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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.

City Advent Calendar 2007

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7907 City Advent Calendar 2007

201 pieces in 118 part and color combinations, plus 8 minifigures.

LEGO counts 232 pieces. This inventory comes from a separate parts catalog and lists 233, including the 32 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

Plates 44 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 2 spares in the box ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 Also in Dark Bluish Gray ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×1
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 Also in Black ×8
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×1
  • Plate 1 x 1 Green Part 3024 Element 302428 2 spares in the box ×2
  • Plate 1 x 2 Green Part 3023 Element 302328 ×8
  • Plate 2 x 2 Green Part 3022 Element 302228 ×3
  • Plate 2 x 4 Green Part 3020 Element 302028 ×3
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 4 x 4 Reddish Brown Part 3031 Element 4243838 or 4225868 ×1
  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 1 spare in the box ×2
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×3
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1

Bricks 27 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×1
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×1
  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×3
  • Brick 1 x 3 Orange Part 3622 Element 4118787 ×2
  • Brick 1 x 4 Orange Part 3010 Element 4118827 ×1
  • Brick 1 x 1 Red Part 3005 Element 300521 ×1
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×3
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×2
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×1

Bricks Round and Cones 24 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×2
  • Cone 1 x 1 [No Top Groove] Dark Bluish Gray Part 4589 Element 4518486 or 4210647 ×4
  • Brick Round 1 x 1 Open Stud Green Part 3062b Element 306228 ×3
  • Brick Round 1 x 1 Open Stud Light Bluish Gray Part 3062b Element 4211412 ×1
  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×1
  • Brick Round 1 x 1 Open Stud Trans-Dark Blue Part 3062b Element 6514233 or 6238044 ×1
  • Brick Round 1 x 1 Open Stud Trans-Green Part 3062b Element 6514234 or 6238046 ×2
  • Brick Round 1 x 1 Open Stud Trans-Yellow Part 3062b Element 6514236 or 6238674 Also in Yellow ×2
  • Brick Round 1 x 1 Open Stud White Part 3062b Element 6619283 or 306201 ×2
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×1
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 Also in Trans-Yellow ×4
  • Cone 1 x 1 [No Top Groove] Yellow Part 4589 Element 458924 ×1

Tiles 22 pieces

  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×2
  • Tile 1 x 2 with Groove Orange Part 3069b Element 4188771 ×1
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 2 spares in the box Also in Trans-Red ×7
  • Tile 1 x 1 with Groove Trans-Green Part 3070b Element 6581818 or 6254249 1 spare in the box ×2
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 1 spare in the box Also in Red ×2
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 2 spares in the box ×7
  • Tile 2 x 2 with Computer Monitor, Dark Bluish Gray Power Switch Icon Print White Part 3068bpr0137 Element 4289304 ×1

Plates Round Curved and Dishes 20 pieces

  • Dish 2 x 2 Inverted [Radar] Dark Bluish Gray Part 4740 Element 4211010 ×1
  • Dish 4 x 4 Inverted [Radar] Dark Bluish Gray Part 3960 Element 4223981 ×1
  • Plate Round 2 x 2 with Axle Hole Type 2 (X Opening) Green Part 4032b ×1
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box Also in Trans-Red ×1
  • Plate Round 2 x 2 with Axle Hole Type 2 (X Opening) Red Part 4032b ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 2 spares in the box ×10
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box Also in Red ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×2
  • Plate Round 2 x 2 with Axle Hole Type 2 (X Opening) White Part 4032b ×1

Minifig Accessories 13 pieces

  • Bag / Briefcase Black Part 4449 Element 6268856 or 4154853 ×1
  • Equipment Radio [Extended Handle, Compact Speaker Grille] Black Part 3962b Element 396226 ×2
  • Equipment Shovel [Rounded Handle End] Black Part 3837 Element 4189009 or 383726 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×1
  • Tap 1 x 1 without Hole in Spout Blue Part 4599b Element 459923 1 spare in the box ×1
  • Equipment Hairbrush Short Handle [10mm] Bright Light Orange Part 3852b Element 4243668 ×1
  • Bag / Briefcase Light Bluish Gray Part 4449 Element 6268858 or 4211712 ×1
  • Equipment Hand Truck / Sack Barrow Frame Red Part 2495 Element 6587292 or 6242131 ×1
  • Bag / Briefcase Reddish Brown Part 4449 Element 6268857 or 4211235 ×1
  • Equipment Brush / Push Broom Reddish Brown Part 3836 Element 4211157 ×1
  • Equipment Flotation Ring [Life Preserver] White Part 30340 Element 4297083 ×1
  • Tap 1 x 1 without Hole in Spout Yellow Part 4599b Element 4256320 1 spare in the box ×1

Plates Special 11 pieces

  • Bracket 2 x 2 - 2 x 2 Black Part 3956 Element 6254808 or 6019217 ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
  • Plate Special 2 x 2 with Wheel Holders Black Part 4600 Element 460026 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Dark Bluish Gray Part 4085c Element 4210632 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Light Bluish Gray Part 61252 Element 6335378 or 4541978 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Red Part 4085c Element 408521 ×2
  • Bracket 1 x 2 - 1 x 4 [Square Corners] White Part 2436 Element 4282737 or 4159314 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] White Part 4085c Element 408501 ×1

