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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.

Cruz Ramirez Race Simulator

Checking

10731 Cruz Ramirez Race Simulator

38 pieces in 29 part and color combinations, plus 1 minifigure.

The official piece count includes the 21 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.

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Piece checklist

Bricks Sloped 7 pieces

  • Brick Sloped 33° 3 x 1 Blue Part 4286 Element 428623 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Blue Part 3660 Element 366023 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 with 2 Gauges/Dials Print Dark Bluish Gray Part 85984pr0143 Element 6134910 ×1

Bricks Special 5 pieces

  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×2
  • Brick Special 1 x 2 with Vertical Clip [Open O Clip] Dark Bluish Gray Part 30237b Element 6335306 or 6127738 ×1
  • Brick Special 1 x 2 with Grille White Part 2877 Element 6552093 or 287701 ×1
  • Brick Special 1 x 2 with Vertical Closed Handle Inset from Edge White Part 26597 Element 6172381 ×1

Bricks 4 pieces

  • Brick 1 x 6 Blue Part 3009 Element 300923 ×1
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×1
  • Brick 1 x 2 without Bottom Tube Trans-Green Part 3065 Element 6514266 or 6244908 ×1
  • Brick 1 x 2 without Bottom Tube Trans-Red Part 3065 Element 6514263 or 6244905 ×1

Plates Special 4 pieces

  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] White Part 2540 Element 4140583 or 254051 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Yellow Part 87580 Element 6126050 or 4565386 ×1

Tiles 4 pieces

  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×2
  • Tile 1 x 4 with Black Diagonal Stripes Print Yellow Part 2431pr0017 Element 4119091 ×2

Plates 3 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 6 x 12 Black Part 3028 Element 302826 ×1
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1

Tiles Special 3 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×1
  • Tile Special 2 x 2 with Top Pin Red Part 2460 Element 246021 ×2

Transportation - Sea and Air 2 pieces

  • Jet Engine Fan with 10 Blades and Technic Pin Black Part 46667 Element 6313481 or 6088638 ×1
  • Technic Cylinder 4 x 4 with Pin Holes and Centre Bar, Closed Sides on Bar Light Bluish Gray Part 41531 Element 4507052 or 4285324 ×1

Bars, Ladders and Fences 1 piece

  • Bar 1 x 3 [Clip / Anti-Stud] Black Part 4735 Element 4141580 or 473576 ×1

Bricks Curved 1 piece

  • Brick Curved 4 x 1 Double, No Studs Blue Part 93273 Element 4649773 ×1

Bricks Round and Cones 1 piece

  • Brick Round 4 x 4 Centre Hole Dark Bluish Gray Part 87081 Element 4558959 ×1

Flags, Banners and Signs 1 piece

  • Flag 6 x 4 with O-Clips Light Bluish Gray Part 2525 Element 6188859 ×1

Panels 1 piece

  • Panel 1 x 4 x 3 with Race Screen Print Trans-Light Blue Part 60581pr0001 Element 6245427 or 6188807 ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 4 [3 Pin Holes] Blue Part 3701 Element 370123 ×1

Minifigures 1 figure

  • Cruz Ramirez 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.

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