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.

Ninja Army Building Set

Checking

851342 Ninja Army Building Set

19 pieces in 14 part and color combinations, plus 4 minifigures.

The piece count includes the 18 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.

Show

Piece checklist

Black 9 pieces

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium Black Part 87747 Element 6270091 or 4563477 ×1
  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Black Part 53451 Element 6270103 or 4568385 ×1
  • Bar Holder with Clip Black Part 11090 Element 6315887 or 6015891 ×2
  • Equipment Ball and Chain with 1 x 1 Round Plate Black Part 15532 Element 6325312 or 6055308 ×1
  • Pneumatic T-Piece (T Bar) [New Style] Black Part 4697b Element 6104209 ×2
  • Shield Round Bowed [Plain] Black Part 75902 Element 6105955 ×1
  • Weapon Lightsaber Hilt with Bottom Ring Black Part 64567 Element 4614712 or 4598897 ×1

Pearl Gold 7 pieces

  • Bar 1L with Top Stud and Two Side Studs Pearl Gold Part 92690 Element 6328909 or 4640843 ×1
  • Bar 3L Pearl Gold Part 87994 Element 6093529 or 6078895 ×2
  • Bar Holder with Clip Pearl Gold Part 11090 Element 6252838 or 6078364 ×1
  • Weapon Lightsaber Hilt with Bottom Ring Pearl Gold Part 64567 Element 6003147 ×1
  • Weapon Sai Pearl Gold Part 98139 Element 6270135 or 4646866 ×2

Yellowish Green 2 pieces

  • Weapon Scythe / Crescent Blade Serrated with Bar Yellowish Green Part 98141 Element 6109558 ×2

Pearl Titanium 1 piece

  • Weapon Sai Pearl Titanium Part 98139 Element 6270137 or 4646870 ×1

Minifigures 4 figures

  • Jay with Bandana Minifigure, checked as a whole figure ×1
  • Kai with Bandana Minifigure, checked as a whole figure ×1
  • Ghost Ninja Wooo Minifigure, checked as a whole figure ×1
  • Ghost Ninja Howla 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.