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.

Loader Hopper with Truck

Checking

351 Loader Hopper with Truck

170 pieces in 37 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

Bricks 73 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×3
  • Brick 1 x 4 with White 'Legoland' Logo Print Black Part 3010pr9964 ×2
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×1
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×2
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×36
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×2
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×7
  • Brick 1 x 8 Blue Part 3008 Element 300823 ×12
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×1
  • Brick 2 x 4 without Cross Supports Trans-Clear Part 3001a ×1
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×5
  • Brick 1 x 4 with Chrome Silver Car Grill Print [Embossed] Yellow Part 3010apr0003 ×1

Tiles 35 pieces

  • Tile 2 x 2 without Groove Light Gray Part 3068a ×32
  • Tile 2 x 2 without Groove Red Part 3068a ×1
  • Tile 2 x 2 without Groove Yellow Part 3068a ×2

Bricks Sloped 33 pieces

  • Brick Sloped 45° 2 x 1 without Bottom Pin Black Part 3040a ×2
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×2
  • Brick Sloped 45° 2 x 4 Blue Part 3037 Element 4107437 or 303723 ×2
  • Brick Sloped 33° 2 x 2 Double Red Part 3300 Element 330021 ×1
  • Brick Sloped 33° 2 x 4 Double Red Part 3299 Element 329921 ×4
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×8
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×14

Plates 13 pieces

  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×2
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×2
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×3
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×1

Wheels and Tyres 9 pieces

  • Brick Special 2 x 2 [Red Wheels for Dually Tire] Black Part 3137c02 ×2
  • Brick Special 2 x 2 [Red Wheels for Single Tyre] Black Part 3137c01 ×1
  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×2
  • Tyre Smooth Small Dually Black Part 7b ×4

Windows and Doors 4 pieces

  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Red Part 3081c01 Element 7026 ×4

Baseplates 1 piece

  • Baseplate 24 x 32 with Rounded Corners and Dots Print [545-2 / 351] Green Part 10apr0005 ×1

Hinges, Arms and Turntables 1 piece

  • Hinge Plate 2 x 9 with Hole Close to Hinge [Complete Assembly] Red Part 3324ac01 ×1

Supports, Girders and Cranes 1 piece

  • Conveyor Belt (Complete Assembly) Yellow Part 630 ×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.