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.
498 pieces in 191 part and color combinations, plus 4 minifigures.
LEGO counts 507 pieces. This inventory comes from a separate parts catalog and lists 515, including the 17 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.
Plate 1 x 6MagentaPart 3666Element 6003206 or 4654105×4
Tile 1 x 6 with GrooveMagentaPart 6636Element 6102821×2
Dark Turquoise
22 pieces
Bracket 1 x 2 - 1 x 2Dark TurquoisePart 99781Element 6249418×2
Brick Curved 1 x 4 x 1 1/3 No StudsDark TurquoisePart 10314Element 6217667×2
Brick Curved 2 x 2 x 2/3Dark TurquoisePart 15068Element 6223665×1
Brick Curved 4 x 1 Double, No StudsDark TurquoisePart 93273Element 6249299×2
Brick Round 1 x 1 Open StudDark TurquoisePart 3062bElement 6325955×1
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Dark TurquoisePart 54200Element 62781721 spare in the box×4
Brick Sloped 30° 1 x 2 x 2/3Dark TurquoisePart 85984Element 6228967×3
Plate 2 x 4Dark TurquoisePart 3020Element 6338181 or 4121501×2
Tile 1 x 2 with GrooveDark TurquoisePart 3069bElement 6213779 or 4164140×3
Wheel Arch, Mudguard 4 x 2 x 2 1/2Dark TurquoisePart 35789Element 6336510×2
Medium Nougat
21 pieces
Brick 1 x 2 x 5 with Hollow StudsMedium NougatPart 2454bElement 6186400 or 4666340×2
Brick 2 x 2Medium NougatPart 3003Element 6058085 or 4645062×3
Brick 2 x 4Medium NougatPart 3001Element 6135191 or 4645064×5
Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud]Medium NougatPart 60475bElement 6360035 or 4569385×4
Plate 2 x 6Medium NougatPart 3795Element 6313600×2
Plate 2 x 8Medium NougatPart 3034Element 6226644×1
Tile 1 x 6 with GrooveMedium NougatPart 6636Element 6102995×4
Dark Bluish Gray
17 pieces
Brick Special 1 x 2 Rounded with Center BarsDark Bluish GrayPart 77808Element 6510213 or 6390673×5
Cone 1 x 1 [Top Groove]Dark Bluish GrayPart 59900Element 4529240×1
Equipment Binoculars with Stud on TopDark Bluish GrayPart 52494Element 6263570×1
Plate 2 x 12Dark Bluish GrayPart 2445Element 4211067×2
Plate 4 x 12Dark Bluish GrayPart 3029Element 4210706×1
Plate 4 x 6Dark Bluish GrayPart 3032Element 4211115 or 3032199×2
Plate 4 x 8Dark Bluish GrayPart 3035Element 4211061×1
Plate Special 1 x 1 with Handle on 2 EndsDark Bluish GrayPart 78257Element 6352600×2
Tool Welding GunDark Bluish GrayPart 13793Element 6510473 or 6116470×1
Wheel Fork with 2 x 2 PlateDark Bluish GrayPart 77598Element 6338470×1
White
15 pieces
Helmet, StandardWhitePart 2446Element 6138832 or 4583503×1
Plate 1 x 6WhitePart 3666Element 6552107 or 6548265×2
Plate 2 x 3WhitePart 3021Element 6550136 or 302101×6
Technic Pin 1/2 without Friction RidgesWhitePart 4274Element 6552190 or 63880181 spare in the box×2
Tile 1 x 2 with GrooveWhitePart 3069bElement 6548264 or 306901×4
Trans-Red
13 pieces
Plate 1 x 2Trans-RedPart 3023Element 6514003 or 6240212×7
Tile 1 x 2 with GrooveTrans-RedPart 3069bElement 6514220 or 6251290×2
Tile Round 1 x 1Trans-RedPart 98138Element 6514189 or 62586071 spare in the box×4
Yellow
9 pieces
Brick Curved 2 x 2 x 2/3YellowPart 15068Element 6079007×1
Equipment Medical Wheelchair with Pins for Wheels [Minifig]YellowPart 80440Element 6400771×1
Hinge Brick 1 x 2 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 7 TeethYellowPart 39893Element 6266283×3
Technic Axle 3YellowPart 4519Element 6130007×4
Trans-Light Blue
8 pieces
Tile 1 x 4 with GrooveTrans-Light BluePart 2431Element 6510178 or 6252049×1
Tile Round 1 x 1Trans-Light BluePart 98138Element 6514192 or 62747391 spare in the box×1
Tile Round 1 x 1 QuarterTrans-Light BluePart 25269Element 6514467 or 63962871 spare in the box×6
Bright Light Yellow
4 pieces
Tile Round 1 x 1 with Two Eyes and 'LIGHT' on Dark Silver PrintBright Light YellowPart 98138pr9975Element 64191401 spare in the box×4
Pearl Gold
4 pieces
Wheel 14mm D. x 9.9mm with Centre Groove, Fake Bolts and 6 SpokesPearl GoldPart 11208Element 6268401×4
Trans-Clear
4 pieces
Headwear Accessory Visor For Standard HelmetTrans-ClearPart 2447Element 6244787 or 46267241 spare in the box×2
Wheel Wheelchair with Pin Hole, Fixed Black Hard Rubber Tire PatternTrans-ClearPart 80441pat0001Element 6503251 or 64007731 spare in the box×2
Trans-Brown
3 pieces
Windscreen 3 x 4 x 1 1/3 Large Glass SurfaceTrans-BrownPart 57783Element 6507931 or 6247359×3
Dark Azure
1 piece
Brick Round 1 x 1 Open StudDark AzurePart 3062bElement 4653267×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 60389-1[No Color/Any Color]Part 10101461Element 6420304×1
Minifigures
4 figures
Mechanic, Medium Blue OverallsMinifigure, checked as a whole figure×1
Racer, Orange and Dark Blue Race Suit, Reddish Brown HairMinifigure, checked as a whole figure×1
Woman, Dark Turquoise Jacket and Cap, Black LegsMinifigure, checked as a whole figure×1
Mech Max, Sand Blue Vest, Medium Blue Legs, Magenta 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.