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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.

Spider Slayer

Checking

3038 Spider Slayer

365 pieces in 77 part and color combinations, plus 1 minifigure.

LEGO counts 366 pieces. This inventory comes from a separate parts catalog and lists 368, including the 3 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

Technic Pins 88 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×9
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×26
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Blue Part 32054 Element 4140800 or 4107741 ×4
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 1 spare in the box ×32
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×13
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 1 spare in the box ×4

Technic Beams 71 pieces

  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×6
  • Technic Beam 1 x 6 Thin Black Part 32063 Element 6163980 or 4114634 ×2
  • Technic Beam 1 x 7 Thin Black Part 32065 Element 6271573 or 6253293 ×12
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black Part 6629 Element 6279881 or 4119800 ×17
  • Technic Beam 1 x 11.5 Double Bent Thick Dark Turquoise Part 32009 Element 4114012 or 4112276 ×2
  • Technic Beam 1 x 7 Thin Dark Turquoise Part 32065 Element 4114202 ×24
  • Technic Beam 3 x 3 L-Shape Thin Light Gray Part 32056 Element 4111941 ×4
  • Technic Beam 1 x 11.5 Double Bent Thick Purple Part 32009 Element 4114447 or 4112277 ×2
  • Technic Beam 1 x 7 Thin Purple Part 32065 Element 4114201 ×2

Technic Axles 50 pieces

  • 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 ×18
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×13
  • Technic Axle 5 Black Part 32073 Element 4114740 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×6
  • Technic Axle 8 Black Part 3707 Element 370726 ×3
  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×3

Technic Connectors 40 pieces

  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×10
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×7
  • Technic Axle and Pin Connector Angled #3 - 157.5° Black Part 32016 Element 6261386 or 4107082 ×7
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×6
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×5
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 ×2
  • Technic Axle Connector with Axle Hole Light Gray Part 32039 Element 4106469 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Light Gray Part 32015 Element 4106378 ×1

Technic Bushes 29 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×6
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×23

Technic Bricks 18 pieces

  • Technic Brick 1 x 12 [11 Pin Holes] Black Part 3895 Element 389526 ×2
  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×2
  • Technic Brick 1 x 16 [15 Pin Holes] Black Part 3703 Element 370326 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×6
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×1

Tubes and Hoses 8 pieces

  • Hose Rigid 3mm D. 29L / 23.2cm Dark Turquoise Part 75c29 ×2
  • Hose, Ribbed 7mm D. 4L / 3.2cm Dark Turquoise Part 78c04 Element 4111954 ×5
  • Hose, Ribbed 7mm D. 16L / 12.8cm Purple Part 78c16 Element 4111945 ×1

Wheels and Tyres 8 pieces

  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×6
  • Wheel with Split Axle hole Black Part 3482 Element 4279396 or 4199226 ×1
  • Tyre 30 x 10.5 Offset Tread Light Gray Part 2346 Element 4112832 ×1

Plates 7 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×5
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×1
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×1

Plates Round Curved and Dishes 7 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Gray Part 2654 Element 265402 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×1

Plates Special 6 pieces

  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×3
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×2
  • Technic Plate 2 x 6 [5 Holes] Black Part 32001 Element 3200126 ×1

Tiles 5 pieces

  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×1

Bricks Curved 4 pieces

  • Brick Curved 2 x 4 Double, No Studs, without Groove Black Part 6192a Element 4501533 or 4227858 ×4

String, Bands and Reels 4 pieces

  • Rubber Band Small 13mm (Square Cross Section) Black Part 71509 Element 4141606 or 4107153 2 spares in the box ×4

Technic Special 4 pieces

  • Technic Seat / Chair [3 x 2 Base] Dark Turquoise Part 2717 Element 4111957 ×1
  • Technic Cam Light Gray Part 6575 Element 657502 ×2
  • Technic Disc 3 x 3 White Part 2723 Element 6564906 or 6296187 ×1

Tiles Special 4 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Black Part 2555 Element 255526 ×4

Electronics 3 pieces

  • Battery Box, 9V Small [Complete Assembly] Black Part 4760c01 Element 4109849 ×1
  • Wire with Brick 2 x 2 x 2/3 Pair, 15L Black Part 5306bc015 Element 75565 ×1
  • Motor, 9V Mini [Old Style] Light Gray Part 71427c01 Element 4107786 ×1

Projectiles / Launchers 2 pieces

  • Projectile, Technic Competition Arrow, Beam Shaft with Solid Black Rubber End Yellow Part 76110c01 Element 4114419 ×2

Tiles Round and Curved 2 pieces

  • Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×2

Bricks 1 piece

  • Brick 2 x 4 Black Part 3001 Element 300126 ×1

Bricks Sloped 1 piece

  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×1

Minifigs 1 piece

  • Technic Figure Cyber Person, Black Legs, Mechanical Arms, Yellow Head, Cyborg Eyepiece [No Color/Any Color] Part 2698c01pr0007 ×1

Stickers 1 piece

  • Sticker Sheet for Sets 3038-1, 8266-1 [No Color/Any Color] Part 71824 Element 4114354 ×1

Technic Steering, Suspension and Engine 1 piece

  • Technic Shock Absorber 9.5L with Soft Spring Dark Gray Part 2909c03 Element 75348 ×1

Minifigures 1 figure

  • Dark Turquoise Cyber Strikers Driver 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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