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.

Baby T-Rex Trap

Checking

5914 Baby T-Rex Trap

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

The piece count includes the 5 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

Bricks 4 pieces

  • Brick 1 x 4 Light Gray Part 3010 Element 301002 ×4

Plates Special 4 pieces

  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×4

Plates 3 pieces

  • Plate 1 x 2 Blue Part 3023 Element 302323 ×2
  • Plate 4 x 6 Brown Part 3032 Element 4141462 ×1

Bars, Ladders and Fences 2 pieces

  • Bar 1 x 4 x 3 Window [Side Tabs] Dark Gray Part 6016 Element 4125219 or 601627 ×2

Animals / Creatures 1 piece

  • Animal, Dinosaur, Tyrannosaurus Rex Baby Green Part 30464 Element 4299363 or 4140595 ×1

Gear Parts 1 piece

  • Comic Book, Adventurers #4 [No Color/Any Color] Part 4133396 ×1

Minifig Accessories 1 piece

  • Equipment Net [Fabuland Wind Gauge] Yellow Part 4433 Element 4141345 or 443324 ×1

Plants & Trees 1 piece

  • Plant, Leaves 4 x 3 Green Part 2423 Element 6268814 or 242328 ×1

Minifigures 1 figure

  • Baron Von Barron 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.