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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.

Public Works Center

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6383 Public Works Center

403 pieces in 103 part and color combinations, plus 4 minifigures.

LEGO counts 421 pieces. This inventory comes from a separate parts catalog and lists 419, including the 16 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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

Bricks 143 pieces

  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×10
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×18
  • Brick 1 x 2 with White Down Arrow Print Blue Part 3004pr9975 ×1
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×5
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×6
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×1
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 1 x 6 Red Part 3009 Element 300921 ×7
  • Brick 1 x 8 Red Part 3008 Element 300821 ×3
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×20
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×13
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×31
  • Brick 1 x 3 Yellow Part 3622 Element 362224 ×3
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×10
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×1
  • Brick 1 x 8 Yellow Part 3008 Element 300824 ×1
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×6

Plates 102 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 4 x 6 Black Part 3032 Element 303226 ×2
  • Plate 4 x 8 Black Part 3035 Element 303526 ×2
  • Plate 6 x 14 Black Part 3456 Element 345626 ×1
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×6
  • Plate 1 x 1 Blue Part 3024 Element 302423 ×3
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×13
  • Plate 1 x 3 Blue Part 3623 Element 362323 ×3
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×7
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×7
  • Plate 2 x 10 Blue Part 3832 Element 383223 ×4
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×2
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 2 x 10 Red Part 3832 Element 383221 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×2
  • Plate 2 x 6 Red Part 3795 Element 379521 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×3
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×4
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×13
  • Plate 2 x 10 Yellow Part 3832 Element 383224 ×6
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×4
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×2

Windows and Doors 39 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
  • Door 1 x 4 x 5 with 4 Panes, Squared Base Red Part 3861b Element 386121 ×1
  • Garage Roller Door Section with Handle Red Part 4219 ×2
  • Garage Roller Door Section without Handle Red Part 4218 Element 6542612 or 4550172 ×16
  • Window 1 x 4 x 3 Red Part 3853 Element 385321 ×9
  • Glass for Window 1 x 4 x 3 Trans-Clear Part 3855 Element 4556520 or 4203330 ×9

Bricks Special 30 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 14 Grooved Yellow Part 4217 ×4
  • Brick Special 1 x 2 with Groove Yellow Part 4216 Element 6288087 or 421624 ×24

Bricks Sloped 20 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Blue Part 3040b Element 4121936 or 304023 ×10
  • Brick Sloped 45° 2 x 3 Blue Part 3038 Element 4580925 or 4112233 ×4
  • Brick Sloped 45° 2 x 4 Blue Part 3037 Element 4107437 or 303723 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×1
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×1

Wheels and Tyres 15 pieces

  • Plate Special 2 x 2 with Wheels Red Black Part 122c01 ×5
  • Tyre 21 x 8 Offset Tread Medium Black Part 4084 ×10

Transportation - Land 12 pieces

  • Construction Vehicle Bucket Arm, Small - 2 x 6 x 2 Black Part 3314 Element 331426 ×1
  • Vehicle Track, Train, Level Crossing Center Rail Cap Insert 2 x 14 x 2/3 Light Gray Part 812 ×3
  • Seat / Chair 2 x 2 Red Part 4079 ×1
  • Construction Vehicle Bucket Smooth 3 x 5 x 1 & 1/3 Yellow Part 3433 Element 343324 ×1
  • Seat / Chair 2 x 2 Yellow Part 4079 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Yellow Part 3829c01 Element 9553 ×2
  • Tipper Bed 4 x 6, Open Studs Yellow Part 4080 Element 408024 ×1
  • Tipper End Sloped Yellow Part 3436 Element 343624 ×2

Tiles 8 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×4
  • Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×2

Bars, Ladders and Fences 6 pieces

  • Bar 1 x 4 x 2 with Studs Black Part 4083 Element 408326 ×5
  • Antenna 1 x 4 with Rounded Top Light Gray Part 3957a Element 395702 ×1

Hinges, Arms and Turntables 6 pieces

  • Hinge Plate 2 x 4 with Articulated Joint - Female Black Part 3640 Element 364026 ×1
  • Hinge Plate 2 x 4 with Articulated Joint - Male Black Part 3639 Element 363926 ×1
  • Hinge Plate 2 x 5 with Large Hole [Complete Assembly] Black Part 3149bc01 Element 4161112 or 4106943 ×1
  • Turntable 4 x 4 Square Base with Top, Complete Assembly Black Part 3403c01 Element 4221663 or 4143677 ×1
  • Hinge Plate 2 x 9 with Hole Close to Hinge [Complete Assembly] Red Part 3324ac01 ×1
  • Brick Special 1 x 2 with Digger Bucket Arm Holder Yellow Part 3317 Element 331724 ×1

Bricks Round and Cones 5 pieces

  • Brick Round 1 x 1 Solid Stud Black Part 3062a ×2
  • Brick Round 1 x 1 Solid Stud Trans-Green Part 3062a ×1
  • Brick Round 1 x 1 Solid Stud Trans-Yellow Part 3062a ×2

Plates Special 4 pieces

  • Plate Special 1 x 2 with Ladder Black Part 4175 Element 6285241 or 6179557 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Red Part 3176 Element 4188189 or 317621 ×2

Minifig Accessories 3 pieces

  • Equipment Brush / Push Broom Brown Part 3836 Element 383625 ×1
  • Equipment Shovel [Rounded Handle End] Dark Gray Part 3837 Element 383727 ×2

Baseplates 2 pieces

  • Baseplate 32 x 32 with 9-Stud Curve and Road Print Light Gray Part 609pr0001 ×1
  • Baseplate 32 x 32 with 9-Stud Straight, 3-Lanes and Center '1' & Left '2', and White Lines Print Light Gray Part 6100pr0004 ×1

Plants & Trees 2 pieces

  • Plant, Pine Tree, Large, 4 x 4 x 6 2/3 Green Part 3471 Element 6248463 or 347128 ×2

String, Bands and Reels 2 pieces

  • String Cord Medium Thickness 50cm Black Part 7916c50 ×1
  • String Reel Winch 2 x 4 x 2 (Light Gray Drum) Red Part 73037 Element 4190523 or 4109857 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Tool Pickaxe Dark Gray Part 3841 Element 384127 ×1

Stickers 1 piece

  • Sticker Sheet for Set 6383-1 [No Color/Any Color] Part 193445c01 ×1

Supports, Girders and Cranes 1 piece

  • Crane Bucket [Complete Assembly] Yellow Part 3492c01 Element 6021197 or 4614755 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 2 x 4 x 2 Trans-Clear Part 3823 Element 6581801 or 6253681 ×1

Minifigures 4 figures

  • Man, Blue Shirt, Blue Legs, Red Hard Hat Minifigure, checked as a whole figure ×4

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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