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.

Max's Pitstop

Checking

4173 Max's Pitstop

59 pieces in 33 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 23 pieces

  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×2
  • Brick 1 x 4 with Stripes and Wrench Print Red Part 3010apr9959 Element 4143716 or 4116751 ×1
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×5
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Brick 2 x 4 Red Part 3001 Element 300121 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×2
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×2

Plates 9 pieces

  • Plate 2 x 10 Black Part 3832 Element 383226 ×2
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 6 x 12 Green Part 3028 Element 6177783 or 4614769 ×1
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×1
  • Plate 2 x 6 Light Gray Part 3795 Element 379502 ×1
  • Plate 2 x 10 Red Part 3832 Element 383221 ×2

Wheels and Tyres 8 pieces

  • Tyre 30.4 x 14 Offset Tread Black Part 30391 Element 4140670 or 3039126 ×4
  • Wheel 18 x 14 with Tread Small Hub White Part 30285 Element 4116774 ×4

Bricks Sloped 5 pieces

  • Brick Sloped 45° 2 x 2 Trans-Neon Green Part 3039 Element 4140789 ×2
  • Brick Sloped 33° 3 x 2 White Part 3298 Element 329801 ×1
  • Brick Sloped 33° 3 x 2 with Red '1', Chequered Flag Print White Part 3298pr0036 Element 4143715 or 82306 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×1

Bars, Ladders and Fences 4 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×1
  • Bar 1 x 4 x 2 with Studs Black Part 4083 Element 408326 ×2
  • Bar 1 x 6 [Closed Studs] Black Part 6140 Element 6415609 or 614026 ×1

Bricks Special 2 pieces

  • Brick Special 2 x 2 with 2 Pins and Axle Hole Dark Gray Part 30000 Element 3000027 ×2

Plants & Trees 2 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Green Part 4727 Element 472728 ×1
  • Plant, Flower 2 x 2 - Round [Open Stud] Red Part 4728 Element 472821 ×1

Windows and Doors 2 pieces

  • Door Frame 2 x 6 x 6 Freestyle Blue Part 6235 Element 623523 ×1
  • Door 1 x 6 x 6 Freestyle Yellow Part 600 Element 623424 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Tool Pipe Wrench / Adjustable Spanner Light Gray Part 4328 Element 4121703 ×1

Minifigs 1 piece

  • Juniors Midifig, Max, Blue Torso, Black Legs Blue Part 76519pr0002 ×1

Tiles Special 1 piece

  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×1

Transportation - Land 1 piece

  • Steering Stand 1 x 2 with Black Steering Wheel Light Gray Part 3829c01 Element 9556 ×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.