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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.

San Francisco

Checking

21043 San Francisco

565 pieces in 163 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.

6 more look-alike pairs
  • Brick 1 x 2 Black ×1 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
  • Plate 1 x 1 Black ×10 Dark Bluish Gray ×9 Black is darker than Dark Bluish Gray.
  • Plate 1 x 6 Black ×3 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
  • Plate 2 x 2 Black ×1 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
  • Tile 1 x 4 with Groove Black ×2 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
  • Tile 1 x 6 with Groove Black ×3 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
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Piece checklist

Plates 182 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box Also in Dark Bluish Gray ×10
  • Plate 1 x 10 Black Part 4477 Element 447726 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×6
  • Plate 1 x 6 Black Part 3666 Element 366626 Also in Dark Bluish Gray ×3
  • Plate 2 x 10 Black Part 3832 Element 383226 ×3
  • Plate 2 x 2 Black Part 3022 Element 302226 Also in Dark Bluish GrayAlso in Dark Blue ×1
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 Also in Dark Blue ×5
  • Plate 2 x 3 Black Part 3021 Element 302126 Also in Dark Blue ×4
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×7
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×1
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×2
  • Plate 4 x 12 Blue Part 3029 Element 4528850 or 4166870 ×2
  • Plate 1 x 1 Bright Light Blue Part 3024 Element 6184484 or 6013803 1 spare in the box ×1
  • Plate 2 x 2 Dark Blue Part 3022 Element 6037890 or 4528982 Also in Black ×1
  • Plate 2 x 2 Corner Dark Blue Part 2420 Element 4528482 or 4252046 Also in Black ×2
  • Plate 2 x 3 Dark Blue Part 3021 Element 6554192 or 4530028 Also in Black ×1
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box Also in Black ×9
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Trans-Brown ×9
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 Also in Black ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 Also in Black ×1
  • Plate 1 x 1 Dark Green Part 3024 Element 6618077 or 6055169 1 spare in the box ×7
  • Plate 2 x 3 Dark Green Part 3021 Element 6013801 or 4650244 ×1
  • Plate 2 x 4 Dark Green Part 3020 Element 6618075 or 4586057 ×3
  • Plate 1 x 1 Dark Red Part 3024 Element 4539114 or 4183901 1 spare in the box ×14
  • Plate 1 x 12 Dark Red Part 60479 Element 6253142 or 6072621 ×3
  • Plate 1 x 3 Dark Red Part 3623 Element 4539076 or 4164223 ×2
  • Plate 1 x 4 Dark Red Part 3710 Element 4539061 or 4164219 ×3
  • Plate 1 x 6 Dark Red Part 3666 Element 4539062 or 4164108 ×2
  • Plate 1 x 8 Dark Red Part 3460 Element 4541507 or 4529027 ×1
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×3
  • Plate 1 x 10 Light Bluish Gray Part 4477 Element 4251149 or 4211495 ×4
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×18
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×1
  • Plate 1 x 1 Lime Part 3024 Element 4621557 or 4561480 1 spare in the box ×2
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×2
  • Plate 1 x 1 Reddish Brown Part 3024 Element 4221744 1 spare in the box ×6
  • Plate 1 x 10 Reddish Brown Part 4477 Element 4223683 ×2
  • Plate 1 x 3 Reddish Brown Part 3623 Element 4211152 ×2
  • Plate 2 x 10 Reddish Brown Part 3832 Element 4211214 ×2
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 1 spare in the box ×2
  • Plate 1 x 2 Trans-Brown Part 3023 Element 6514006 or 6240219 Also in Dark Bluish Gray ×2
  • Plate 1 x 1 Trans-Light Blue Part 3024 Element 6513964 or 6252043 1 spare in the box ×2
  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×10
  • Plate 1 x 1 with Black Square Print White Part 3024pr0013 Element 6202501 1 spare in the box ×5
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×3
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate 1 x 1 Yellow Part 3024 Element 302424 1 spare in the box ×3
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×2

