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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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76418 Harry Potter Advent Calendar 2023

202 pieces in 138 part and color combinations, plus 6 minifigures.

The official piece count includes the 25 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.

Every bag and the box. Shake out each bag, check its corners and seams, and look inside the empty box.
Inside what you have built. Small pieces lodge inside tubes, under plates and between studs. Turn the model over and look.
The last few steps. Compare each recent step with its parts callout. A piece used in the wrong place earlier leaves you one short later.
Look-alike colors. 3 parts in this set come in two colors that are easy to mix up; they are listed below.
The spare pieces. This set comes with 43 spare pieces, marked on each row of the checklist. One may be the piece you need.
The floor and your building area. Check under furniture, the chair and the edges of your building surface.

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.

Brick Special 1 x 2 Palisade [aka Log] Reddish Brown ×2 Dark Brown ×2 Reddish Brown is redder and lighter than Dark Brown.
Equipment Wand [Individual] Reddish Brown ×1 Dark Brown ×1 Reddish Brown is redder and lighter than Dark Brown.
Plate 2 x 4 Reddish Brown ×1 Dark Brown ×2 Reddish Brown is redder and lighter than Dark Brown.

Piece checklist

Black 12 pieces

Antenna 1 x 4 with Flat Top Black Part 3957b Element 395726 ×1
Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×1
Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×1
Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×1
Equipment Wand [Individual] Black Part 36752a 1 spare in the box ×1
Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 ×1
Top Hat Black Part 3878 Element 4569092 or 4105175 ×1
Weapon Lightsaber Hilt with Bottom Ring Black Part 64567 Element 4614712 or 4598897 2 spares in the box ×3
Wheel Skateboard / Trolley Black Part 2496 Element 6223673 or 4569104 ×2

Dark Green 12 pieces

Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Green Part 54200 Element 6618111 or 4504375 2 spares in the box ×6
Plate 1 x 1 Dark Green Part 3024 Element 6618077 or 6055169 1 spare in the box ×4
Plate Round 1 x 1 with Open Stud Dark Green Part 85861 Element 6230571 1 spare in the box ×2

Red 12 pieces

Brick 1 x 4 Red Part 3010 Element 301021 ×1
Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Red Part 22388 Element 6350414 1 spare in the box ×1
Plant, Cherries Red Part 22667 Element 6100565 or 6062390 1 spare in the box ×1
Plate 1 x 2 Red Part 3023 Element 302321 ×3
Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
Plate 2 x 4 Red Part 3020 Element 302021 ×2
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×1
Plate Special 2 x 2 with Groove and Center Stud (Jumper) Red Part 87580 Element 6126048 or 4581308 ×1
Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×1

Dark Bluish Gray 11 pieces

Bracket 2 x 2 with 1 x 2 Vertical Studs Dark Bluish Gray Part 41682 Element 6250018 ×1
Brick Round 2 x 2 with Axle Hole Dark Bluish Gray Part 3941 Element 4249139 ×1
Cone 1 x 1 Inverted with Bar at Bottom (Ice Cream Cone) Dark Bluish Gray Part 11610 Element 6538446 or 6207934 ×4
Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×1
Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×1
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×1
Plate Special 1 x 2 Rounded with 2 Open Studs Dark Bluish Gray Part 35480 Element 6221607 ×1
Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×1

Tan 11 pieces

Brick Sloped 65° 2 x 1 x 2 Tan Part 60481 Element 4626200 ×2
Plate 3 x 3 Tan Part 11212 Element 6115031 ×1
Plate Round 1 x 1 with Solid Stud Tan Part 6141 Element 4161734 or 614105 1 spare in the box ×2
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Tan Part 4032a Element 4140562 or 403205 ×1
Plate Round 4 x 4 with Pin Hole Tan Part 60474 Element 6302268 ×1
Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Tan Part 32828 Element 6286492 2 spares in the box ×2
Tile 1 x 2 with Letter, Red Seal Print Tan Part 3069bpr0271 Element 6284163 ×1
Tile 2 x 2 with Wanted Poster, 'HAVE YOU SEEN THIS WIZARD?', Sirius Black Print Tan Part 3068bpr0673 Element 6434526 ×1

Pearl Gold 10 pieces

Cone 1 x 1 [Top Groove] Pearl Gold Part 59900 Element 4529247 ×1
Cone 1.17 x 1.17 x 2/3 (Fez) Pearl Gold Part 85975 Element 6173139 or 6006217 ×1
Headwear Accessory Ninja Helmet Horn/Antlers, Elaborate Pearl Gold Part 11437 Element 6132730 ×1
Plate Round 1 x 1 with Open Stud Pearl Gold Part 85861 Element 6190252 or 6141499 2 spares in the box ×2
Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 1 spare in the box ×2
Tap 1 x 1 without Hole in Spout Pearl Gold Part 4599b Element 6146054 1 spare in the box ×1
Tile, Star with Stud Holder, Pin Hole Pearl Gold Part 11609 Element 6651230 or 6184647 2 spares in the box ×2

Dark Brown 9 pieces

Brick Round 1 x 1 Open Stud Dark Brown Part 3062b Element 6022105 ×3
Brick Special 1 x 1 with Stud on 1 Side Dark Brown Part 87087 Element 6251021 ×1
Brick Special 1 x 2 Palisade [aka Log] Dark Brown Part 30136 Element 4519970 Also in Reddish Brown ×2
Equipment Wand [Individual] Dark Brown Part 36752a 1 spare in the box Also in Reddish Brown ×1
Plate 2 x 4 Dark Brown Part 3020 Element 6226792 Also in Reddish Brown ×2

