Free tool

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 Clock

Checking

4193351 Alpha Team Clock

27 pieces in 17 part and color combinations, plus 1 minifigure.

The piece count includes the 5 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.

Show

Piece checklist

Black 8 pieces

  • Equipment Space Scanner Black Part 30035 Element 4248831 or 4143705 ×1
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×2
  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×2
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1

Dark Gray 5 pieces

  • Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers On Ends, without Hole, 9 Teeth Dark Gray Part 30554a ×4
  • Plate 1 x 2 Dark Gray Part 3023 Element 4111983 or 302327 ×1

Light Gray 4 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×2
  • Technic Gear 40 Tooth Light Gray Part 3649 Element 364902 ×2

Yellow 4 pieces

  • Clock Unit with Black Ring, Alpha Team, Red Numbers Print Yellow Part upn0438c09 ×1
  • Equipment Support Foot Platform with Black Danger Stripes and Hose Print Yellow Part 41525pr0001 Element 4162149 ×1
  • Hinge 1 x 3 Locking with 2 Fingers and Claw End, 9 Teeth Yellow Part 41529 Element 4159555 ×2

Trans-Neon Green 3 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 ×2

Green 2 pieces

  • Plant, Sea Grass Green Part 30093 Element 4568215 or 4163425 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Green Part 4032a Element 403228 ×1

Trans-Neon Orange 1 piece

  • Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a ×1

Minifigures 1 figure

  • Charge 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.