Hinges, Arms and Turntables 6 pieces

  • Hinge Brick 2 x 2 Top Plate Thin Black Part 6134 Element 4124096 or 613426 ×1
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
  • Hinge Brick 1 x 2 Base Dark Bluish Gray Part 3937 Element 4211066 ×1
  • Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Light Bluish Gray Part 3938 Element 4211470 ×1
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×1

Bricks Sloped 5 pieces

  • Brick Sloped 45° 2 x 1 with Bottom pin, with Green and Red Buttons and Keypad Print Light Bluish Gray Part 3040bpr0003 Element 4228198 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Orange Part 3040b Element 4121967 or 4118901 ×2
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×1
  • Brick Sloped 45° 2 x 2 with Windows in Computer Screen Print White Part 3039pr0001 Element 4195657 ×1

Minifig Shields, Weapons, & Tools 4 pieces

  • Tool Screwdriver and Spanner / Wrench Black Part 4006 Element 6034000 or 4569095 ×1
  • Weapon Axe Black Part 3835 Element 383526 ×1
  • Tool Circular Saw Dark Bluish Gray Part 30194 Element 4211080 ×1
  • Tool Pickaxe Dark Bluish Gray Part 3841 Element 4211007 ×1

Tiles Special 4 pieces

  • Tile Special 1 x 2 with Handle Blue Part 2432 Element 243223 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips Red Part 2555 Element 255521 ×1
  • Tile Special 1 x 2 with Handle Red Part 2432 Element 243221 ×1

Bars, Ladders and Fences 3 pieces

  • Bar 6.6L with Stop Ring [Umbrella Stand] Red Part 4095 Element 4143125 or 409571 ×1
  • Antenna 1 x 4 with Rounded Top White Part 3957a ×1
  • Bar 1 x 4 x 2 with Studs White Part 4083 Element 408301 ×1

Bricks Special 3 pieces

  • Brick Special 1 x 2 with Studs on 2 Sides Black Part 52107 Element 4253815 ×1
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×1
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×1

Panels 3 pieces

  • Panel 1 x 2 x 1 [Square Corners] Light Bluish Gray Part 4865a Element 4211515 ×1
  • Panel 1 x 2 x 1 [Square Corners] Trans-Clear Part 4865a Element 4113106 ×1
  • Panel 1 x 2 x 3 [Hollow Studs] White Part 2362b Element 4113022 or 236201 ×1

Wheels and Tyres 3 pieces

  • Train Wheel Small, hole notched for wheels holder pin Black Part 50254 Element 4295370 or 4227006 ×2
  • Wheel Skateboard / Trolley Black Part 2496 Element 6223673 or 4569104 1 spare in the box ×1

Containers 2 pieces

  • Trash Can with 2 Cover Holders Dark Bluish Gray Part 2439 Element 4210985 ×1
  • Box / Crate with Handholds 3 x 4 x 1 2/3 Reddish Brown Part 30150 Element 4211185 ×1

Energy Effects 2 pieces

  • Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a 1 spare in the box ×2

Flags, Banners and Signs 2 pieces

  • Flag 2 x 2 Square [Thin Clips] Light Bluish Gray Part 2335 Element 4523408 or 4245322 ×1
  • Road Sign Clip-on 2.2 x 2.667 Triangular Yellow Part 30259 Element 4655574 or 4297079 ×1

Minifig Neckwear 1 piece

  • Minifig Neckwear Basket [D Style] Blue Part 4523 Element 4186464 or 4128572 ×1

Tiles Round and Curved 1 piece

  • Tile Round 2 x 2 with Clock Print White Part 4150pr0001 Element 4507355 or 4142872 ×1

Transportation - Land 1 piece

  • Seat / Chair 2 x 2 with Center Sprue Mark Green Part 4079b Element 4296197 ×1

Minifigures 8 figures

  • Policeman, Black Jacket with Pocket and Badge, White Hat, Glasses Minifigure, checked as a whole figure ×1
  • Construction Worker, Orange Jacket with Zipper and Reflective Stripes, Orange Legs, Red Hard Hat, Brown Eyebrows Minifigure, checked as a whole figure ×1
  • Construction Worker, Orange Jacket with Zipper and Reflective Stripes, Green Legs, Black Cap, Beard and Glasses Minifigure, checked as a whole figure ×1
  • Pilot, Blue Jacket with Plane Logo and Blue Tie, Blue Hat, Goatee Beard Minifigure, checked as a whole figure ×1
  • Fireman, Black Fire Jacket, White Helmet, Silver Sunglasses Minifigure, checked as a whole figure ×1
  • Train Worker, Dark Blue Jacket with Train Logo, Black Hat, Beard and Glasses Minifigure, checked as a whole figure ×1
  • Man, Blue Overalls over Shirt, Blue Legs, Black Hat, Reddish Brown Eyebrows Minifigure, checked as a whole figure ×1
  • Mechanic, Blue Jumpsuit with Octan Logo, Dark Bluish Gray Legs, Red Cap, Glasses 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.