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.
351 pieces in 114 part and color combinations, plus 2 minifigures.
The official piece count includes the 8 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.
Brick Sloped Inverted 45° 6 x 1 Double with 1 x 4 RecessedWhitePart 52501Element 4259937×2
Plate 1 x 4WhitePart 3710Element 6552108 or 6548266×2
Plate 2 x 2 CornerWhitePart 2420Element 6548254 or 242051×2
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]WhitePart 60897Element 6330191 or 4613256×4
Technic Pin 1/2 without Friction RidgesWhitePart 4274Element 6552190 or 6388018×8
Tile Special 1 x 2 with HandleWhitePart 2432Element 243201×2
Magenta
11 pieces
Brick Curved 4 x 2 No StudsMagentaPart 93606Element 6443846×1
Plate 1 x 4MagentaPart 3710Element 6037652×1
Plate 1 x 6MagentaPart 3666Element 6003206 or 4654105×2
Plate 2 x 4MagentaPart 3020Element 6091608 or 6037658×1
Tile 1 x 6 with GrooveMagentaPart 6636Element 6102821×1
Tile 2 x 2 with GrooveMagentaPart 3068bElement 6249234 or 4173214×1
Wheel Rim 24 x 12 with Black TyreMagentaPart 72206Element 6452829×4
Medium Azure
10 pieces
Brick Curved 2 x 1 No Studs [1/2 Bow]Medium AzurePart 11477Element 6603334 or 6071246×2
Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]Medium AzurePart 11153Element 6603601 or 6580402×2
Brick Wedged, Curved 2 x 1 with Stud Notch LeftMedium AzurePart 29120Element 6296904×1
Brick Wedged, Curved 2 x 1 with Stud Notch RightMedium AzurePart 29119Element 6296901×1
Plate Round Corners 2 x 6 DoubleMedium AzurePart 18980Element 6292824×2
Tile 1 x 2 with GrooveMedium AzurePart 3069bElement 6603315 or 4649741×2
Dark Bluish Gray
8 pieces
Brick Special 2 x 4 x 1 1/3 with Axle Holes and 2 x 2 Recessed and HoleDark Bluish GrayPart 67446Element 6335115 or 6310208×4
Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray TopDark Bluish GrayPart 15400Element 6324200 or 6048898×2
Plate Special 2 x 4 with Pins, ReinforcedDark Bluish GrayPart 40687Element 6351293×2
Light Aqua
6 pieces
Plate 2 x 3Light AquaPart 3021Element 6426724 or 6192108×6
Tan
6 pieces
Plate Special 2 x 2 x 2/3 with Axle Hole and Grill on Sides (Haybale)TanPart 71752Element 6330903×2
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×4
Trans-Green
6 pieces
Brick 1 x 2 without Bottom TubeTrans-GreenPart 3065Element 6514266 or 6244908×3
Tile Round 1 x 1Trans-GreenPart 98138Element 6514194 or 6274742×2
Windscreen 3 x 4 x 1 1/3 Large Glass SurfaceTrans-GreenPart 57783Element 6507934 or 6456108×1
Trans-Red
5 pieces
Plate 1 x 2Trans-RedPart 3023Element 6514003 or 6240212×2
Tile 1 x 4 with GrooveTrans-RedPart 2431Element 6510184 or 6390369×1
Tile Round 1 x 1Trans-RedPart 98138Element 6514189 or 6258607×2
Trans-Dark Blue
4 pieces
Projectile, Spring Shooter Ammunition 8L BarTrans-Dark BluePart 15303Element 6296379 or 6065898×4
Trans-Dark Pink
4 pieces
Brick 1 x 2 without Bottom TubeTrans-Dark PinkPart 3065Element 6514270 or 6244913×3
Windscreen 6 x 4 x 1 CurvedTrans-Dark PinkPart 18973Element 6452828×1
Flat Silver
2 pieces
Engine / Air Scoop 2 x 2Flat SilverPart 50943Element 6076604×2
Trans-Brown
2 pieces
Headwear Accessory Visor For Standard HelmetTrans-BrownPart 2447Element 6244785 or 6139158×2
Minifigures
2 figures
Race Driver - Flat Silver Torso, Dark Turquoise Arms, Black Legs, Reddish Brown HairMinifigure, checked as a whole figure×1
Race Driver - Flat Silver Torso, Coral Arms, Black Legs, Bright Light Yellow HairMinifigure, 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.
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.