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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.

Nexo Knights: Build Your Own Adventure

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9781465460875 Nexo Knights: Build Your Own Adventure

73 pieces in 35 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.

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

Plates Special 15 pieces

  • Plate Special 1 x 2 with Clip Horizontal on Side Black Part 11476 Element 6313116 or 6132731 ×2
  • Plate Special, 2 x 2 Studs and Handle, Closed Ends (Mech Chest Plate / Armor) Dark Blue Part 27167 Element 6569025 or 6430974 ×1
  • Cockpit 4 x 2 x 3 with Pin Hole, 2 Towballs and 2 Clips Dark Bluish Gray Part 27168 Element 6166882 ×1
  • Plate Special 1 x 2 with 5.9mm Towball Socket and Towball Dark Bluish Gray Part 14419 Element 6414554 or 6338166 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Dark Bluish Gray Part 10247 Element 6047417 ×1
  • Plate Special 2 x 2 with 2 Pins Dark Bluish Gray Part 15092 Element 6284702 or 6066952 ×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 ×2
  • Plate Special 1 x 2, Top Clip [Split] Light Bluish Gray Part 92280 Element 4598526 ×2

Bricks Sloped 12 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×2
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Blue Part 54200 Element 4504374 or 4502092 1 spare in the box ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×2

Plates Round Curved and Dishes 12 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×12

Plates 9 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Blue ×2
  • Plate 1 x 2 Dark Blue Part 3023 Element 6554191 or 4528981 Also in Black ×4
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×3

Technic Axles 4 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×2
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×1
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1

Technic Connectors 3 pieces

  • Technic Axle and Pin Connector Perpendicular Double Split Light Bluish Gray Part 41678 Element 4211889 ×3

Technic Pins 3 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 with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×1

Bricks Curved 2 pieces

  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 ×2

Large Buildable Figures 2 pieces

  • Large Figure Hand, Fist with Axle Hole, 4 Fingers Black Part 93575 Element 4612482 ×2

Minifig Shields, Weapons, & Tools 2 pieces

  • Tool Hammer / Mallet Large Black Part 4522 Element 452226 ×1
  • Tool Screwdriver and Spanner / Wrench Black Part 4006 Element 6034000 or 4569095 ×1

Projectiles / Launchers 2 pieces

  • Launcher, Weapon Rapid Shooter Six Barrel, 3 Fingers Black Part 18588 Element 6100104 ×1
  • Launcher Trigger, Weapon Rapid Shooter, Flat Axle Hole Light Bluish Gray Part 18587 Element 6097090 ×1

Technic Beams Special 2 pieces

  • Technic Beam 1 x 2 with Ball Joint Angled Dark Bluish Gray Part 50923 Element 4503381 or 4289258 ×2

Hinges, Arms and Turntables 1 piece

  • Hinge Plate 2 x 2 Locking with 1 Finger on Top Orange Part 92582 Element 6167290 ×1

Technic Gears 1 piece

  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×1

Technic Steering, Suspension and Engine 1 piece

  • Technic Steering Gear with 3 Towball Joints, Compact Dark Bluish Gray Part 15460 Element 6359227 or 6055629 ×1

Tiles Round and Curved 1 piece

  • Tile Round 2 x 2 with Nexo Knights Ammunition Print Light Bluish Gray Part 14769pr1030 Element 6132542 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 6 x 4 x 1 Hexagonal with Handle Dark Blue Part 27262 Element 6166852 ×1

Minifigures 1 figure

  • Robin Underwood with Short Legs and Helmet with Plume 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.