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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.

Level One - Kits 1-3

Checking

20212 Level One - Kits 1-3

383 pieces in 117 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

Black 82 pieces

  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End) Black Part 30359b Element 4164067 ×4
  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×5
  • Brick Arch 1 x 3 x 2 Curved Top Black Part 6005 Element 4618880 or 4188168 ×2
  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×6
  • Brick Round 2 x 2 Dome Top, Hollow Stud Black Part 30367c Element 4216660 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped 65° 2 x 1 x 2 Black Part 60481 Element 4515373 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×2
  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Brick Wedged, Angled 3 x 2 Left Black Part 6565 Element 4527766 or 656526 ×1
  • Brick Wedged, Angled 3 x 2 Right Black Part 6564 Element 4526931 or 656426 ×1
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Black Part 41748 Element 4160130 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Black Part 41747 Element 4160108 ×1
  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×2
  • Equipment Magnifying Glass with Thick Frame, Solid Handle, Trans-Clear Lens Pattern Black Part 10830pat0001 Element 6012466 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×4
  • Hinge Plate 1 x 8 Locking with Angled Side Extensions, Rounded Plate Underside, 9 Teeth Black Part 30407 Element 4192456 ×2
  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×2
  • Panel 1 x 2 x 1 [Square Corners] Black Part 4865a Element 486526 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×5
  • Plate 2 x 2 Black Part 3022 Element 302226 ×3
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×12
  • Tap 1 x 1 without Hole in Spout Black Part 4599b Element 459926 ×2
  • Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole Black Part 92013 Element 4619763 ×6
  • Tile 1 x 2 with Avionics Copper, Red & Silver Controls Print Black Part 3069bpr0070 Element 6021512 or 4162982 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile Special 1 x 1 with Clip with Rounded Tips Black Part 12825 Element 6030718 ×2

Lime 72 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Lime Part 6091 Element 6411328 or 4212446 ×4
  • Brick Curved 3 x 1 No Studs Lime Part 50950 Element 4537928 ×3
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Lime Part 11153 Element 6578745 or 6033782 ×4
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Lime Part 61409 Element 6370977 or 4540385 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 ×10
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×7
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×6
  • Plate 1 x 6 Lime Part 3666 Element 4534665 or 4529160 ×2
  • Plate 1 x 8 Lime Part 3460 Element 6392872 or 4271565 ×3
  • Plate 2 x 2 Lime Part 3022 Element 4613977 or 4537937 ×1
  • Plate 4 x 4 Lime Part 3031 Element 4504850 or 4160080 ×1
  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 ×4
  • Tile 1 x 1 with Groove Lime Part 3070b Element 4537251 ×13
  • Tile 1 x 2 with Groove Lime Part 3069b Element 4500125 or 4164025 ×2
  • Tile 1 x 4 with Groove Lime Part 2431 Element 4164021 ×3
  • Tile 2 x 2 with Groove Lime Part 3068b Element 4518611 or 4184857 ×5
  • Torso MBA Level 1 Logo Print, Lime Arms, White Hands Lime Part 973c18h27pr1815 Element 4632056 or 4632050 ×2

Light Bluish Gray 71 pieces

  • Bracket 5 x 2 x 2 1/3 with Holes, Smooth Bottom Light Bluish Gray Part 6087 Element 4258455 ×2
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 ×2
  • Brick Sloped 45° 2 x 2 Double Convex Light Bluish Gray Part 3045 Element 4216250 ×4
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Light Bluish Gray Part 4287b ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Light Bluish Gray Part 44567a Element 4211814 ×2
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 ×8
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×5
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×1
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×5
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate 6 x 12 Light Bluish Gray Part 3028 Element 4211400 ×2
  • Plate 6 x 8 Light Bluish Gray Part 3036 Element 4211408 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Light Bluish Gray Part 4081b Element 6281998 or 4632575 ×4
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×1
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Light Bluish Gray Part 60478 Element 4515369 ×4
  • Plate Special 1 x 2, Top Clip [Split] Light Bluish Gray Part 92280 Element 4598526 ×4
  • Tap 1 x 1 without Hole in Spout Light Bluish Gray Part 4599b Element 4211503 ×3
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×1
  • Tile 1 x 8 with Groove Light Bluish Gray Part 4162 Element 4211481 ×1
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×12
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×2

