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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.

Kai's Blade Cycle

Checking

71734 Kai's Blade Cycle

46 pieces in 26 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 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.

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Piece checklist

Technic Pins 7 pieces

  • Technic Pin without Friction Ridges Lengthwise Yellow Part 3673 Element 6331822 1 spare in the box ×7

Bricks Curved 5 pieces

  • Brick Curved 3 x 1 No Studs Black Part 50950 Element 4251161 ×2
  • Brick Curved 4 x 1 Double, No Studs Dark Red Part 93273 Element 6000752 ×2
  • Brick Arch 1 x 4 Light Bluish Gray Part 3659 Element 4211435 ×1

Plates Special 5 pieces

  • Plate Special 1 x 2, Top Clip [Open O] Light Bluish Gray Part 44861 Element 6326078 ×2
  • Plate Special 1 x 2 with Three Teeth [Tri-Tooth] Pearl Gold Part 15208 Element 6207764 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side Yellow Part 11476 Element 6313121 or 6179329 ×1

Minifig Shields, Weapons, & Tools 4 pieces

  • Weapon Pike / Spear Flat End Flat Silver Part 93789 Element 4611883 ×1
  • Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Flat Silver Part 21459 Element 6116593 ×1
  • Weapon Sword Katana with Dragon Guard (The Sword of Fire) Pearl Gold Part 93055 Element 6587954 or 6096099 ×2

Wheels and Tyres 4 pieces

  • Wheel Rim 24 x 7 with Black Tyre Pearl Gold Part 74214 Element 6344199 ×4

Transportation - Land 3 pieces

  • Handlebars Black Part 30031 Element 3003126 ×1
  • Vehicle Body, Motorcycle / Quadricycle Frame Red Part 70682 Element 6320082 ×2

Bars, Ladders and Fences 2 pieces

  • Bar Holder with Hole and Bar Handle Pearl Gold Part 23443 Element 6296657 or 6197509 ×2

Bricks Round and Cones 2 pieces

  • Brick Round 1 x 1 Open Stud Trans-Neon Green Part 3062b Element 6514237 or 6238675 ×2

Bricks Sloped 2 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×2

Bricks Special 2 pieces

  • Brick Special 1 x 4 Palisade [aka Log] Reddish Brown Part 30137 Element 4211181 ×2

Bricks Wedged 2 pieces

  • Brick Wedged, Curved 2 x 3 x 2/3 Two Studs, Wing End Black Part 47456 Element 4285883 or 4218569 ×1
  • Brick Wedged, Curved 4 x 3 No Studs with Headlights, Yellow Flames, Flaming Skull Print Red Part 64225pr0008 Element 6341730 ×1

Plates 2 pieces

  • Plate 2 x 4 Dark Orange Part 3020 Element 4535928 or 4164449 ×1
  • Plate 4 x 6 Tan Part 3032 Element 4114001 ×1

Tiles 2 pieces

  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×2

Animals / Creatures 1 piece

  • Animal, Snake, Small Green Part 30115 Element 6286433 or 4249063 ×1

Plants & Trees 1 piece

  • Plant, Round 1 x 1 - 3 Bamboo Leaves Green Part 30176 Element 6270003 or 6248461 ×1

Projectiles / Launchers 1 piece

  • Launcher, 1 x 4 with 1 x 2 Plate with Pin Hole and Bucket (Catapult) Black Part 88289 Element 6225386 ×1

Technic Connectors 1 piece

  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×1

Minifigures 2 figures

  • Serpentine Rattla - Sand Blue Minifigure, checked as a whole figure ×1
  • Kai (Legacy) 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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