Free tool

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.

Ninji

Checking

71386-3 Ninji

23 pieces in 15 part and color combinations.

This inventory is incomplete: it lists 1 fewer pieces than the piece count.

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

Black 13 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×4
  • Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 Sides Black Part 67329 Element 6308883 ×2
  • Feet, 2 x 2 x 2/3 with 4 Studs on Top Black Part 66858 Element 6334103 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 ×2
  • Tile 2 x 2 with Eyes and Red Buttons Print (Ninji Face) Black Part 3068bpr9893 Element 6334681 ×1
  • Tile 2 x 2 with Ninji and Barcode Print (Sticker) Black Part 3068bpr9894 Element 6333983 ×1

Medium Nougat 6 pieces

  • Brick Curved 1 x 2 x 1 No Studs Medium Nougat Part 37352 Element 6334102 ×2
  • Plate 1 x 2 Medium Nougat Part 3023 Element 6218360 or 4645055 ×2
  • Plate 2 x 3 Medium Nougat Part 3021 Element 6334099 or 4645060 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Medium Nougat Part 15573 Element 6292154 or 6218364 ×1

Lime 2 pieces

  • Plant, Grass Stem with Bar Hole [3.2mm] Lime Part 15279 Element 6188696 or 6055510 ×1
  • Plant, Plate 1 x 1 Round with 3 Leaves Lime Part 32607 Element 6286831 ×1

Bright Green 1 piece

  • Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs Bright Green Part 66792 Element 6308875 ×1

Dark Pink 1 piece

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Dark Pink Part 24866 Element 6209679 1 spare in the box ×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.