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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.

World Grand Prix Racing Rivalry

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8423 World Grand Prix Racing Rivalry

67 pieces in 34 part and color combinations, plus 2 minifigures.

The official piece count includes the 69 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

Tiles 17 pieces

  • Tile 1 x 6 with Groove Blue Part 6636 Element 4118785 or 4108153 ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×6
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×8
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×1

Plates 12 pieces

  • Plate 1 x 12 Black Part 60479 Element 4514845 ×2
  • Plate 1 x 10 Dark Bluish Gray Part 4477 Element 4257526 or 4210816 ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×2
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×1
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 2 x 16 White Part 4282 Element 6609534 or 4119227 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×2
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×1

Plates Special 8 pieces

  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Light Bluish Gray Part 4081b Element 6281998 or 4632575 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×1
  • Plate Special 1 x 2 with Clip Horizontal on End Light Bluish Gray Part 63868 Element 6319336 or 4535738 ×2
  • Technic Plate 2 x 8 [7 Holes] Light Bluish Gray Part 3738 Element 4211449 ×2

Bricks Special 6 pieces

  • Brick Special 1 x 2 with Studs on 2 Sides Black Part 52107 Element 4253815 ×3
  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×2
  • Brick Special 1 x 4 with 4 Studs on One Side Light Bluish Gray Part 30414 Element 4211636 ×1

Bars, Ladders and Fences 4 pieces

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Black Part 48729b Element 6278152 or 6037347 1 spare in the box ×2
  • Antenna 1 x 4 with Rounded Top Light Bluish Gray Part 3957a ×2

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 2 spares in the box ×3

Tiles Special 3 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Red Part 2412b Element 241221 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips Yellow Part 2555 Element 4164060 or 255524 ×1

Bricks Curved 2 pieces

  • Brick Curved 3 x 1 No Studs Red Part 50950 Element 4251162 ×2

Bricks Round and Cones 2 pieces

  • Brick Round 2 x 2 with Axle Hole Dark Bluish Gray Part 3941 Element 4249139 ×2

Flags, Banners and Signs 2 pieces

  • Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] White Part 11055 Element 6011794 ×2

Supports, Girders and Cranes 2 pieces

  • Support 2 x 2 x 10 Girder Triangular Vertical - Type 3 - Axle Hole, 3 Posts Dark Bluish Gray Part 58827 Element 4509668 or 4503259 ×2

Technic Axles 2 pieces

  • Technic Axle 4 Black Part 3705 Element 370526 ×2

Bricks 1 piece

  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Shield Triangular Light Bluish Gray Part 3846 Element 4211465 ×1

Stickers 1 piece

  • Sticker Sheet for Set 8423-1 [No Color/Any Color] Part 95668 Element 4622048 ×1

Minifigures 2 figures

  • Francesco Bernoulli (Red 1x8 Plate) Minifigure, checked as a whole figure ×1
  • Lightning McQueen, World Grand Prix, White Wheels (LBG 3034 & Green 3023) 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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