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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.

Police Command Base

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6386 Police Command Base

381 pieces in 138 part and color combinations, plus 4 minifigures.

LEGO counts 381 pieces. This inventory comes from a separate parts catalog and lists 397, 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 98 pieces

  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 1 x 6 Black Part 3009 Element 300926 ×1
  • Brick 1 x 8 Black Part 3008 Element 300826 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×3
  • Brick 1 x 3 Red Part 3622 Element 362221 ×1
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×18
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×35
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×14
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×6
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×10
  • Brick 1 x 6 with 'POLICE' Thin Black Print White Part 3009pr0010 ×1
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×5
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×1

Plates 64 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 1 x 4 Black Part 3710 Element 371026 ×5
  • Plate 1 x 6 Black Part 3666 Element 366626 ×2
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×4
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate 6 x 10 Black Part 3033 Element 303326 ×3
  • Plate 6 x 14 Black Part 3456 Element 345626 ×1
  • Plate 6 x 16 Black Part 3027 Element 302726 ×1
  • Plate 1 x 1 Light Gray Part 3024 Element 302402 ×2
  • Plate 2 x 10 Red Part 3832 Element 383221 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×2
  • Plate 2 x 6 Red Part 3795 Element 379521 ×1
  • Plate 1 x 1 Trans-Dark Blue Part 3024 Element 6513965 or 6252044 ×8
  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 ×2
  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×3
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×6
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×6
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×2
  • Plate 4 x 10 White Part 3030 Element 6550137 or 4503008 ×1

Windows and Doors 24 pieces

  • Door 1 x 4 x 5 Right with Trans-Clear Glass Black Part 73194c01 ×1
  • Door 1 x 4 x 5 with 4 Panes, Squared Base Black Part 3861b Element 4239372 or 386126 ×2
  • Garage Roller Door Section with Handle Black Part 4219 Element 4667008 ×1
  • Garage Roller Door Section without Handle Black Part 4218 Element 4582536 ×5
  • Window 1 x 4 x 3 Black Part 3853 Element 4216388 or 4189082 ×1
  • Window 1 x 4 x 5 with Fixed Glass Black Part 4347 ×6
  • Garage Roller Door Section without Handle Trans-Clear Part 4218 Element 6510049 or 6271641 ×3
  • Glass for Window 1 x 4 x 3 [Old Style - Circular Indent] Trans-Clear Part 3855a ×1
  • Glass 2 x 3 for Hinge Car Roof 4 x 4 Sunroof with Ridges Trans-Light Blue Part 2348b Element 234842 ×2
  • Door 1 x 3 x 1 Left with Thin POLICE Print White Part 3822pr0002 ×1
  • Door 1 x 3 x 1 Right with Thin POLICE Print White Part 3821pr0002 ×1

Tiles 23 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×3
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tile 1 x 8 with Groove Red Part 4162 Element 416221 ×2
  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×1
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 ×3
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 ×2
  • Tile 1 x 2 with 'POLICE' Print White Part 3069bpr0058 ×6
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×1
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×2

Bricks Special 18 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 14 Grooved Black Part 4217 Element 6398379 or 421726 ×2
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×2
  • Brick Special 1 x 2 with Groove White Part 4216 Element 6619288 or 4264360 ×12

Hinges, Arms and Turntables 18 pieces

  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Tile 1 x 4 Black Part 4625 Element 4280138 or 462526 ×1
  • Hinge Vehicle Roof 4 x 4 Sunroof without Ledges Black Part 2349a ×1
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×4
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×4
  • Hinge Brick 1 x 2 Base Red Part 3937 Element 393721 ×2
  • Hinge Brick 1 x 2 Top Plate Thin Red Part 3938 Element 6534944 or 6078079 ×2
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×1
  • Hinge Vehicle Roof 4 x 4 Sunroof without Ledges White Part 2349a ×1
  • Hinge Vehicle Roof Holder 1 x 4 x 2 White Part 4214 Element 421401 ×1

Plates Round Curved and Dishes 17 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 ×8
  • Dish 6 x 6 Inverted, Radar / Webbed [No Anti-studs] White Part 4285a ×1

Bricks Sloped 16 pieces

  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×1
  • Brick Sloped 45° 2 x 1 with Bottom pin, with 9 Large + 3 Small White Buttons Print Black Part 3040bpr0011 Element 4251811 or 4121975 ×1
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×1
  • Brick Sloped 45° 2 x 2 with Computer Panel Print Blue Part 3039pr9994 ×1
  • Brick Sloped 33° 3 x 1 White Part 4286 Element 6632142 or 428601 ×2
  • Brick Sloped 45° 2 x 2 with Computer Screen Print White Part 3039pr0026 Element 80261 ×1
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud White Part 4460a ×4
  • Brick Sloped Inverted 45° 2 x 2 Double Convex White Part 3676 Element 6548282 or 6138740 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed White Part 4871 Element 4173943 or 487101 ×1

