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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.

Alpha Team Command Sub

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4794 Alpha Team Command Sub

178 pieces in 70 part and color combinations, plus 2 minifigures.

The official piece count includes the 10 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.

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Piece checklist

Hinges, Arms and Turntables 25 pieces

  • Arm Grabber Angled Black Part 30542 Element 4143242 ×2
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×5
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers On Ends, without Hole, 9 Teeth Dark Gray Part 30554a ×8
  • Hinge Panel 1 x 4 x 3 2/3 with 6 holes, 2 studs on top, Locking 2 Fingers Trans-Brown Part 30625 Element 4162891 ×1
  • Hinge 1 x 2 Locking with 2 Fingers and Towball Socket, 9 Teeth Yellow Part 30396 Element 6146964 or 4163290 ×1
  • Hinge 1 x 3 Locking with 2 Fingers and Claw End, 9 Teeth Yellow Part 41529 Element 4159555 ×4
  • Technic Rotation Joint Ball with Arm - Pin and Hole Ends Yellow Part upn0268c01 Element 4162243 ×4

Technic Bricks 16 pieces

  • Technic Brick 1 x 16 [15 Pin Holes] Black Part 3703 Element 370326 ×2
  • Technic Brick 4 x 6 with 2 x 4 Opening Black Part 32531 Element 6456527 or 4162508 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Light Gray Part 32064a Element 4233488 or 4117071 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×10

Transportation - Sea and Air 14 pieces

  • Propeller 3 Blade 3 Diameter with Axle Cross Black Part 6041 Element 604126 ×6
  • Propeller 8 Blade 5 Diameter Trans-Neon Green Part 41530 Element 6109915 or 4159686 ×2
  • Technic Cylinder 4 x 4 with Pin Holes and Centre Bar, Closed Sides on Bar Yellow Part 41531 Element 6100888 or 4270872 ×6

Plates 13 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 1 x 2 Dark Gray Part 3023 Element 4111983 or 302327 ×3
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×2

Technic Pins 13 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×6
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×6

Bricks Sloped 11 pieces

  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×2
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Black Part 4460a ×4
  • Brick Sloped 45° 2 x 4 with Control Panel and Radar Print Dark Gray Part 3037pr0010 Element 4162910 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×2
  • Brick Sloped Inverted 45° 6 x 4 Double with Recessed Center Yellow Part 30183 Element 4117059 ×1

Bricks 10 pieces

  • Brick 1 x 2 Dark Gray Part 3004 Element 4113909 or 300427 ×4
  • Brick 1 x 4 Dark Gray Part 3010 Element 4114308 or 301027 ×1
  • Brick 2 x 4 Light Gray Part 3001 Element 4116259 or 300102 ×1
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×2
  • Brick 2 x 2 Corner Yellow Part 2357 Element 235774 or 235724 ×2

Bricks Curved 8 pieces

  • Brick Curved Inverted 6 x 1 Dark Gray Part 42023 Element 4160410 ×4
  • Brick Curved 6 x 1 Yellow Part 42022 Element 4160392 ×2
  • Brick Curved 6 x 1 with Hydraulic Hose and Black Chevrons Print Yellow Part 42022pr0004 Element 4163292 ×2

Plates Special 8 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Black Part 2436 Element 4282746 or 243626 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×4
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×1

Tiles Special 7 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×7

Transportation - Land 7 pieces

  • Grille 6 x 4 x 3 [2 Pins & 2 Pin Holes] Black Part 30632 Element 4153074 ×1
  • Grille 1 x 4 [Two Pins] Yellow Part 30622 Element 4153120 ×4
  • Seat / Chair 2 x 2 Yellow Part 4079 ×2

Bars, Ladders and Fences 6 pieces

  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×4
  • Lever Small Base with Black Lever Yellow Part 298c02 Element 74156 ×2

Bricks Special 6 pieces

  • Brick Special 2 x 2 x 2 with Rotation Joint Socket and Rear Pin Hole Black Part 41533 Element 4270960 or 4162241 ×2
  • Brick Special 2 x 2 with Pin and Axle Hole Dark Gray Part 6232 Element 4108048 ×3
  • Brick Special 2 x 4 with Pins Dark Gray Part 6249 Element 4143669 or 4100411 ×1

Bricks Round and Cones 5 pieces

  • Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole Dark Gray Part 6222 Element 4114075 ×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-Red Part 3062b Element 6514235 or 6238673 ×2

Bricks Wedged 5 pieces

  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Yellow Part 41748 Element 4271087 or 4248767 ×2
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Yellow Part 41747 Element 4271084 or 4248764 ×2
  • Brick Wedged, Curved Inverted 8 x 6 x 2 Cockpit Yellow Part 42021 Element 4161251 ×1

Minifig Accessories 5 pieces

  • Equipment Underwater Scooter, 2 Bar Handles, Octagonal End Black Part 30092 Element 4141688 or 4109763 ×1
  • Minifig Footwear Flipper [Thin] Black Part 59275 ×2
  • Equipment Support Foot Platform with Black Danger Stripes and Hose Print Yellow Part 41525pr0001 Element 4162149 ×2

Minifig Shields, Weapons, & Tools 4 pieces

  • Tool Chainsaw Blade Dark Gray Part 6117 Element 4109789 ×2
  • Weapon Spear Gun with Rounded Trigger and Thin Spear Base Dark Gray Part 30088 Element 4141767 ×2

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×4

Technic Axles 3 pieces

  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×3

Windscreens and Fuselage 3 pieces

  • Windscreen 8 x 6 x 2 Curved Trans-Brown Part 41751 Element 4161245 ×2
  • Windscreen 8 x 6 x 2 Curved with Silver & Yellow Hose and Window Print Trans-Brown Part 41751pr0003 Element 4162415 ×1

Containers 1 piece

  • Container / Box, Open Ended 4 x 4 x 4 with 1 Hinge Finger Each End [Plain] Dark Gray Part 30639 Element 4153673 ×1

Minifig Headwear 1 piece

  • Hat Rag Wrap / Bandana Black Part 2543 Element 4556983 or 4144526 ×1

Panels 1 piece

  • Panel 1 x 2 x 1 with Ogel Control Panel Print Trans-Dark Blue Part 4865apr0007 Element 4162792 ×1

String, Bands and Reels 1 piece

  • Rubber Band 15mm [Square Cross Section] Yellow Part 23229 Element 4125669 or 4124335 3 spares in the box ×1

Technic Connectors 1 piece

  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×1

Minifigures 2 figures

  • Crunch with Trans-Dark Blue Diving Mask Minifigure, checked as a whole figure ×1
  • Radia with White 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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