The Workshop Sheet 10 of 19

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Beast

Checking

71039-10 Beast

9 pieces in 9 part and color combinations, plus 1 minifigure.

The piece count includes the 4 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

Plates Special 4 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×1
  • Plate Special 3 x 4 with 1 x 4 Center Studs [Plain] Black Part 88646 Element 6076678 or 4571146 ×1
  • Bracket 1 x 1 - 1 x 1 Inverted White Part 36840 Element 6548290 or 6242241 ×1
  • Plate Special Round 1 x 1 with Vertical Bar White Part 3661 Element 6508268 or 6437184 ×1

Minifig Accessories 2 pieces

  • Equipment Binoculars Black Part 30162 Element 6034002 or 6003301 1 spare in the box ×1
  • Equipment Cup / Mug with Red X-Men Logo Print Yellow Part 3899pr0012 Element 6441205 ×1

Bars, Ladders and Fences 1 piece

  • Bar, Angled with 1 x 1 Round Plate / Stud on End Trans-Clear Part 65578 Element 6510188 or 6285587 1 spare in the box ×1

Plates Round Curved and Dishes 1 piece

  • Plate Round 1 x 1 with Open Stud Black Part 85861 Element 6168646 or 6100627 1 spare in the box ×1

Tiles Round and Curved 1 piece

  • Tile Round 1 x 1 Trans-Bright Green Part 98138 Element 6514198 or 6274748 1 spare in the box ×1

Minifigures 1 figure

  • Beast 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.