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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.

Maersk Line Container Lorry

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1831 Maersk Line Container Lorry

201 pieces in 77 part and color combinations, plus 1 minifigure.

LEGO counts 211 pieces. This inventory comes from a separate parts catalog and lists 205, including the 4 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

Plates 55 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 12 Black Part 2445 Element 244526 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate 4 x 12 Black Part 3029 Element 302926 ×1
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×8
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×4
  • Plate 2 x 10 Light Gray Part 3832 Element 383202 ×2
  • Plate 4 x 4 Light Gray Part 3031 Element 4243813 or 303102 ×1
  • Plate 2 x 3 Maersk Blue Part 3021 ×1
  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×6
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×8
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 4 x 12 White Part 3029 Element 4168072 or 302901 ×2
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×7

Plates Special 21 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×3
  • Plate Special 2 x 2 with Wheel Holders Black Part 4600 Element 460026 ×5
  • Plate Special 2 x 5 with Towball Socket Black Part 3491 ×1
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×1
  • Technic Plate 2 x 8 [7 Holes] Light Gray Part 3738 Element 373802 ×2
  • Bracket 1 x 2 - 1 x 4 [Square Corners] White Part 2436 Element 4282737 or 4159314 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×6

Wheels and Tyres 21 pieces

  • Tyre 21 x 12 with Offset Tread Small Wide Black Part 6015 Element 601526 ×10
  • Wheel Skateboard / Trolley Black Part 2496 Element 6223673 or 4569104 ×1
  • Wheel 11 x 12 with Hole Round for Wheels Holder Pin White Part 6014a Element 601401 ×10

Bricks 17 pieces

  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×1
  • Brick 1 x 2 Maersk Blue Part 3004 ×5
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×3
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×6

Tiles 17 pieces

  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×1
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tile 1 x 4 with Groove Light Gray Part 2431 Element 243102 ×2
  • Tile 1 x 8 with Groove Light Gray Part 4162 Element 416202 ×6
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 1 spare in the box ×4
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×3

Windows and Doors 13 pieces

  • Door 1 x 3 x 1 Left Maersk Blue Part 3822 ×1
  • Door 1 x 3 x 1 Right Maersk Blue Part 3821 ×1
  • Glass 2 x 3 for Hinge Car Roof 4 x 4 Sunroof with Ridges Trans-Dark Blue Part 2348b Element 234843 ×1
  • Glass for Window 1 x 2 x 2 Plane Trans-Light Blue Part 4862 Element 486242 ×2
  • Door 1 x 2 x 3 with Vertical Handle White Part 6546 Element 654651 or 654601 ×4
  • Window 1 x 2 x 2 Plane, Solid Studs White Part 2377 Element 4194517 or 237701 ×2
  • Window 1 x 4 x 3 Train with Shutter Holes and Solid Studs on Ends White Part 6556 Element 4561803 or 4496377 ×2

Panels 12 pieces

  • Panel 1 x 2 x 3 [Hollow Studs] White Part 2362b Element 4113022 or 236201 ×4
  • Panel 1 x 4 x 3 [Hollow Studs] White Part 4215b ×8

Bricks Round and Cones 10 pieces

  • Brick Round 1 x 1 Open Stud Light Gray Part 3062b Element 306202 ×8
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×2

Plates Round Curved and Dishes 6 pieces

  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Gray Part 2654 Element 265402 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×5

Tiles Special 6 pieces

  • Tile Special 2 x 2 with Top Pin Light Gray Part 2460 Element 246002 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×4

Bricks Sloped 4 pieces

  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Light Gray Part 4287a Element 428702 ×2
  • Brick Sloped Inverted 45° 2 x 1 White Part 3665 Element 6552106 or 366501 ×2

Hinges, Arms and Turntables 4 pieces

  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Light Gray Part 4276b Element 427602 ×1
  • Hinge Plate 1 x 2 with 3 Fingers On Side Light Gray Part 2452 Element 4238280 or 245202 ×1
  • Hinge Vehicle Roof 4 x 4 Sunroof with Ledges White Part 2349b Element 4177755 or 234901 ×1
  • Hinge Vehicle Roof Holder 1 x 4 x 2 White Part 4214 Element 421401 ×1

Minifig Accessories 4 pieces

  • Equipment Brush / Push Broom Brown Part 3836 Element 383625 ×1
  • Equipment Shovel [Rounded Handle End] Dark Gray Part 3837 Element 383727 ×1
  • Equipment Goblet / Glass Light Gray Part 2343 Element 4191669 or 626902 ×2

Bars, Ladders and Fences 2 pieces

  • Lever Small Base with Black Lever White Part 298c02 Element 73737 1 spare in the box ×2

Bricks Curved 2 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×1
  • Brick Curved 2 x 4 x 1 1/3 White Part 6081 Element 608151 or 608101 ×1

Transportation - Land 2 pieces

  • Steering Stand 1 x 2 with Black Steering Wheel Light Gray Part 3829c01 Element 9556 ×1
  • Wheel Arch, Mudguard 2 x 4 [Smooth] White Part 3787 Element 4258362 or 378701 ×1

Bricks Special 1 piece

  • Brick Special 1 x 2 with Grille Black Part 2877 Element 287726 ×1

Bricks Wedged 1 piece

  • Brick Wedged 3 x 4 [No Stud Notches] Maersk Blue Part 2399 ×1

Stickers 1 piece

  • Sticker Sheet for Set 1831-1 [No Color/Any Color] Part 170905a ×1

Technic Pins 1 piece

  • Technic Axle Towball Light Gray Part 2736 Element 273602 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 2 x 4 x 2 Trans-Light Blue Part 3823 Element 6581802 or 6253682 ×1

Minifigures 1 figure

  • Man, White Torso, Light Gray Legs, Maersk Blue Cap 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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