Tiles 117 pieces

  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 Also in Dark Bluish Gray ×2
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 Also in Dark Bluish Gray ×3
  • Tile 1 x 8 with 'San Francisco' Print Black Part 4162pr0066 Element 6253221 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×1
  • Tile 1 x 4 with Solar Panels Print Dark Blue Part 2431pr0115 Element 6215341 ×1
  • Tile 2 x 2 with Groove Dark Blue Part 3068b Element 4205004 ×1
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×4
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 Also in Black ×1
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 Also in Black ×1
  • Tile 1 x 1 with Groove Dark Green Part 3070b Element 6618080 or 6055171 1 spare in the box ×9
  • Tile 1 x 3 Dark Green Part 63864 Element 6618112 or 4650622 ×1
  • Tile 1 x 2 with Groove Dark Red Part 3069b Element 4539090 or 4529548 ×2
  • Tile 1 x 3 Dark Red Part 63864 Element 4583299 ×1
  • Tile 1 x 4 with Groove Dark Red Part 2431 Element 4539060 or 4164220 ×3
  • Tile 1 x 8 with Groove Dark Red Part 4162 Element 4539083 or 4509951 ×8
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×9
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×7
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×3
  • Tile 1 x 8 with Groove Light Bluish Gray Part 4162 Element 4211481 ×2
  • Tile 2 x 2 Corner Light Bluish Gray Part 14719 Element 6065824 ×2
  • Tile 1 x 1 with Groove Medium Nougat Part 3070b Element 6177146 1 spare in the box ×3
  • Tile 1 x 1 with Groove Reddish Brown Part 3070b Element 4211288 1 spare in the box ×6
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×1
  • Tile 1 x 4 with Groove Tan Part 2431 Element 4550324 or 4542398 ×4
  • Tile 1 x 1 with Groove Trans-Light Blue Part 3070b Element 6514261 or 6254256 1 spare in the box ×7
  • Tile 1 x 2 with Groove Trans-Light Blue Part 3069b Element 6514224 or 6251295 ×30
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×1
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×2
  • Tile 2 x 3 White Part 26603 Element 6552162 or 6550161 ×1

Tiles Special 42 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×3
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Red Part 15712 Element 6360079 or 6071222 ×3
  • Tile Special 1 x 2 Grille with Bottom Groove Reddish Brown Part 2412b Element 4224243 ×28
  • Tile Special 1 x 1 with Clip with Rounded Edges White Part 15712 Element 6348055 or 6054551 ×6
  • Tile Special 1 x 3 Inverted with Center Hole White Part 35459 Element 6548289 or 6223491 ×2

Plates Special 40 pieces

  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Black Part 60897 Element 6330189 or 4617547 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 Also in Dark Blue ×2
  • Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) Black Part 34103 Element 6199908 ×4
  • Plate Special 2 x 6 x 2/3 with 4 Studs on Side, 1 Support Wall on Bottom Black Part 87609 Element 4653049 ×6
  • Plate Special 4 x 4 with 2 x 2 Opening Black Part 64799 Element 6058118 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Blue Part 15573 Element 6554197 or 6092588 Also in Black ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Dark Red Part 61252 Element 6360110 or 6253170 ×4
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Red Part 4081b Element 6282000 or 6131833 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Red Part 15573 Element 6092597 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 15573 Element 6066097 or 4211451 ×2
  • Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 34103 Element 6211969 ×1
  • Plate Special 3 x 2 with Rounded End, Hole Light Bluish Gray Part 3176 Element 4211419 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Reddish Brown Part 60897 Element 6337003 or 6066142 ×3
  • Plate Special 1 x 2 [Side Handle Closed Ends] White Part 48336 Element 6552125 or 4222017 ×2
  • Plate Special 1 x 2 with Angular Extension and Flexible White Tip White Part 61406pat0009 Element 6601429 or 6438921 ×2
  • Plate Special 1 x 2 with Door Rail Yellow Part 32028 Element 4141630 ×1

Bricks Special 38 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×4
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Dark Bluish Gray Part 32952 Element 6228923 ×1
  • Brick Special 1 x 1 Studs on 4 Sides Light Bluish Gray Part 4733 Element 4211511 ×2
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×3
  • Brick Special 1 x 1 with Studs on 2 Sides Light Bluish Gray Part 47905 Element 4213567 ×6
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×1
  • Brick Special 1 x 2 with Studs on 2 Sides Light Bluish Gray Part 52107 Element 4657459 ×6
  • Brick Special 1 x 1 with Studs on 2 Sides Reddish Brown Part 47905 Element 6253167 or 4645102 ×8
  • Brick Special 1 x 1 with Studs on 2 Sides Tan Part 47905 Element 4213568 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Tan Part 11211 Element 6024495 ×1
  • Brick Special 1 x 1 with Handle White Part 2921 Element 6615537 or 6170567 ×1
  • Brick Special 1 x 1 with Stud on 1 Side Yellow Part 87087 Element 4624985 ×1

Bricks Sloped 36 pieces

  • Brick Sloped Double 45° 1 x 1 Bright Light Blue Part 35464 Element 6228085 1 spare in the box ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Green Part 54200 Element 6618111 or 4504375 2 spares in the box ×17
  • Brick Sloped 65° 2 x 1 x 2 Dark Green Part 60481 Element 6003331 ×2
  • 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 ×3
  • Brick Sloped Double 45° 1 x 1 Tan Part 35464 Element 6230284 1 spare in the box ×3
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Light Blue Part 54200 Element 6245277 or 6073445 1 spare in the box ×5
  • Brick Sloped 33° 2 x 2 Double White Part 3300 Element 4578606 or 330001 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Yellow Part 61409 Element 4540384 or 4521167 ×1

