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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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40305 LEGO Brand Store

354 pieces in 121 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 parts inside the set's minifigures, which this inventory lists separately. 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

White 89 pieces

  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×7
  • Brick 1 x 1 x 5 with Solid Stud White Part 2453b Element 6550132 or 245301 ×2
  • Brick 1 x 16 White Part 2465 Element 6552092 or 246501 ×3
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×6
  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×6
  • Brick 1 x 2 x 5 with Hollow Studs White Part 2454b Element 6619280 or 245401 ×3
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×3
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×6
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×10
  • Brick Curved 2 x 2 x 2/3 White Part 15068 Element 6552147 or 6047220 ×4
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×1
  • Brick Special 1 x 1 with Scroll with Open Stud White Part 20310 Element 6615551 or 6133766 ×2
  • Brick Special 1 x 2 with Grille White Part 2877 Element 6552093 or 287701 ×8
  • Brick Special 1 x 4 with 4 Studs on One Side White Part 30414 Element 6550167 or 4143254 ×5
  • Door Frame 1 x 4 x 6 Type 2 White Part 60596 Element 6262945 or 4541956 ×1
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×1
  • Hinge Brick 1 x 2 Locking with 2 Fingers Horizontal End, 9 Teeth White Part 30540 Element 6058180 or 4582175 ×1
  • Hinge Brick 1 x 2 Top Plate Thin White Part 3938 Element 393801 ×1
  • Hinge Plate 1 x 4 Locking Dual 1 Finger White Part 44568 Element 6276043 or 4193479 ×2
  • Minifig Trophy Statuette White Part 90398 Element 6551374 or 6299492 1 spare in the box ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box Also in Trans-Clear ×4
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×2
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×3
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×1
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes White Part 92593 Element 4597131 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×1

Light Bluish Gray 59 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Light Bluish Gray Part 99780 Element 6004990 ×7
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×4
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×3
  • Brick Sloped Inverted 45° 2 x 1 Light Bluish Gray Part 3665 Element 4211437 ×6
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×1
  • Brick Special 1 x 2 with Masonry Brick Profile Light Bluish Gray Part 98283 Element 6000066 ×10
  • Plate 4 x 8 Light Bluish Gray Part 3035 Element 4211407 ×1
  • Plate 8 x 16 Light Bluish Gray Part 92438 Element 4598522 ×3
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Light Bluish Gray Part 92593 Element 4599498 ×6
  • Plate Special 3 x 4 with 1 x 4 Center Studs [Plain] Light Bluish Gray Part 88646 Element 6122124 or 6079461 ×1
  • Shield Triangular Light Bluish Gray Part 3846 Element 4211465 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×4
  • Tile 2 x 2 Corner Light Bluish Gray Part 14719 Element 6065824 ×8
  • Tile Round 1 x 1 Light Bluish Gray Part 98138 Element 6284071 or 4650260 1 spare in the box ×4

Yellow 51 pieces

  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×1
  • Brick 2 x 2 Corner Yellow Part 2357 Element 235774 or 235724 ×2
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×1
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×1
  • Brick Curved 2 x 2 x 2/3 Yellow Part 15068 Element 6079007 ×4
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Yellow Part 85984 Element 4550348 ×4
  • Panel 1 x 1 x 1 Corner Yellow Part 6231 Element 4201587 or 4113238 ×8
  • Plate 1 x 1 Yellow Part 3024 Element 302424 1 spare in the box ×1
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×1
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Yellow Part 15573 Element 6092583 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Yellow Part 87580 Element 6126050 or 4565386 ×9
  • Tile Round 1 x 1 Yellow Part 98138 Element 6284577 or 6070714 1 spare in the box ×8

Dark Bluish Gray 42 pieces

  • Brick Round 1 x 1 Open Stud Dark Bluish Gray Part 3062b Element 4211090 ×16
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×1
  • Fence Lattice 1 x 4 x 1 Dark Bluish Gray Part 3633 Element 4219725 ×2
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box Also in Black ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×4
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×2
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×2
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×8
  • Tile 2 x 2 with Computer Monitor, White Power Switch Spot Print Dark Bluish Gray Part 3068bpr0136 Element 4288298 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×3

