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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

60123 Volcano Supply Helicopter

314 pieces in 165 part and color combinations, plus 3 minifigures.

The official piece count includes the 16 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. 6 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 22 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 1 x 12 Black ×2 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
Plate 1 x 2 Black ×4 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
Plate 2 x 6 Black ×3 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 Grille with Bottom Groove Black ×3 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
Wedge Plate 4 x 2 Left Black ×2 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
Wedge Plate 4 x 2 Right Black ×2 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.

Piece checklist

Bricks Sloped 27 pieces

Brick Sloped 45° 2 x 2 with Green Radar, Green/Red Buttons and Disk Slot Print Black Part 3039pr0002 Element 4295400 ×1
Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×2
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×8
Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×6
Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Dark Bluish Gray Part 4287b ×4
Brick Sloped Inverted 45° 6 x 4 Double with 4 x 4 Recessed and 3 Holes Dark Bluish Gray Part 60219 Element 4549999 ×2
Brick Sloped 30° 1 x 2 x 2/3 Yellow Part 85984 Element 4550348 ×4

Bricks Curved 22 pieces

Brick Curved 10 x 1 [Symmetric Inside Ridges] Dark Bluish Gray Part 13731 Element 6037666 ×2
Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Bluish Gray Part 11477 Element 6029948 ×2
Brick Curved 2 x 2 x 2/3 Dark Bluish Gray Part 15068 Element 6071261 ×4
Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End Dark Bluish Gray Part 47457 Element 4218696 ×2
Brick Curved 4 x 1 Double, No Studs Dark Bluish Gray Part 93273 Element 4648256 ×1
Brick Curved 4 x 2 No Studs Dark Bluish Gray Part 93606 Element 6005668 ×2
Brick Curved 1 x 2 x 1 1/3 with Curved Top Lime Part 6091 Element 6411328 or 4212446 ×4
Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Lime Part 11153 Element 6578745 or 6033782 ×2
Brick Curved 4 x 2 No Studs Lime Part 93606 Element 6054531 ×3

Wheels and Tyres 16 pieces

Tread Small (20 Links) Black Part 43903 Element 4180576 ×2
Tyre 14 x 4 Smooth Small Single [New Style] Black Part 59895 Element 4516843 or 4507700 1 spare in the box ×4
Wheel Centre Small with Stub Axles (Pulley Wheel) Dark Bluish Gray Part 3464 Element 6005463 ×2
Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×6
Wheel 8 x 6 Light Bluish Gray Part 4624 Element 4211506 1 spare in the box ×2

Bricks 11 pieces

Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×2
Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×2
Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×3
Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×2
Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×2

Plates Round Curved and Dishes 11 pieces

Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×2
Dish 3 x 3 Inverted [Radar] Dark Bluish Gray Part 43898 Element 4210865 ×1
Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×1
Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1
Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1
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 Rounded Bottom [Boat Stud] White Part 2654 Element 6601843 or 6552259 ×2
Plate Round 4 x 4 with Pin Hole Yellow Part 60474 Element 4515349 ×1

Hinges, Arms and Turntables 10 pieces

Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Black Part 30553 Element 4143372 ×1
Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×1
Turntable 4 x 4 Square Base, Locking Black Part 61485 Element 4517986 ×1
Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×2
Hinge Brick 2 x 2 Top Plate Thin Light Bluish Gray Part 6134 Element 4211881 ×2
Hinge Brick 1 x 2 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Yellow Part 30386 Element 4140704 ×2
Hinge Brick 1 x 4 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Yellow Part 30387 Element 4218728 or 4144568 ×1

Tiles 10 pieces

Tile 1 x 3 Dark Bluish Gray Part 63864 Element 4568734 ×2
Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×2
Tile 1 x 2 with Groove Lime Part 3069b Element 4500125 or 4164025 ×2
Tile 2 x 2 with Groove Lime Part 3068b Element 4518611 or 4184857 ×2
Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×2