White 40 pieces

  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×1
  • Brick Curved 1 x 4 x 1 1/3 No Studs White Part 10314 Element 6294284 or 6019727 ×2
  • Brick Round 1 x 1 Open Stud White Part 3062b Element 6619283 or 306201 ×4
  • Brick Sloped 65° 2 x 1 x 2 White Part 60481 Element 6552132 or 4515370 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×1
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×1
  • Brick Special 1 x 2 with Handle White Part 30236 Element 4140626 ×2
  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×1
  • Hat / Cap Short Curved Peak White Part 86035 Element 4567912 ×1
  • Hips and Lime Legs White Part 970c18 Element 4632069 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×7
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×1
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×1
  • Plate Round Corner 3 x 3 White Part 30357 Element 6550165 or 4550745 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] White Part 4081b Element 6281990 or 4632566 ×2
  • Plate Special 1 x 1 with Tooth White Part 49668 Element 6601935 or 4224792 ×2
  • Tail Shuttle - Small White Part 44661 Element 6253365 or 4288960 ×1
  • Wedge Plate 2 x 4 White Part 51739 Element 6552128 or 4249506 ×1
  • Wedge Plate 4 x 2 Left White Part 41770 Element 6552119 or 4161326 ×1
  • Wedge Plate 4 x 2 Right White Part 41769 Element 6552118 or 4160857 ×1

Trans-Dark Blue 30 pieces

  • Plate 1 x 1 Trans-Dark Blue Part 3024 Element 6513965 or 6252044 ×4
  • Plate 1 x 2 Trans-Dark Blue Part 3023 Element 6514004 or 6240215 ×26

Dark Purple 23 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Purple Part 54200 Element 4567509 or 4255409 ×2
  • Plate 2 x 3 Dark Purple Part 3021 Element 4225142 ×5
  • Plate Round 1 x 1 with Solid Stud Dark Purple Part 6141 Element 4566522 ×16

Metallic Silver 15 pieces

  • Antenna 1 x 4 with Rounded Top Metallic Silver Part 3957a Element 4579837 ×2
  • Cone 1 x 1 [Top Groove] Metallic Silver Part 59900 Element 6051385 or 4529351 ×6
  • Headwear Accessory Visor with Horizontal Slit Metallic Silver Part 87777 Element 6051390 or 4569374 ×1
  • Plate Round 1 x 1 with Solid Stud Metallic Silver Part 6141 Element 51809301 or 6546105 ×6

Trans-Red 15 pieces

  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 ×15

Green 13 pieces

  • Brick Round 1 x 1 Open Stud Green Part 3062b Element 306228 ×4
  • Plate 1 x 2 Green Part 3023 Element 302328 ×1
  • Plate 1 x 3 Green Part 3623 Element 4107758 or 362328 ×1
  • Plate 1 x 4 Green Part 3710 Element 371028 ×1
  • Plate 2 x 4 Green Part 3020 Element 302028 ×4
  • Tile 1 x 1 with Groove Green Part 3070b Element 4558593 or 4238528 ×1
  • Tile 1 x 2 with Groove Green Part 3069b Element 306928 ×1

Trans-Light Blue 12 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Light Blue Part 6141 Element 6514058 or 6240225 ×11
  • Windscreen 6 x 4 x 2 1/3 Bubble Canopy with Handle Trans-Light Blue Part 87752 Element 6507953 or 6254264 ×1

Dark Bluish Gray 5 pieces

  • Technic Brick Special 2 x 2 with 10.2mm Balls [Center Mold Indention] Dark Bluish Gray Part 57908 Element 4498096 ×1
  • Technic Brick Special 2 x 2 with Solid Ball and Axle Hole Dark Bluish Gray Part 57909a ×4

Yellow 2 pieces

  • Minifig Head Standard Grin Print [Blocked Open Stud] Yellow Part 3626bpr0001 Element 6020398 ×2

Flat Silver 1 piece

  • Helmet, Standard Flat Silver Part 2446 Element 4632099 ×1

Trans-Brown 1 piece

  • Brick Curved 2 x 2 with Lip, No Studs Trans-Brown Part 30602 Element 6507872 or 6171717 ×1

Trans-Neon Green 1 piece

  • Antenna 1 x 4 with Rounded Top Trans-Neon Green Part 3957a ×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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