Black 39 pieces

  • Bar 3L Black Part 87994 Element 6185316 or 6093525 2 spares in the box ×3
  • Brick 1 x 8 Black Part 3008 Element 300826 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×4
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 ×2
  • Door Frame 1 x 4 x 6 Type 2 Black Part 60596 Element 6337273 or 4535834 ×2
  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Black Part 30552 Element 4158848 ×3
  • Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 9 Teeth Black Part 60471 Element 4515340 ×6
  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box Also in Dark Bluish Gray ×1
  • Plate 1 x 8 Black Part 3460 Element 346026 ×2
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 2 spares in the box ×5
  • Sports Roller Skate Black Part 11253 Element 6088585 or 6020265 2 spares in the box ×4
  • Tap 1 x 1 without Hole in Spout Black Part 4599b Element 459926 1 spare in the box ×1
  • Window 1 x 2 x 2 Flat Front Black Part 60592 Element 6382697 or 4521439 ×4

Red 20 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted Red Part 99207 Element 6001806 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick Curved 3 x 1 No Studs Red Part 50950 Element 4251162 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×2
  • Flag 4 x 1 Wavy [First Wave Right] Red Part 4495b Element 6268946 or 449521 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 1 x 3 Red Part 3623 Element 362321 ×1
  • Plate 1 x 4 Red Part 3710 Element 371021 ×3
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 1 spare in the box ×1
  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×1

Blue 15 pieces

  • Brick 1 x 1 Blue Part 3005 Element 300523 ×1
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×2
  • Brick Curved 2 x 2 x 2/3 Blue Part 15068 Element 6116786 ×2
  • Brick Curved 4 x 1 Double, No Studs Blue Part 93273 Element 4649773 ×2
  • Plate 1 x 1 Blue Part 3024 Element 302423 1 spare in the box ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×2
  • Plate 4 x 4 Blue Part 3031 Element 4243815 or 303123 ×1
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×4

Trans-Clear 13 pieces

  • Door 1 x 4 x 6 Smooth with Square Handle Plinth Trans-Clear Part 60616a Element 4521504 ×1
  • Glass for Window 1 x 2 x 2 Flat Trans-Clear Part 60601 Element 6673770 or 6524697 ×4
  • Glass for Window 1 x 4 x 6 Trans-Clear Part 57895 Element 6581671 or 6256058 ×2
  • Panel 1 x 6 x 5 Trans-Clear Part 59349 Element 6514106 or 6245253 ×1
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box Also in White ×1
  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 1 spare in the box ×4

Green 3 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Green Part 54200 Element 4546705 or 4503118 1 spare in the box ×1
  • Cone 1 x 1 [Top Groove] Green Part 59900 Element 4529239 ×1
  • Flag 4 x 1 Wavy [First Wave Right] Green Part 4495b Element 6268947 or 449528 ×1

Trans-Dark Blue 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 2 spares in the box ×3

Trans-Green 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×3

Trans-Neon Green 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×3

Dark Purple 2 pieces

  • Brick 1 x 2 Dark Purple Part 3004 Element 6104154 or 4640739 ×2

Tan 2 pieces

  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×2

Trans-Light Blue 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Light Blue Part 6141 Element 6514058 or 6240225 1 spare in the box ×2

Trans-Purple 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Purple Part 6141 Element 6514054 or 6240210 1 spare in the box ×2

Trans-Red 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2

Reddish Brown 1 piece

  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 1 spare in the box ×1

Trans-Bright Green 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Bright Green Part 6141 Element 6514053 or 6240206 1 spare in the box ×1

Trans-Orange 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Sets 40145-1, 40305-1, 40359-1 [No Color/Any Color] Part 20408 Element 6105832 ×1

Minifigures 2 figures

  • Dark Azure Torso, Dark Blue Legs, Medium Nougat Hair Minifigure, checked as a whole figure ×1
  • Kid - White Torso, Tan Legs, Red 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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