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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.

Checking

6868 Hulk's Helicarrier Breakout

369 pieces in 147 part and color combinations, plus 4 minifigures.

The piece count includes the 21 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. 2 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 10 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.

Plate 6 x 8 Black ×1 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Black ×9 Dark Bluish Gray ×3 Black is darker than Dark Bluish Gray.

Piece checklist

Technic Pins 28 pieces

Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 2 spares in the box ×11
Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×1
Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×8
Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×4
Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 2 spares in the box ×4

Bricks Round and Cones 27 pieces

Brick Round 4 x 4 Centre Hole Black Part 87081 Element 4558957 ×1
Brick Round 1 x 1 Open Stud Dark Bluish Gray Part 3062b Element 4211090 ×4
Brick Round 2 x 2 [Grill] Light Bluish Gray Part 92947 Element 4650645 or 4610816 ×4
Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×1
Cylinder Half 3 x 6 x 6 with 1 x 2 Cutout Trans-Clear Part 87926 Element 6003198 ×2
Brick Round 1 x 1 Open Stud Trans-Yellow Part 3062b Element 6514236 or 6238674 ×10
Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×5

Plates Round Curved and Dishes 21 pieces

Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×4
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Green Part 4032a Element 403228 ×2
Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×4
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×2
Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×1
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×2
Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×4
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×2

Technic Bricks 20 pieces

Technic Brick 1 x 6 [5 Pin Holes] Blue Part 3894 Element 389423 ×2
Technic Brick 1 x 2 [2 Pin Holes] Dark Bluish Gray Part 32000 Element 4210762 ×2
Technic Brick 1 x 4 [3 Pin Holes] Light Bluish Gray Part 3701 Element 4211441 ×14
Technic Brick 1 x 8 [7 Pin Holes] Light Bluish Gray Part 3702 Element 4211442 ×1
Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×1

Plates Wedged 18 pieces

Wedge Plate 3 x 6 Cut Corners Black Part 2419 Element 241926 ×4
Wedge Plate 8 x 3, 22° Left Dark Blue Part 50305 Element 6249596 or 4651377 ×1
Wedge Plate 8 x 3, 22° Right Dark Blue Part 50304 Element 6115221 or 4651373 ×1
Wedge Plate 8 x 8 Cut Corner Dark Blue Part 30504 Element 6351760 or 6003093 ×2
Wedge Plate 4 x 2 Left Dark Bluish Gray Part 41770 Element 4210788 ×1
Wedge Plate 4 x 2 Right Dark Bluish Gray Part 41769 Element 4210782 ×1
Wedge Plate 4 x 6 Cut Corners Dark Bluish Gray Part 32059 Element 4521572 or 4210652 ×3
Wedge Plate 6 x 6 Cut Corner Light Bluish Gray Part 6106 Element 4211520 ×4
Wedge Plate 3 x 4 with Stud Notches [Reinforced Underside] Yellow Part 90194 Element 6526040 or 4649050 ×1

Bricks Curved 17 pieces

Brick Curved 4 x 1 Double, No Studs Dark Bluish Gray Part 93273 Element 4648256 ×2
Brick Curved Inverted 6 x 1 Dark Bluish Gray Part 42023 Element 4210779 ×4
Brick Curved 1 x 2 x 1 1/3 with Curved Top Light Bluish Gray Part 6091 Element 6285778 or 4211519 ×2
Brick Curved 3 x 1 No Studs Light Bluish Gray Part 50950 Element 4251163 ×4
Brick Curved 4 x 1 Double, No Studs Light Bluish Gray Part 93273 Element 4622803 ×3
Brick Curved 3 x 1 No Studs White Part 50950 Element 6548268 or 4249112 ×2

Tiles Round and Curved 16 pieces

Tile Round 2 x 2 with Bottom Cross Light Bluish Gray Part 4150 Element 4211480 ×5
Tile Round 1 x 1 Trans-Orange Part 98138 Element 6514197 or 6274747 1 spare in the box ×11

Tiles Special 16 pieces

Tile Special 1 x 1 with Clip with Rounded Tips Dark Bluish Gray Part 12825 Element 6030710 ×2
Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 ×10
Tile Special 2 x 3 with 2 Clips [Thick U Clips] Trans-Light Blue Part 30350c ×2
Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×1
Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×1

Bricks 14 pieces

Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Dark Bluish Gray Part 2454a ×4
Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×4
Brick 1 x 6 Dark Bluish Gray Part 3009 Element 4211100 ×1
Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×1
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

Bricks Special 14 pieces

Brick Special 1 x 2 with 2 Pins, Round Pin Holes Dark Bluish Gray Part 30526 Element 4210697 ×2
Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Light Bluish Gray Part 60475b Element 6345426 or 4533772 ×2
Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×4
Brick Special 1 x 4 Palisade [aka Log] Light Bluish Gray Part 30137 Element 4211833 ×4
Brick Special 1 x 2 with Grille White Part 2877 Element 6552093 or 287701 ×2

