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.

Fortress

Checking

11940 Fortress

52 pieces in 26 part and color combinations.

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

Light Bluish Gray 15 pieces

  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×1
  • Brick Arch 1 x 4 Light Bluish Gray Part 3659 Element 4211435 ×1
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] Light Bluish Gray Part 85080 Element 6078259 or 4567448 ×5
  • Brick Special 1 x 1 with Stud on 1 Side Light Bluish Gray Part 87087 Element 4558953 ×3
  • Hinge Brick 1 x 4 [Lower] Light Bluish Gray Part 3831 Element 4211461 ×1
  • Hinge Brick 1 x 4 [Upper] Light Bluish Gray Part 3830 Element 6327412 or 6011459 ×1
  • Plate Round Corners 2 x 6 Double Light Bluish Gray Part 18980 Element 6105964 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×1
  • Window 1 x 2 x 2 2/3 with Rounded Top Light Bluish Gray Part 30044 Element 4523353 or 4211627 ×1

Dark Tan 13 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Tan Part 54200 Element 6040126 or 6015451 1 spare in the box ×13

Dark Bluish Gray 8 pieces

  • Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×1
  • Brick Round 1 x 1 Open Stud Dark Bluish Gray Part 3062b Element 4211090 ×4
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×1
  • Plate Round Corner 3 x 3 Dark Bluish Gray Part 30357 Element 4212075 ×2

Black 5 pieces

  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×2
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Black Part 32530 Element 4144024 ×1

Reddish Brown 4 pieces

  • Antenna 1 x 4 with Flat Top Reddish Brown Part 3957b Element 4538252 ×1
  • Plate Round 1 x 1 Swirled Top / Poo Reddish Brown Part 53119 Element 6438899 or 6275030 1 spare in the box ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Reddish Brown Part 32016 Element 6261388 or 4610666 ×1

Blue 2 pieces

  • Flag 4 x 1 Wavy [First Wave Right] Blue Part 4495b Element 6268955 or 6215573 ×1
  • Tile Special 2 x 3 Pentagonal Blue Part 22385 Element 6245248 or 6128871 ×1

Trans-Orange 2 pieces

  • Plate Round 1 x 1 with Open Stud Trans-Orange Part 85861 Element 6510162 or 6174023 1 spare in the box ×2

Flat Silver 1 piece

  • Equipment Frying Pan Flat Silver Part 4528 Element 4624615 ×1

Olive Green 1 piece

  • Plant, Leaves 4 x 3 Olive Green Part 2423 Element 6268815 or 6006425 ×1

Tan 1 piece

  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×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.