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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.

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6391 Cargo Center

547 pieces in 133 part and color combinations, plus 5 minifigures.

LEGO counts 553 pieces. This inventory comes from a separate parts catalog and lists 567, including the 20 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.

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

Blue 208 pieces

  • Brick 1 x 1 Blue Part 3005 Element 300523 ×35
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×48
  • Brick 1 x 3 Blue Part 3622 Element 362223 ×20
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×8
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×12
  • Brick Sloped 45° 2 x 1 with Bottom pin, with White Rotary Dial Print Blue Part 3040bpr0004 ×1
  • Brick Sloped 45° 2 x 2 with Computer Screen Print Blue Part 3039pr0026 Element 4190885 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Blue Part 3660 Element 366023 ×7
  • Brick Special 1 x 14 Grooved Blue Part 4217 Element 6177962 or 4119373 ×2
  • Brick Special 1 x 2 with Groove Blue Part 4216 Element 4519910 or 4264361 ×10
  • Hinge Brick 1 x 4 [Lower] Blue Part 3831 Element 6320053 or 383123 ×2
  • Hinge Brick 1 x 4 [Upper] Blue Part 3830 Element 6392876 or 6320054 ×2
  • Plate 1 x 1 Blue Part 3024 Element 302423 ×11
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×16
  • Plate 1 x 3 Blue Part 3623 Element 362323 ×9
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×8
  • Plate 2 x 10 Blue Part 3832 Element 383223 ×5
  • Plate Special 1 x 1 with Clip Vertical [Thin Open O Clip] Blue Part 4085a ×4
  • Plate Special 1 x 8 with Door Rail Blue Part 4510 Element 6490768 or 6034892 ×4
  • Tap 1 x 1 with Hole in Spout Blue Part 4599a Element 4279385 ×2
  • Tile 1 x 1 with Groove Blue Part 3070b Element 4206330 or 307073 ×1

Black 136 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×4
  • Brick 1 x 2 Black Part 3004 Element 300426 ×6
  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick 2 x 10 Black Part 3006 Element 4617860 or 300626 ×4
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×3
  • Brick 2 x 3 Black Part 3002 Element 300226 ×10
  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×6
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×20
  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×8
  • Brick Sloped 33° 3 x 4 Black Part 3297 Element 6435854 or 329726 ×14
  • Brick Special 1 x 2 with Groove Black Part 4216 Element 6548900 or 6236255 ×4
  • Equipment Radio [Compact Handle] Black Part 3962a ×1
  • Forklift Mast and Carriage, Wide 1 x 2 Hinge Plate and Light Gray Wide Forks [Complete Assembly] Black Part 4518ac01 ×1
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Brick 1 x 4 [Lower] Black Part 3831 Element 383126 ×1
  • Hinge Brick 1 x 4 [Upper] Black Part 3830 Element 6344999 or 6011458 ×1
  • Hinge Plate 1 x 2 with 2 Fingers and Solid Studs Black Part 4276a ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×8
  • Plate 1 x 6 Black Part 3666 Element 366626 ×10
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×3
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×2
  • Plate 6 x 10 Black Part 3033 Element 303326 ×2
  • Plate 6 x 12 Black Part 3028 Element 302826 ×2
  • Plate 6 x 6 Black Part 3958 Element 395826 ×2
  • Plate Special 1 x 2 with Ladder Black Part 4175 Element 6285241 or 6179557 ×1
  • Plate Special 2 x 2 with Wheels Red Black Part 122c01 ×4
  • Propeller 2 Blade Black Part 3480 ×1
  • Propeller 4 Blade 5 Diameter with Hole for Rotor Holder Black Part 3461 ×1
  • 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

White 86 pieces

  • Bar 1 x 4 x 2 with Studs White Part 4083 Element 408301 ×11
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×3
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×1
  • Brick 2 x 2 without Inside Ridges White Part 3003a ×10
  • Brick Sloped 33° 3 x 1 White Part 4286 Element 6632142 or 428601 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×2
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin White Part 3747a Element 374701 ×1
  • Brick Sloped Inverted 45° 2 x 1 White Part 3665 Element 6552106 or 366501 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×2
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2
  • Equipment Signal Paddle White Part 3900 Element 390001 ×2
  • Hinge Vehicle Roof 4 x 4 White Part 4213 Element 4256454 or 421301 ×2
  • Hinge Vehicle Roof Holder 1 x 4 White Part 4315 Element 4214079 or 4190507 ×1
  • Hinge Vehicle Roof Holder 1 x 4 x 2 White Part 4214 Element 421401 ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×10
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×5
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×4
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] White Part 4081a ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×3
  • Plate Special 2 x 2 with Helicopter Tail Rotor Holder White Part 3481 ×1
  • Plate Special 2 x 3 with Helicopter Rotor Holder White Part 3462 ×1
  • Seat / Chair 2 x 2 White Part 4079 ×1
  • Tile 1 x 2 with Mail Envelope, Letter, Address and Red Stamp Print White Part 3069bpr0099 Element 4521848 or 80170 ×4
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×1
  • Turntable 2 x 2 Plate, Base White Part 3680 Element 368001 ×2
  • Vehicle Base 4 x 5 with Wheel Arches, 2 x 2 Opening White Part 4211 Element 4289273 or 4239391 ×1
  • Wheel Arch, Mudguard 2 x 4 [Smooth] White Part 3787 Element 4258362 or 378701 ×1

