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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 Sub-Surface Scooter

Checking

4791 Alpha Team Sub-Surface Scooter

39 pieces in 28 part and color combinations, plus 1 minifigure.

LEGO counts 43 pieces. This inventory comes from a separate parts catalog and lists 45, including the 6 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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

Bricks Round and Cones 6 pieces

  • Brick Round 2 x 2 Dome Top, Blocked Open Stud, No Bottom Axle Holder Black Part 30367a ×2
  • Brick Round 2 x 2 x 2 Robot Body, Axle Holder 'X' Orientation Black Part 30361b ×2
  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×2

Technic Pins 4 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×2

Plates 3 pieces

  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×2
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×1

Plates Special 3 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×1

String, Bands and Reels 3 pieces

  • String Cord Thin (0.5mm) 50cm Black Part 56823c50 Element 6530026 or 6489925 ×1
  • String Reel 1 x 4 x 2 Drum with Friction Spokes Black Part 30635 Element 4154158 ×1
  • String Reel 1 x 4 x 2 Holder with 2 Technic Pins Dark Gray Part 30636 Element 4154159 ×1

Bricks Curved 2 pieces

  • Brick Curved 1 x 4 with Sloped Ends and Two Top Studs Trans-Neon Green Part 40996 Element 4154081 ×1
  • Brick Curved 2 x 2 with Lip, No Studs Yellow Part 30602 Element 6409627 or 4144412 ×1

Bricks Wedged 2 pieces

  • Brick Wedged, Curved 6 x 2 Left with Hose, Grill, and Hatch Print Yellow Part 41748pr0007 Element 4162485 ×1
  • Brick Wedged, Curved 6 x 2 Right with Hose, Grille and Hatch Print Yellow Part 41747pr0008 Element 4162483 ×1

Flags, Banners and Signs 2 pieces

  • Flag 2 x 2 Square [Thin Clips] Black Part 2335 Element 4523405 or 233526 ×2

Minifig Accessories 2 pieces

  • Minifig Footwear Flipper [Thin] Black Part 59275 ×2

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Spear Gun with Rounded Trigger and Thin Spear Base Dark Gray Part 30088 Element 4141767 ×2

Plates Wedged 2 pieces

  • Wedge Plate 4 x 2 Left Black Part 41770 Element 4161332 ×1
  • Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 ×1

Tiles Special 2 pieces

  • Tile Special 1 x 2 with Handle Light Gray Part 2432 Element 243202 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×1

Transportation - Sea and Air 2 pieces

  • Propeller 3 Blade 3 Diameter with Axle Cross Black Part 6041 Element 604126 ×2

Bricks Special 1 piece

  • Brick Special 1 x 4 with 4 Studs on One Side Black Part 30414 Element 4162443 ×1

Supports, Girders and Cranes 1 piece

  • Hook with Towball Dark Gray Part 30395 Element 4140702 ×1

Technic Bricks 1 piece

  • Technic Brick 4 x 6 with 2 x 4 Opening Black Part 32531 Element 6456527 or 4162508 ×1

Transportation - Land 1 piece

  • Grille 6 x 4 x 3 [2 Pins & 2 Pin Holes] Yellow Part 30632 Element 4153073 ×1

Minifigures 1 figure

  • Flex with Trans-Dark Blue Diving Mask 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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