Sand Green 9 pieces

Brick 1 x 2 Sand Green Part 3004 Element 4642425 or 4623925 ×2
Brick 1 x 4 Sand Green Part 3010 Element 4521947 or 4517505 ×1
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Sand Green Part 54200 Element 4652205 2 spares in the box ×6

Dark Tan 5 pieces

Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] Dark Tan Part 85080 Element 6001826 ×3
Equipment Wand [Individual] Dark Tan Part 36752a 1 spare in the box ×1
Tile 1 x 4 with Wooden Sign, Pointing Finger, Dark Brown 'HOGWARTS' Print Dark Tan Part 2431pr0194 Element 6434527 ×1

Green 5 pieces

Plant, Plate 1 x 1 Round with 3 Leaves Green Part 32607 Element 6229130 ×1
Plate 2 x 4 Green Part 3020 Element 302028 ×2
Plate Special 1 x 2 with Door Rail Green Part 32028 Element 4272665 or 4107760 ×2

Yellow 5 pieces

Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Yellow Part 60897 Element 6348065 or 4613258 ×4
Plate Special 1 x 2 [Side Handle Closed Ends] Yellow Part 48336 Element 4501232 ×1

Trans-Clear 4 pieces

Equipment Goblet / Glass Trans-Clear Part 2343 Element 6166107 or 3000240 ×1
Equipment Stein/Cup with Trans-Orange Drink Pattern Trans-Clear Part 68495pat0001 Element 6514376 or 6306748 ×1
Panel 1 x 2 x 1 [Rounded Corners] Trans-Clear Part 4865b Element 6514121 or 6246888 ×2

Trans-Orange 3 pieces

Flame / Headwear Accessory Plume / Feather, Triple Point Trans-Orange Part 64647 Element 6314353 or 6100044 1 spare in the box ×2
Wave / Flame Small with Pin Trans-Orange Part 37775 Element 6514274 or 6357747 1 spare in the box ×1

Trans-Yellow 3 pieces

Equipment Magic Wand Trans-Yellow Part 6124 Element 6411593 1 spare in the box ×1
Minifig Head [Plain] [Vented Stud - 2 Holes] Trans-Yellow Part 28621 Element 6513997 or 6300208 ×1
Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×1

Dark Blue 2 pieces

Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Blue Part 18674 Element 6253885 ×1
Seat / Chair 2 x 2 Dark Blue Part 4079 ×1

Dark Red 2 pieces

Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Dark Red Part 22388 Element 6398466 1 spare in the box ×1
Plate Round 1 x 1 with Solid Stud Dark Red Part 6141 Element 6314247 or 4209387 1 spare in the box ×1

Flat Silver 2 pieces

Equipment Goblet / Glass Flat Silver Part 2343 Element 6107389 ×1
Equipment Winder Key [Toy] Flat Silver Part 98375 Element 6363150 or 6176749 1 spare in the box ×1

Trans-Light Blue 2 pieces

Brick Round 2 x 2 Dome Top, Hollow Stud Trans-Light Blue Part 30367c Element 6507968 or 6264989 ×1
Rock 1 x 1 Crystal 5 Point Trans-Light Blue Part 30385 Element 6507865 or 6296003 ×1

Bright Light Yellow 1 piece

Plate 1 x 2 Bright Light Yellow Part 3023 Element 6554796 or 6201647 ×1

Bright Pink 1 piece

Plate Round 1 x 1 Swirled Top Bright Pink Part 15470 Element 6424008 or 6060795 1 spare in the box ×1

Dark Orange 1 piece

Food Turkey Drumstick [Long] - 22mm Oval Opening Dark Orange Part 42876 Element 6360331 or 6247204 ×1

Dark Purple 1 piece

Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Purple Part 15573 Element 6092604 ×1

Dark Turquoise 1 piece

Plate 1 x 2 Dark Turquoise Part 3023 Element 6213777 or 4218493 ×1

Glitter Trans-Purple 1 piece

Cone 1 x 1 [Top Groove] Glitter Trans-Purple Part 59900 Element 6514025 or 6337632 ×1

Light Aqua 1 piece

Plate Round 1 x 1 Swirled Top Light Aqua Part 15470 Element 6249118 1 spare in the box ×1

Lime 1 piece

Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×1

Magenta 1 piece

Plant, Cherries Magenta Part 22667 Element 6100562 or 6062389 1 spare in the box ×1

Opal Trans-Dark Blue 1 piece

Cone 1 x 1 [Top Groove] Opal Trans-Dark Blue Part 59900 Element 6514020 or 6337455 ×1

Orange 1 piece

Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×1

Trans-Brown 1 piece

Equipment Bottle Trans-Brown Part 95228 Element 6507877 or 6247372 ×1

Trans-Dark Blue 1 piece

Food Popsicle / Lollipop Trans-Dark Blue Part 30222 Element 6514029 or 6267057 ×1

Trans-Dark Pink 1 piece

Equipment Magic Wand Trans-Dark Pink Part 6124 Element 6245512 or 4499710 1 spare in the box ×1

Minifigures 6 figures

Ron Weasley - Reddish Brown Jacket, Dark Blue Hat Minifigure, checked as a whole figure ×1
Harry Potter, Dark Blue Jacket, Dark Red Hoodie Minifigure, checked as a whole figure ×1
Aberforth Dumbledore Minifigure, checked as a whole figure ×1
Hermione Granger - Dark Brown Jacket, Red Hat Minifigure, checked as a whole figure ×1
Draco Malfoy - Black Jacket, Light Bluish Grey Ushanka Minifigure, checked as a whole figure ×1
Madam Rosmerta 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.