right] Green Part 4495b Element 6268947 or 449528 ×1

Minifig Lower Body 1 piece

  • Hips and White Legs White Part 970c27 Element 6551364 or 4570434 ×1

Panels 1 piece

  • Panel 3 x 4 x 6 with Arched Window Black Part 30246 Element 4271754 or 3024626 ×1

Tubes and Hoses 1 piece

  • Axle Hose, Soft 12L White Part 32200 Element 4296264 or 4227522 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 2 x 4 x 2 Trans-Light Blue Part 3823 Element 6581802 or 6253682 ×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.