Tiles Special 10 pieces

Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 Also in Dark Bluish Gray ×3
Tile Special Round 2 x 2 - Thick Lifting Ring Black Part 74698 Element 6010831 ×1
Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 Also in Black ×1
Tile Special 1 x 2 with Handle Dark Bluish Gray Part 2432 Element 4211039 ×2
Tile Special Round 2 x 2 with Hole Dark Bluish Gray Part 15535 Element 6055313 ×2
Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×1

Plates Wedged 9 pieces

Wedge Plate 4 x 2 Left Black Part 41770 Element 4161332 Also in Dark Bluish Gray ×2
Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 Also in Dark Bluish Gray ×2
Wedge Plate 4 x 2 Left Dark Bluish Gray Part 41770 Element 4210788 Also in Black ×2
Wedge Plate 4 x 2 Right Dark Bluish Gray Part 41769 Element 4210782 Also in Black ×1
Wedge Plate 6 x 3 Left Lime Part 54384 Element 6146954 or 4586276 ×1
Wedge Plate 6 x 3 Right Lime Part 54383 Element 6258410 or 6146953 ×1

Technic Pins 8 pieces

Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1
Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×1
Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2
Technic Pin 3/4 Tan Part 32002 Element 6663097 or 6013938 1 spare in the box ×4

Bars, Ladders and Fences 6 pieces

Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×1
Lever Small Base with Black Lever Blue Part 298c02 Element 4296152 or 4163988 1 spare in the box ×1
Bar Holder with Clip Dark Bluish Gray Part 11090 Element 6336970 or 6015890 ×1
Lever Small Base with Black Lever Red Part 298c02 Element 74335 1 spare in the box ×1
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Orange Part 58176 Element 6507868 or 6171764 ×2

Bricks Special 6 pieces

Brick Special 1 x 2 with Vertical Clip [Open O Clip] Black Part 30237b Element 6330197 or 6092876 ×1
Brick Special 1 x 4 with Groove Black Part 2653 Element 265326 ×1
Bracket 3 x 2 x 1 1/3 with Pin Bottom Dark Bluish Gray Part 18671 Element 6099909 ×1
Brick Special 1 x 4 with 4 Studs on One Side Light Bluish Gray Part 30414 Element 4211636 ×2
Brick Special 2 x 4, with 2 x 2 Brick with Top Pin and 1 x 2 Side Plates Light Bluish Gray Part 30592 Element 6301425 or 6278504 ×1

Rock 6 pieces

Rock 1 x 1 Crystal 5 Point Trans-Dark Blue Part 30385 Element 6507864 or 6236962 ×2
Rock / Boulder, Vertical Half Trans-Orange Part 23447 Element 6159464 ×4

Technic Bushes 6 pieces

Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×1
Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×3
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×2

Transportation - Land 6 pieces

Roll Cage 6 x 4 x 3 1/3 Black Part 64450 Element 6240526 or 4539385 ×1
Wheel Arch, Mudguard, 1 1/2 x 6 x 1 [Arch Extended] Black Part 62361 Element 6530052 or 6476010 ×2
Seat / Chair 2 x 2 with Center Sprue Mark Blue Part 4079b Element 407923 ×1
Wheel Holder 2 x 2 Thin with Clips, Plane Single Light Bluish Gray Part 2415 Element 6321198 or 4211351 ×2

String, Bands and Reels 5 pieces

String Cord Thin (0.5mm) 50cm Black Part 56823c50 Element 6530026 or 6489925 ×1
String Reel 2 x 2 Winch Holder Black Part 2584 Element 6465125 or 6163507 ×1
String Reel 2 x 2 Winch Drum Light Bluish Gray Part 2585 Element 4211370 ×1
Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×2

Supports, Girders and Cranes 5 pieces

Crane Jaw Curved Dark Bluish Gray Part 91347 Element 6172224 or 6097000 ×4
Hook with Towball Dark Bluish Gray Part 30395 Element 30395199 or 6347464 ×1

Tiles Round and Curved 4 pieces

Tile Round 1 x 1 Trans-Green Part 98138 Element 6514194 or 6274742 1 spare in the box ×2
Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×2