Red 55 pieces

  • Box 2 x 2 x 2 Door with Slot Red Part 4346 Element 4521851 or 434621 ×2
  • Box 2 x 2 x 2 [Solid Studs] Red Part 4345a ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×4
  • 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
  • Plant, Flower - Small Red Part 3742 ×12
  • Plate 1 x 1 Red Part 3024 Element 302421 Also in Trans-Red ×6
  • Plate 1 x 2 Red Part 3023 Element 302321 ×3
  • Plate 1 x 4 Red Part 3710 Element 371021 ×4
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate 4 x 12 Red Part 3029 Element 4514717 or 302921 ×2
  • Plate 4 x 8 Red Part 3035 Element 303521 ×1
  • Plate 6 x 12 Red Part 3028 Element 4617409 or 4288289 ×3
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thin Ring] Red Part 4081a ×2
  • Steering Stand 1 x 2 with Black Steering Wheel Red Part 3829c01 Element 9552 ×2
  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×1
  • Vehicle Base 4 x 5 with Wheel Arches, 2 x 2 Opening Red Part 4211 Element 4261132 or 421121 ×1

Yellow 17 pieces

  • Construction Vehicle Bucket 2 x 3 Curved Bottom, Hollow, with Hinge 2 Fingers Yellow Part 4626 Element 462624 ×1
  • Door 1 x 4 x 5 Left with 6 Panes Yellow Part 73313 ×2
  • Door Sliding - Type 1 Yellow Part 4511 ×2
  • Garage Roller Door Section with Handle Yellow Part 4219 ×1
  • Garage Roller Door Section without Handle Yellow Part 4218 Element 4582537 ×4
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Yellow Part 3081c01 Element 7028 ×2
  • Window 1 x 4 x 3 Yellow Part 3853 Element 4189096 or 385324 ×5

Trans-Clear 13 pieces

  • Garage Roller Door Section without Handle Trans-Clear Part 4218 Element 6510049 or 6271641 ×5
  • Glass for Window 1 x 4 x 3 [Old Style - Circular Indent] Trans-Clear Part 3855a ×5
  • Windscreen 2 x 4 x 2 Trans-Clear Part 3823 Element 6581801 or 6253681 ×1
  • Windscreen 2 x 4 x 2 Inverted Trans-Clear Part 4284 Element 4528851 or 4176943 ×1
  • Windscreen 2 x 4 x 2 Vertical Trans-Clear Part 4594 Element 6507908 or 6240532 ×1

Trans-Yellow 10 pieces

  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 ×8
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 ×2

Light Gray 7 pieces

  • Antenna 1 x 4 with Rounded Top Light Gray Part 3957a Element 395702 ×2
  • Antenna with Side Spokes Light Gray Part 3144 ×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
  • Baseplate 32 x 32 with 9-Stud Straight, 3-Lanes and Helicopter Pad Print Light Gray Part 6100pr0002 ×1
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×2

Trans-Red 7 pieces

  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 Also in Red ×5
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×2

Green 5 pieces

  • Plant, Flower Stem Green Part 3741 Element 6277589 or 374128 ×4
  • Plant, Fruit Tree Green Part 3470 Element 347028 ×1

[No Color/Any Color] 2 pieces

  • Sticker Sheet 1 for Sets 6377-1, 6391-1 [No Color/Any Color] Part 195645 ×1
  • Sticker Sheet 2 for Sets 1966-1, 6373-1, 6377-1, 6391-1 [No Color/Any Color] Part 195986 ×1

Brown 1 piece

  • Equipment Brush / Push Broom Brown Part 3836 Element 383625 ×1

Minifigures 5 figures

  • Man, Blue Overalls, Blue Cap - 3626a Head Minifigure, checked as a whole figure ×2
  • Man - White Torso with Blue/Red Stripes, Black Legs Minifigure, checked as a whole figure ×1
  • Man, White Top with Large Red Stripe and 2 Blue Stripes, Red Legs, Brown Hair (3626a Head) Minifigure, checked as a whole figure ×1
  • Man, Black Jacket with Zipper, White Helmet Minifigure, checked as a whole figure ×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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