Plants & Trees 16 pieces

  • Plant, Flower Stem Green Part 3741 Element 6277589 or 374128 ×4
  • Plant, Flower - Small Red Part 3742 4 spares in the box ×12

Plates Special 16 pieces

  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] Black Part 4081a ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×3
  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) Black Part 4596 Element 459626 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] Blue Part 4081a ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Gray Part 3794a Element 379402 ×2
  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) Red Part 4596 Element 4113169 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Red Part 4590 Element 6302650 or 6218227 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thin U Clip] White Part 4085b Element 4542191 ×4
  • Plate Special 1 x 2 with Ladder White Part 4175 Element 6317345 or 417501 ×1

Wheels and Tyres 14 pieces

  • Plate Special 2 x 2 with Wheels White Black Part 122c02 ×2
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×4
  • Tyre 21 x 8 Offset Tread Medium Black Part 4084 ×4
  • Wheel Centre Small with Stub Axles (Pulley Wheel) Red Part 3464 Element 4180583 or 346421 ×4

Bars, Ladders and Fences 13 pieces

  • Bar 1 x 6 [Open Studs] Black Part 4873 ×2
  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×2
  • Bar 1 x 3 [Clip / Anti-Stud] Blue Part 4735 Element 473573 or 473523 ×1
  • Fence Lattice 1 x 4 x 2 Light Gray Part 3185 Element 318502 ×3
  • Fence Lattice 1 x 4 x 2 Red Part 3185 Element 318521 ×2
  • Antenna 1 x 4 with Rounded Top White Part 3957a ×1
  • Lever Small Base with Black Lever White Part 298c02 Element 73737 ×2

Bricks Round and Cones 9 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×4
  • Cone 1 x 1 [No Top Groove] Black Part 4589 Element 4518219 or 458926 ×2
  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×2
  • Cone 2 x 2 x 2, Open Stud with Horizontal Red Stripes Print White Part 3942cpr0003 Element 80406 ×1

Transportation - Land 7 pieces

  • Steering Stand 1 x 2 with Black Steering Wheel Black Part 3829c01 Element 73081 ×1
  • Seat / Chair 2 x 2 White Part 4079 ×2
  • Vehicle Base, Motorcycle Chassis, Frame 3 x 6 x 3 White Part 4480c01 ×2
  • Wheel Arch, Mudguard 2 x 4 Studded White Part 3788 Element 4289272 ×2

Minifig Accessories 6 pieces

  • Equipment Radio [Compact Handle] Black Part 3962a ×2
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Blue Part 4349 Element 4111858 ×1
  • Tap 1 x 1 with Hole in Spout Red Part 4599a ×1
  • Equipment Signal Paddle White Part 3900 Element 390001 ×1
  • Equipment Cup / Mug [Plain] Yellow Part 3899 Element 389924 ×1

Plates Wedged 6 pieces

  • Wedge Plate 3 x 4 without Stud Notches Black Part 4859 ×2
  • Wedge Plate 4 x 4 Wing Left White Part 3936 Element 4280155 or 4200492 ×2
  • Wedge Plate 4 x 4 Wing Right White Part 3935 Element 4280154 or 4200491 ×2

Transportation - Sea and Air 5 pieces

  • Plate Special 2 x 2 with Helicopter Tail Rotor Holder Black Part 3481 ×1
  • Plate Special 2 x 3 with Helicopter Rotor Holder Black Part 3462 ×1
  • Propeller 4 Blade 5 Diameter with Hole for Rotor Holder Black Part 3461 ×1
  • Brick Special 1 x 1 with 3 Speakers / Loudspeakers / Space Positioning Rockets White Part 3963 Element 4188288 or 396301 ×1
  • Propeller 2 Blade White Part 3480 ×1

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Gun / Torch (Space) [with Grooves] Red Part 3959 Element 395971 or 395921 ×2

Panels 2 pieces

  • Panel 1 x 2 x 2 [Solid Studs] Black Part 4864a Element 4113021 ×2

Tiles Round and Curved 2 pieces

  • Tile Round 2 x 2 with Film / Tape Reel Print White Part 4150pr0013 ×2

Windscreens and Fuselage 2 pieces

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

Baseplates 1 piece

  • Baseplate 32 x 32 with 9-Stud Angled Driveway / Road with White Lines Print Light Gray Part 4478pr0002 ×1

Bricks Wedged 1 piece

  • Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] White Part 4855 Element 485501 ×1

Stickers 1 piece

  • Sticker Sheet for Set 6386-1 [No Color/Any Color] Part 190805 Element 190805 ×1

Minifigures 4 figures

  • Policeman, Black Suit with Pocket and Badge, White Hat (3626a Head) Minifigure, checked as a whole figure ×1
  • Policeman, Black Jacket with Zipper and Badge, White Helmet (3842b Helmet) Minifigure, checked as a whole figure ×3

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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