Transportation - Sea and Air 4 pieces

Propeller 3 Blade 9 Diameter with Pin Hole, Recessed Center Black Part 15790 Element 6055123 ×1
Propeller 4 Blade 5 Diameter with Rounded Ends, Open Hub Black Part 2479 Element 247926 ×1
Technic Pin with Dual Wheels Holder Light Bluish Gray Part 61483 Element 6331440 or 4519013 ×1
Tail Shuttle Lime Part 6239 Element 6495623 or 6115237 ×1

Windows and Doors 4 pieces

Window 1 x 2 x 2 Plane, Hollow Studs, Single Hole Top and Bottom for Glass Lime Part 60032 Element 6146952 ×2
Glass for Window 1 x 2 x 2 Flat Trans-Light Blue Part 60601 Element 6524698 or 6514137 ×2

Panels 3 pieces

Panel 1 x 2 x 1 [Rounded Corners] Light Bluish Gray Part 4865b Element 6146223 ×1
Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Lime Part 87552 Element 6146956 or 4625625 ×2

Technic Axles 3 pieces

Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×2
Technic Axle 8 with Stop Dark Bluish Gray Part 55013 Element 4499858 ×1

Technic Beams 3 pieces

Technic Beam 1 x 11.5 Double Bent Thick Yellow Part 32009 Element 6271150 or 6257104 ×1
Technic Beam 1 x 7 Thin Yellow Part 32065 Element 4114672 ×2

Technic Bricks 3 pieces

Technic Brick 1 x 4 [3 Pin Holes] Light Bluish Gray Part 3701 Element 4211441 ×1
Technic Brick 1 x 2 [1 Pin Hole] Lime Part 3700 Element 6132372 ×2

Windscreens and Fuselage 3 pieces

Aircraft Fuselage Curved Forward 6 x 8 Bottom Dark Bluish Gray Part 11295 Element 6031896 ×1
Aircraft Fuselage Curved Forward 6 x 8 Top Lime Part 11293 Element 6146955 ×1
Glass for Aircraft Fuselage Curved Forward 6 x 8 Top Trans-Light Blue Part 11297 Element 6592890 or 6239384 ×1

Bricks Wedged 2 pieces

Brick Wedged, Curved 6 x 2 Left, Inner Ridges Dark Bluish Gray Part 41748 Element 6063681 or 4210772 ×1
Brick Wedged, Curved 6 x 2 Right, Inner Ridges Dark Bluish Gray Part 41747 Element 6063685 or 4210771 ×1

Minifig Accessories 2 pieces

Equipment Camera with Side Sight [aka Space Gun] Black Part 4360 Element 436026 ×1
Equipment Radio [Extended Handle, Expanded Speaker Grille] Black Part 19220 Element 6170545 or 6100054 ×1

Technic Connectors 2 pieces

Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×1
Technic Pin Connector Round with 4 Clips Black Part 90202 Element 6320293 or 6052369 ×1

Bricks Round and Cones 1 piece

Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 ×1

Containers 1 piece

Box / Crate with Handholds 3 x 4 x 1 2/3 Reddish Brown Part 30150 Element 4211185 ×1

Minifig Shields, Weapons, & Tools 1 piece

Tool Ice Axe [3-Rib Handle] Light Bluish Gray Part 18738 Element 6269939 or 6088382 1 spare in the box ×1

Stickers 1 piece

Sticker Sheet for Set 60123-1 [No Color/Any Color] Part 24538 Element 6133182 ×1

Technic Gears 1 piece

Technic Gear 8 Tooth [Reinforced] Dark Bluish Gray Part 10928 Element 6631413 or 6012451 ×1

Minifigures 3 figures

Volcano Explorer, Man, Olive Green Jumpsuit with Straps, White Hard Hat with Visor, Breathing Apparatus, Airtanks, Stubble Minifigure, checked as a whole figure ×1
Volcano Explorer, Man, Olive Green Jumpsuit with Straps, White Helmet with Visor, Sunglasses Minifigure, checked as a whole figure ×1
Volcano Explorer, Woman, Olive Green Shirt with Rope, White Hard Hat with Hair 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.