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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.

Trevi Fountain

Checking

21020 Trevi Fountain

731 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 225 pieces

  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×2
  • Plate 4 x 6 Black Part 3032 Element 303226 ×3
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×14
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box Also in White ×24
  • Plate 1 x 1 Trans-Light Blue Part 3024 Element 6513964 or 6252043 1 spare in the box ×28
  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×97
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box Also in Trans-Clear ×14
  • Plate 1 x 12 White Part 60479 Element 6552130 or 6548269 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×6
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×6
  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×7
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×10
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×4
  • Plate 4 x 12 White Part 3029 Element 4168072 or 302901 ×4

Bricks 159 pieces

  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×12
  • Brick 1 x 12 Light Bluish Gray Part 6112 Element 4211522 ×2
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×4
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×2
  • Brick 1 x 8 Light Bluish Gray Part 3008 Element 4211392 ×1
  • Brick 1 x 1 Trans-Clear Part 3005 Element 6514207 or 6220959 Also in White ×18
  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×6
  • Brick 1 x 1 Trans-Light Blue Part 3005 Element 6514210 or 6240551 ×34
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 Also in Trans-Clear ×40
  • Brick 1 x 1 x 5 with Solid Stud White Part 2453b Element 6550132 or 245301 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×7
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges White Part 2454a ×4
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×6
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×7
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×6
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×6

Plates Special 95 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 15573 Element 6066097 or 4211451 ×4
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×2
  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] White Part 60897 Element 6330191 or 4613256 ×10
  • Plate Special 1 x 2 Side Handle [Free Ends] White Part 2540 Element 4140583 or 254051 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×25
  • Plate Special 1 x 2 with Door Rail White Part 32028 Element 6550168 or 4249563 ×14
  • Plate Special 1 x 2 with Handle on End [Closed Ends] White Part 60478 Element 6552131 or 4515364 ×14
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×22

Tiles 94 pieces

  • Tile 1 x 3 Black Part 63864 Element 4558170 Also in Dark Bluish Gray ×4
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×4
  • Tile 1 x 8 with 'Trevi Fountain' Print Black Part 4162pr0035 Element 6082195 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×5
  • Tile 1 x 3 Dark Bluish Gray Part 63864 Element 4568734 Also in Black ×4
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×12
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×6
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×5
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×7
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×2
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×6
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×1
  • Tile 1 x 1 with Groove Trans-Clear Part 3070b Element 6581822 or 6254254 1 spare in the box Also in White ×12
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box Also in Trans-Clear ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×15
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×8

Bricks Sloped 55 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×28
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Light Bluish Gray Part 15571 Element 6075075 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×8
  • Brick Sloped 45° 2 x 2 Light Bluish Gray Part 3039 Element 4211410 ×4
  • Brick Sloped Inverted 45° 2 x 1 Light Bluish Gray Part 3665 Element 4211437 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×5
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×3
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×1

Plates Round Curved and Dishes 40 pieces

  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×40

Bricks Special 30 pieces

  • Brick Special 1 x 2 with Masonry Brick Profile Light Bluish Gray Part 98283 Element 6000066 ×12
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×1
  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×13
  • Brick Special 1 x 2 with Studs on 2 Sides White Part 52107 Element 6548274 or 4667575 ×4

Bricks Round and Cones 8 pieces

  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs White Part 48092 Element 6550183 or 6337627 ×2
  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×6

Bricks Curved 5 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Light Bluish Gray Part 11477 Element 6028813 ×2
  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside White Part 3307 Element 330701 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×2

Bars, Ladders and Fences 4 pieces

  • Bar 6L with Stop Ring White Part 63965 Element 6170419 or 6081986 ×2
  • Fence Lattice 1 x 4 x 1 White Part 3633 Element 4550171 or 363301 ×2

Minifig Upper Body 4 pieces

  • Arm Skeleton Bent with Clips at 90° [Vertical Grip] White Part 93061 Element 6252200 or 6146060 1 spare in the box ×4

Supports, Girders and Cranes 4 pieces

  • Support Round 1 x 1 x 6 Solid Pillar White Part 43888 Element 6615531 or 6073345 ×4

Minifigs 3 pieces

  • Microfig [Plain] White Part 85863 Element 4552453 ×3

Tiles Special 2 pieces

  • Tile Special 1 x 1 with Clip with Rounded Tips White Part 12825 Element 6030716 ×2

Minifig Shields, Weapons, & Tools 1 piece

  • Shield Triangular White Part 3846 Element 6585187 or 6073416 ×1

Panels 1 piece

  • Panel 1 x 6 x 5 White Part 59349 Element 6550180 or 4504228 ×1

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×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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