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.

Intelligent Train Cargo (Explore)

Checking

3326 Intelligent Train Cargo (Explore)

14 pieces in 12 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

Dark Gray 4 pieces

  • Duplo Train Track 4 x 8 Curved [Short] Dark Gray Part 6378 Element 637827 ×2
  • Duplo Train Track 4 x 8 Straight Dark Gray Part 6377 Element 637727 ×2

Black 2 pieces

  • Duplo Forklift Plate Black Part 42405 Element 4165974 ×1
  • Duplo Train Base 4 x 8 for Intelligent Train, with Battery Compartment Black Part 2092c01 Element 4263158 ×1

Blue 1 piece

  • Duplo Figure, Early, Hard Hat Orange, Blue Legs, Shirt with Pockets / 'Cargo' on Back Print Blue Part 74506pr0001 Element 4169669 ×1

Bright Green 1 piece

  • Duplo Train, Intelligent Train Freight Container with Sound and Cargo Logo Print Bright Green Part 42400c02 ×1

Orange 1 piece

  • Duplo Forklift Truck with Two Large Front Black Wheels and Two Small Rear Black Wheels Orange Part 42404c01 Element 4617651 or 4534373 ×1

Pearl Light Gray 1 piece

  • Duplo Truck Cabin Enclosed with Clear Windows Pearl Light Gray Part 31077 Element 4169314 ×1

Red 1 piece

  • Duplo Truck with 4 x 4 Flatbed Plate, Dark Gray Base and Hubs, Wide Wheels Red Part 31076c03 ×1

Trans-Light Blue 1 piece

  • Duplo Train Intelligent Train Smart Tile with Reverse Arrow Print Trans-Light Blue Part 42387 Element 4165526 or 4165506 ×1

Trans-Neon Orange 1 piece

  • Duplo Train Intelligent Train Smart Tile with Cargo Logo Print Trans-Neon Orange Part 42392 Element 4165533 or 4165512 ×1

Yellow 1 piece

  • Duplo Train, Intelligent Train Freight Container with Sound and Cargo Logo Print Yellow Part 42400c04 ×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.