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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.

Engine Co. No. 9

Checking

590 Engine Co. No. 9

321 pieces in 78 part and color combinations, plus 4 minifigures.

LEGO counts 280 pieces. This inventory comes from a separate parts catalog and lists 338, including the 17 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 150 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×2
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×2
  • Brick 1 x 1 Red Part 3005 Element 300521 ×38
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×47
  • Brick 1 x 3 Red Part 3622 Element 362221 ×17
  • Brick 1 x 4 Red Part 3010 Element 301021 ×10
  • Brick 1 x 4 with Black 15 Bars Grill Print Red Part 3010apr0004 ×1
  • Brick 1 x 4 with Chrome Silver Car Grill Print [Embossed] Red Part 3010apr0003 ×2
  • Brick 1 x 6 Red Part 3009 Element 300921 ×15
  • Brick 1 x 8 Red Part 3008 Element 300821 ×7
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×1
  • Brick 1 x 2 Trans-Clear Part 3004 Element 4256587 or 300410 ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×5
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×1

Plates 67 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 2 x 10 Black Part 3832 Element 383226 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×4
  • Plate 6 x 16 Black Part 3027 Element 302726 ×3
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×1
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×1
  • Plate 1 x 1 Red Part 3024 Element 302421 ×8
  • Plate 1 x 2 Red Part 3023 Element 302321 ×14
  • Plate 1 x 4 Red Part 3710 Element 371021 ×8
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×6
  • Plate 2 x 6 Red Part 3795 Element 379521 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×6
  • Plate 4 x 10 Red Part 3030 Element 4535164 or 4188302 ×1
  • Plate 4 x 4 Red Part 3031 Element 4243814 or 303121 ×1
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×1
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×1

Wheels and Tyres 18 pieces

  • Plate Special 2 x 2 with Wheels Red Black Part 122c01 ×6
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×12

Windows and Doors 15 pieces

  • Door 1 x 4 x 6 Trans-Clear Part 3644 ×4
  • Door 1 x 4 x 5 with 4 Panes, Squared Base White Part 3861b Element 4160992 or 386101 ×2
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] White Part 3081c01 Element 73594 ×1
  • Window 1 x 2 x 2 Shutter White Part 3582 ×2
  • Window 1 x 2 x 3 Pane White Part 3854 Element 385401 ×4
  • Window 1 x 4 x 3 White Part 3853 Element 4175392 or 385301 ×2

Bars, Ladders and Fences 11 pieces

  • Fence Lattice 1 x 4 x 1 Light Gray Part 3633 Element 4207300 or 363302 ×4
  • Antenna with Side Spokes Milky White Part 3144 ×1
  • Fence Lattice 1 x 4 x 2 Red Part 3185 Element 318521 ×3
  • Ladder Two Piece, Bottom Section Yellow Part 420 ×2
  • Ladder Two Piece, Top Section Yellow Part 421 ×1

Bricks Sloped 11 pieces

  • Brick Sloped 45° 2 x 1 without Bottom Pin Black Part 3040a ×1
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×4

Hinges, Arms and Turntables 7 pieces

  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×1
  • Hinge Brick 1 x 4 [Lower] Red Part 3831 Element 6512257 or 6397573 ×2
  • Hinge Brick 1 x 4 [Upper] Red Part 3830 Element 6397607 or 6011464 ×2
  • Hinge Plate 2 x 5 with Large Hole [Complete Assembly] Red Part 3149bc01 Element 4188477 or 4106942 ×1
  • Turntable 2 x 2 Plate, Base Red Part 3680 Element 368021 ×1

Bricks Round and Cones 6 pieces

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

Bricks Special 6 pieces

  • Brick Special 1 x 1 x 2 with Shutter Holder Red Part 3581 Element 4207299 or 358121 ×6

Transportation - Land 6 pieces

  • Wheel Arch, Mudguard 2 x 4 Studded Red Part 3788 Element 378821 ×6

Bricks Curved 4 pieces

  • Brick Arch 1 x 4 Red Part 3659 Element 365921 ×4

Baseplates 3 pieces

  • Baseplate 10 x 16 Green Part 397 ×1
  • Baseplate 16 x 22 Green Part 210 ×1
  • Baseplate 16 x 32 Green Part 3857 Element 4219615 or 274828 ×1

Tiles 3 pieces

  • Tile 1 x 2 without Groove Black Part 3069a ×3

Flags, Banners and Signs 2 pieces

  • Flag on Flagpole, Straight White Part 3596 Element 4161051 or 4106898 ×1
  • Road Sign Round with No Thoroughfare / No Entry Print White Part 3350pr0005 ×1

Minifig Shields, Weapons, & Tools 2 pieces

  • Tool Pickaxe Dark Gray Part 3841 Element 384127 ×1
  • Weapon Axe Light Gray Part 3835 Element 383502 ×1

Plates Special 2 pieces

  • Plate Special 1 x 4 with Towball Red Part 3184 Element 318421 ×1
  • Plate Special 1 x 4 with Towball Socket, Long, 2 Slots Red Part 3183a ×1

Technic Bricks 2 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×2

Technic Pins 2 pieces

  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×2

Minifig Accessories 1 piece

  • Equipment Shovel [Rounded Handle End] Dark Gray Part 3837 Element 383727 ×1

Plants & Trees 1 piece

  • Plant, Fruit Tree Green Part 3470 Element 347028 ×1

Stickers 1 piece

  • Sticker Sheet for Set 590-1 [No Color/Any Color] Part 4659a ×1

Windscreens and Fuselage 1 piece

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

Minifigures 4 figures

  • Fireman, Plain Black, Black Helmet Minifigure, checked as a whole figure ×3
  • Fireman, Plain Black, Black Helmet, Light Gray Airtanks 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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