Bricks Curved 32 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Bluish Gray Part 11477 Element 6029948 ×1
  • Brick Curved 3 x 1 No Studs Dark Bluish Gray Part 50950 Element 4246896 ×1
  • Brick Curved 4 x 1 Double, No Studs Dark Bluish Gray Part 93273 Element 4648256 ×1
  • Brick Arch 1 x 4 Dark Red Part 3659 Element 6146854 or 4541582 ×1
  • Brick Curved 1 x 2 x 1 No Studs Light Bluish Gray Part 37352 Element 6227184 ×24
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Light Bluish Gray Part 11477 Element 6028813 ×2
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Light Bluish Gray Part 11153 Element 6578746 or 6042950 ×2

Bricks 28 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 Also in Dark Bluish Gray ×1
  • Brick 1 x 3 Black Part 3622 Element 362226 ×1
  • Brick 1 x 4 Black Part 3010 Element 301026 ×2
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 Also in Black ×1
  • Brick 1 x 2 Dark Green Part 3004 Element 6618072 or 4245570 ×2
  • Brick 1 x 4 Dark Green Part 3010 Element 6618074 or 4245571 ×1
  • Brick 2 x 2 Dark Green Part 3003 Element 6214611 or 4271436 ×2
  • Brick 2 x 4 Dark Green Part 3001 Element 4260493 ×2
  • Brick 1 x 1 Dark Red Part 3005 Element 4541376 or 4209383 ×2
  • Brick 1 x 3 Reddish Brown Part 3622 Element 4245312 or 4211220 ×4
  • Brick 1 x 1 Trans-Clear Part 3005 Element 6514207 or 6220959 Also in White ×2
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 Also in Trans-Clear ×1
  • Brick 1 x 2 with 3 Rows of 8 Black Squares Print White Part 3004pr0044 Element 6253517 ×5

Tiles Round and Curved 16 pieces

  • Tile Round 1 x 1 Light Bluish Gray Part 98138 Element 6284071 or 4650260 1 spare in the box ×2
  • Tile Round 1 x 1 Quarter Light Bluish Gray Part 25269 Element 6176433 1 spare in the box ×13
  • Tile Round 1 x 1 White Part 98138 Element 6564903 or 6284572 1 spare in the box ×1

Plates Round Curved and Dishes 13 pieces

  • Plate Round 1 x 1 with Open Stud Dark Red Part 85861 Element 6168645 or 6073031 1 spare in the box ×9
  • Plate Round 1 x 1 with Open Stud Light Bluish Gray Part 85861 Element 6168647 or 6124825 1 spare in the box ×4

Plates Wedged 10 pieces

  • Wedge Plate 2 x 2 Cut Corner Dark Bluish Gray Part 26601 Element 6164073 ×1
  • Wedge Plate 2 x 2 Right Dark Bluish Gray Part 24307 Element 6143417 ×1
  • Wedge Plate 4 x 2 Left Dark Bluish Gray Part 41770 Element 4210788 ×1
  • Wedge Plate 4 x 2 Right Dark Bluish Gray Part 41769 Element 4210782 ×2
  • Wedge Plate 3 x 2 Left Light Bluish Gray Part 43723 Element 4211794 ×1
  • Wedge Plate 3 x 2 Right Light Bluish Gray Part 43722 Element 4211791 ×2
  • Wedge Plate 2 x 2 Cut Corner Reddish Brown Part 26601 Element 6218366 ×2

Bars, Ladders and Fences 3 pieces

  • Bar Holder with Hole and Bar Handle Dark Red Part 23443 Element 6337283 or 6253169 ×2
  • Bar 4L (Lightsaber Blade / Wand) Yellow Part 30374 Element 6116606 or 4193511 ×1

Tubes and Hoses 3 pieces

  • Hose Rigid 3mm D. 14L / 11.2cm Dark Red Part 75c14 Element 6256144 ×1
  • Hose Rigid 3mm D. 26L / 20.8cm Dark Red Part 75c26 Element 6256145 ×1
  • Hose Rigid 3mm D. 8L / 6.4cm Dark Red Part 75c08 Element 6256143 ×1

Bricks Round and Cones 2 pieces

  • Brick Round 1 x 1 Open Stud White Part 3062b Element 6619283 or 306201 ×2

Plants & Trees 2 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals White Part 24866 Element 6206149 1 spare in the box ×2

Minifig Accessories 1 piece

  • Lipstick [Plain] White Part 93094 Element 6528716 or 6189137 1 spare in the box ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

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