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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-Man Mech

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76146 Spider-Man Mech

157 pieces in 65 part and color combinations, plus 1 minifigure.

LEGO counts 152 pieces. This inventory comes from a separate parts catalog and lists 160, 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Red 43 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Red Part 99780 Element 6089698 ×2
  • Bracket 1 x 2 - 2 x 2 Red Part 44728 Element 6117974 or 6048856 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Red Part 11477 Element 6029946 ×2
  • Brick Curved 2 x 2 x 2/3 Red Part 15068 Element 6105976 ×6
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Red Part 61409 Element 4540382 or 4535102 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Red Part 85984 Element 4651524 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×1
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Red Part 4871 Element 487121 ×1
  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Red Part 2540 Element 4140585 or 254021 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Red Part 60470b Element 6360036 or 4556153 ×1
  • Plate Special 1 x 2 with Pin Hole Underneath Red Part 18677 Element 6168634 or 6109459 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Red Part 10247 Element 6014616 ×2
  • Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor) Red Part 27167 Element 6525960 or 6288458 ×1
  • Technic Plate 2 x 4 [3 Holes] Red Part 3709 Element 370921 ×3
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 2 spares in the box ×4
  • Tile Round 2 x 2 with Spider-Man Logo Print Red Part 14769pr1149 Element 6288503 ×1
  • Tile Special 2 x 2 Corner with Cut Corner - Facet Red Part 27263 Element 6217194 ×4
  • Tile Special 2 x 2 Inverted Red Part 11203 Element 6013868 ×1
  • Wedge Plate 2 x 2 Left Red Part 24299 Element 6141552 ×1
  • Wedge Plate 2 x 2 Right Red Part 24307 Element 6141553 ×1

Blue 34 pieces

  • Bracket 1 x 2 - 1 x 2 Blue Part 99781 Element 6163471 ×4
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Blue Part 11477 Element 6055065 ×4
  • Brick Curved 4 x 1 Double, No Studs Blue Part 93273 Element 4649773 ×2
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Blue Part 15672 Element 6069163 ×2
  • Plate 1 x 1 Blue Part 3024 Element 302423 1 spare in the box ×4
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×7
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×1
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Blue Part 18674 Element 6194417 ×6
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×2

Dark Bluish Gray 34 pieces

  • Bar 2L with Towball Dark Bluish Gray Part 22484 Element 6364352 or 6360117 ×2
  • Bar Holder with Clip Dark Bluish Gray Part 11090 Element 6336970 or 6015890 ×10
  • Bracket 1 x 1 - 1 x 1 Inverted Dark Bluish Gray Part 36840 Element 6225494 Also in Black ×2
  • Brick Curved Inverted 2 x 1 Dark Bluish Gray Part 24201 Element 6215212 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Bluish Gray Part 35480 Element 6221607 ×2
  • Plate Special 1 x 2 with 5.9mm Centre Side Towball Dark Bluish Gray Part 14417 Element 6414560 or 6338160 ×4
  • Plate Special 1 x 2 with 5.9mm Towball Socket and Towball Dark Bluish Gray Part 14419 Element 6414554 or 6338166 ×4
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×2
  • Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×1
  • Technic Steering Gear with 3 Towball Joints, Compact Dark Bluish Gray Part 15460 Element 6359227 or 6055629 ×1
  • Tile Special 2 x 2 Inverted Dark Bluish Gray Part 11203 Element 6013082 ×2

White 17 pieces

  • Bar Holder with Clip White Part 11090 Element 6341465 or 6136789 ×2
  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×2
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×4
  • Web Effect Handcuffs White Part 36083b ×1
  • Web Effect Large Bar on Back Handles on Sides White Part 36083e ×1
  • Web Effect Long and Narrow Bars at Both Ends White Part 36083a ×2
  • Web Effect Medium Bar on Back White Part 36083c ×1
  • Web Effect Small Short Bar on Front and Back White Part 36083d ×2
  • Web Effect Two Branches Bars on Each End White Part 36083f ×2

Light Bluish Gray 14 pieces

  • Bar Holder with Hole and Bar Handle Light Bluish Gray Part 23443 Element 6343976 or 6152107 ×4
  • Bracket 1 x 1 - 1 x 1 Light Bluish Gray Part 36841 Element 6248078 or 6227012 ×2
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×2
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×6

Flat Silver 7 pieces

  • Arm Mechanical with Clip [Thick Support] Flat Silver Part 98313 Element 6262193 or 6008483 ×2
  • Insect Body Part, Leg / Tail / Tentacle / Claw Flat Silver Part 15064 Element 6344737 or 6292151 ×4
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Flat Silver Part 99563 Element 6208446 ×1

Black 5 pieces

  • Bracket 1 x 1 - 1 x 1 Inverted Black Part 36840 Element 6234695 Also in Dark Bluish Gray ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, without Groove Black Part 44567b Element 6266244 ×1
  • Panel 1 x 2 x 1 with Rounded Corners and Central Divider Black Part 93095 Element 6640376 or 6115086 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1

Trans-Clear 2 pieces

  • Plate Special Round 1 x 1 with Hollow Stud and Bar on Underside Trans-Clear Part 25893 Element 6321083 or 6153264 1 spare in the box ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 76146-1 [No Color/Any Color] Part 66558 Element 6288504 ×1

Minifigures 1 figure

  • Spider-Man with Dark Red Webbing and Plain Blue Legs 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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