Bars, Ladders and Fences 12 pieces

Bar 5L with Handle (Friction Ram) Black Part 87618 Element 4623113 ×3
Cylinder 1 x 5 1/2 with Handle (Friction Cylinder) Black Part 87617 Element 6195916 or 4569407 ×1
Plate Special 1 x 6 with Train Wagon End Fence Black Part 6583 Element 6271649 or 658326 ×2
Lever Small Base with Black Lever Light Bluish Gray Part 298c02 Element 4221775 1 spare in the box ×1
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Dark Blue Part 58176 Element 6328198 or 6171763 ×4
Bar 4L (Lightsaber Blade / Wand) White Part 30374 Element 6116602 or 4129836 ×1

Hinges, Arms and Turntables 8 pieces

Hinge Brick 1 x 4 [Lower] Black Part 3831 Element 383126 ×2
Hinge Brick 1 x 4 [Upper] Black Part 3830 Element 6344999 or 6011458 ×2
Hinge Brick 2 x 2 Top Plate Thin Blue Part 6134 Element 4195007 or 4118900 ×2
Hinge Brick 1 x 2 Base Dark Bluish Gray Part 3937 Element 4211066 ×2

Flags, Banners and Signs 6 pieces

Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] Black Part 11055 Element 6011815 ×2
Flag 7 x 3 with Rod Trans-Light Blue Part 30292 Element 6514075 or 6404155 ×4

Panels 5 pieces

Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Dark Blue Part 43337 Element 6003091 or 4264589 ×2
Panel 1 x 2 x 1 [Square Corners] Light Bluish Gray Part 4865a Element 4211515 ×2
Panel 1 x 4 x 3 [Side Supports / Hollow Studs] White Part 60581 Element 6615548 or 4558208 ×1

Minifig Shields, Weapons, & Tools 4 pieces

Weapon Bow and Arrow Compound Black Part 10258 Element 6004944 ×1
Tool Hammer / Sledgehammer Light Bluish Gray Part 75904 Element 6004729 ×1
Weapon Sai Pearl Gold Part 98139 Element 6270135 or 4646866 ×1
Weapon Staff with Forked End (Pharaoh) Pearl Gold Part 93252 Element 4610762 ×1

Minifig Upper Body 4 pieces

Arm Mechanical with Clip [Thin Support] Pearl Titanium Part 53989 Element 4625860 or 4613114 ×2
Arm Mechanical with 2 Clips [Battle Droid] White Part 30377 Element 6321345 or 4260649 1 spare in the box ×2

Bricks Wedged 3 pieces

Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] Black Part 4855 Element 4550004 or 4278249 ×1
Brick Wedged, Curved 4 x 4 No Top Studs Dark Blue Part 47753 Element 6289824 or 6115178 ×1
Brick Wedged, Sloped 6 x 4 Cutout, Stud Notches Dark Blue Part 6153b Element 6115933 or 6003092 ×1

Supports, Girders and Cranes 2 pieces

Support 1 x 1 x 5 1/3 Spiral Staircase Axle Black Part 40244 Element 4155558 ×2

Technic Beams 2 pieces

Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×2

Transportation - Land 2 pieces

Seat / Chair 2 x 2 with Center Sprue Mark Blue Part 4079b Element 407923 ×2

Transportation - Sea and Air 2 pieces

Tail Shuttle Dark Blue Part 6239 Element 6482963 or 6127113 ×2

Windows and Doors 2 pieces

Window 1 x 4 x 3 without Shutter Tabs Black Part 60594 Element 4530589 or 4520620 ×2

Windscreens and Fuselage 2 pieces

Windscreen 6 x 4 x 2 1/3 Bubble Canopy with Handle Trans-Brown Part 87752 Element 6254265 or 4621774 ×1
Windscreen 1 x 6 x 3 Trans-Light Blue Part 64453 Element 6580414 or 6514292 ×1

Gear Parts 1 piece

Comic Book, Super Heroes, Marvel, Issue 3 (6013287 / 6013288) [No Color/Any Color] Part 6013287 ×1

Minifig Accessories 1 piece

Tap 1 x 1 without Hole in Spout Red Part 4599b Element 459921 ×1

Stickers 1 piece

Sticker Sheet for Set 6868-1 [No Color/Any Color] Part 10842 Element 6007334 ×1

String, Bands and Reels 1 piece

Technic Rubber Belt Medium [24mm ID] [Round Cross Section] Red Part 85544 Element 4544145 or 4544143 ×1

Technic Gears 1 piece

Technic Driving Ring Extension, 4 Ridges Light Bluish Gray Part 32187 Element 4278756 or 4209329 ×1

Tools 1 piece

Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Tubes and Hoses 1 piece

Hose Rigid 3mm D. 6L / 4.8cm Black Part 75c06 Element 4640742 or 4546459 ×1

Minifigures 4 figures

Hawkeye with Red Glasses Minifigure, checked as a whole figure ×1
Thor with Red Cape and Bright Yellow Hair Minifigure, checked as a whole figure ×1
Loki, Dark Bluish Gray Outfit Minifigure, checked as a whole figure ×1
Hulk (Big Fig), Black Hair, Dark Tan Pants 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.