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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.

Structures Set

Checking

9618 Structures Set

443 pieces in 61 part and color combinations.

LEGO counts 463 pieces. This inventory comes from a separate parts catalog and lists 443; 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

Light Gray 126 pieces

  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Gray Part 6553 Element 655302 ×2
  • Technic Axle Connector Ridged [with + Hole + Orientation] Light Gray Part 6538a ×20
  • Technic Axle Connector with Axle Hole Light Gray Part 32039 Element 4106469 ×6
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×8
  • Technic Axle and Pin Connector Angled #2 - 180° Light Gray Part 32034 Element 4107830 ×4
  • Technic Axle and Pin Connector Perpendicular Light Gray Part 6536 Element 4173667 or 653602 ×6
  • Technic Beam 1 x 3 Thin Light Gray Part 6632 Element 4107825 ×4
  • Technic Beam 1 x 4 Thin with Stud Connector Light Gray Part 2825 Element 4107133 or 282502 ×2
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×24
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a ×24
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 ×2
  • Technic Gear Rack 1 x 8 with Holes Light Gray Part 6630 Element 663002 ×2
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 ×10
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×12

Black 116 pieces

  • Rubber Band Medium (Square Cross Section) Black Part 71156 Element 71156 ×2
  • String with End Studs 41L Overall Black Part 14226c41 Element 6096957 or 6074034 ×4
  • Technic Axle 10 Black Part 3737 Element 373726 ×2
  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×14
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×24
  • Technic Axle 4 Black Part 3705 Element 370526 ×14
  • Technic Axle 5 Black Part 32073 Element 4114740 ×16
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Axle 8 Black Part 3707 Element 370726 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×32
  • Technic Shock Absorber 9.5L with Soft Spring Black Part 2909c03 Element 6083112 or 6028683 ×2

Red 109 pieces

  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×28
  • Brick 2 x 4 Red Part 3001 Element 300121 ×24
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×2
  • Brick Round 2 x 2 with Axle Hole Red Part 3941 Element 614321 or 394121 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×4
  • Storage Bin, Dacta, Small Red Part upn0032 ×1
  • Technic Brick 1 x 12 [11 Pin Holes] Red Part 3895 Element 389521 ×4
  • Technic Brick 1 x 16 [15 Pin Holes] Red Part 3703 Element 370321 ×16
  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×8
  • Technic Brick 1 x 4 [3 Pin Holes] Red Part 3701 Element 370121 ×4
  • Technic Brick 1 x 6 [5 Pin Holes] Red Part 3894 Element 389421 ×8
  • Technic Brick 1 x 8 [7 Pin Holes] Red Part 3702 Element 370221 ×4

Blue 58 pieces

  • Plate 1 x 10 Blue Part 4477 Element 447723 ×4
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×6
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×2
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×4
  • Plate 1 x 8 Blue Part 3460 Element 346023 ×2
  • Plate 2 x 10 Blue Part 3832 Element 383223 ×8
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×2
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×2
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×2
  • Technic Axle and Pin Connector Angled #1 Blue Part 32013 Element 6332570 or 4107797 ×6
  • Technic Axle and Pin Connector Angled #3 - 157.5° Blue Part 32016 Element 6261397 or 6177396 ×4
  • Technic Axle and Pin Connector Angled #6 - 90° Blue Part 32014 Element 4112205 ×6
  • Technic Plate 2 x 4 [3 Holes] Blue Part 3709 Element 370923 ×4
  • Technic Plate 2 x 8 [7 Holes] Blue Part 3738 Element 373823 ×4
  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×2

[No Color/Any Color] 20 pieces

  • Sheet for Dacta Structures Set 9618-1 [No Color/Any Color] Part 71740 Element 4112208 ×2
  • Stick with 3 holes [Dacta Structures Set] [No Color/Any Color] Part 76177 Element 4118955 ×18

Dark Gray 6 pieces

  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×6

Green 6 pieces

  • Baseplate 16 x 32 Green Part 3857 Element 4219615 or 274828 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Green Part 32064a Element 6206248 or 4233489 ×4

Trans-Clear 2 pieces

  • Storage / Sorting Tray, Dacta, 6 Compartment for Dacta Small Bin Trans-Clear Part 167916 ×1
  • Storage Bin Lid, Dacta, 19 x 24 Trans-Clear Part 71082 ×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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