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.
674 pieces in 254 part and color combinations, plus 6 minifigures.
The official piece count includes the 24 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.
Look-alike colors in this set
These parts appear in this set in two colors that are easy to confuse. If you are one short in one color,
check whether it went in where the other color belongs. Each color has its own element ID in the parts list
at the back of the instructions.
Tile Round 1 x 1Yellow ×2Trans-Yellow ×2Trans-Yellow is see-through: hold the piece up to a light.
Panel 1 x 4 x 1 with Rounded Corners [Thin Wall]Black ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 1 x 6Black ×1Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Axle Connector with Axle HoleYellowPart 32039Element 4107800 or 3203924×2
Tile 2 x 2 Curved, MacaroniYellowPart 27925Element 6275508 or 6195186×1
Tile Round 1 x 1YellowPart 98138Element 6284577 or 60707141 spare in the boxAlso in Trans-Yellow×2
Tile Special 6 x 4 with Beveled Edges and 5mm Pin (Train Bogie Plate)YellowPart 4025Element 6413626 or 6296796×2
Tan
12 pieces
Plate 2 x 10TanPart 3832Element 4249019 or 4248731×1
Plate 2 x 4TanPart 3020Element 4114309 or 302005×2
Plate 2 x 6TanPart 3795Element 4113993 or 379505×2
Plate Special 1 x 2 Side Handle [Free Ends]TanPart 2540Element 4140593 or 4125271×1
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×4
Tile 1 x 2 with GrooveTanPart 3069bElement 4114026×2
Flat Silver
10 pieces
Tile Special 1 x 2 Grille with Bottom GrooveFlat SilverPart 2412bElement 4619636×8
Wheel 18 x 12 with Axle Hole and StudFlat SilverPart 18976Element 6327096 or 6102594×2
Dark Tan
8 pieces
Plate 2 x 8Dark TanPart 3034Element 4246957×6
Plate 8 x 8Dark TanPart 41539Element 4570111×2
Trans-Purple
7 pieces
Dish 2 x 2 Inverted [Radar]Trans-PurplePart 4740Element 6580379 or 6245309×4
Plate Round 1 x 1 with Solid StudTrans-PurplePart 6141Element 6514054 or 62402101 spare in the box×3
Trans-Clear
6 pieces
Cylinder Half 2 x 4 x 5 with 1 x 2 cutoutTrans-ClearPart 85941Element 6514134 or 6246876×2
Door 1 x 4 x 6 Smooth with Chamfered Handle PlinthTrans-ClearPart 60616bElement 6514119 or 6247362×1
Glass for Train Front 2 x 6 x 2Trans-ClearPart 17457Element 6284181 or 6173965×1
Glass for Window 1 x 4 x 3 [Opening]Trans-ClearPart 60603Element 6514142 or 6253734×2
Dark Blue
4 pieces
Plate 2 x 4Dark BluePart 3020Element 6554194 or 4667595×1
Tile 2 x 2 with GrooveDark BluePart 3068bElement 4205004×2
Window 1 x 2 x 2 Flat FrontDark BluePart 60592Element 6382723 or 6135595×1
Dark Orange
4 pieces
Plate Special 1 x 2 with Clip Horizontal on SideDark OrangePart 11476Element 6313129 or 6186049×4
Green
3 pieces
Container Box 2 x 2 x 2 - Top OpeningGreenPart 61780Element 4548102×1
Plate Special 1 x 2 with Door RailGreenPart 32028Element 4272665 or 4107760×1
Tile 2 x 2 with GrooveGreenPart 3068bElement 4107762 or 306828×1
Trans-Neon Green
3 pieces
Brick Round 1 x 1 Open StudTrans-Neon GreenPart 3062bElement 6514237 or 6238675×1
Minifig Head Ghost, Yellowish Green Face, Bushy Eyebrows, Angry, Flames in BackTrans-Neon GreenPart 3626cpr2979Element 6273602×1
Minifig Head Ghost, Yellowish Green Face, Slime Mouth, Raised Eyebrows, Flames in Back [Hollow Stud]Trans-Neon GreenPart 3626cpr9872Element 6300200 or 6273380×1
Trans-Yellow
3 pieces
Brick Round 1 x 1 Open StudTrans-YellowPart 3062bElement 6514236 or 6238674×1
Tile Round 1 x 1Trans-YellowPart 98138Element 6514193 or 62747401 spare in the boxAlso in Yellow×2
Coral
2 pieces
Tile 1 x 2 with Smart Phone and Yellow Ghost PrintCoralPart 3069bpr0269Element 6275078×1
Tile 2 x 2 Curved, MacaroniCoralPart 27925Element 6250024×1
Medium Blue
2 pieces
Plate 1 x 2Medium BluePart 3023Element 4179825 or 4165460×2
Orange
2 pieces
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleOrangePart 60483Element 6265128 or 6057526×1
Trans-Brown
2 pieces
Glass for Train Door Lip On All SidesTrans-BrownPart 35157Element 6244882×2
[No Color/Any Color]
2 pieces
Sticker Sheet 1 for Set 70424-1[No Color/Any Color]Part 60525Element 6273256×1
Sticker Sheet 2 for Set 70424-1[No Color/Any Color]Part 63811Element 6276027×1
Bright Green
1 piece
Technic Pin Connector Round [Slotted]Bright GreenPart 62462Element 6173135 or 6097400×1
Bright Light Orange
1 piece
Plate 1 x 6Bright Light OrangePart 3666Element 6020074×1
Dark Purple
1 piece
Tile 1 x 2 with Smart Phone and Dark Red Ghost PrintDark PurplePart 3069bpr0725Element 6275081×1
Medium Azure
1 piece
Tile 2 x 2 Curved, MacaroniMedium AzurePart 27925Element 6258069×1
Medium Nougat
1 piece
Bar 1 x 4 x 3 [End Tabs]Medium NougatPart 62113Element 6167599×1
Trans-Red
1 piece
Tile Round 1 x 1Trans-RedPart 98138Element 6514189 or 62586071 spare in the box×1
Minifigures
6 figures
Jack Davids, Red Jacket with White Hood and Red CapMinifigure, checked as a whole figure×1
J.B. Watt, Lab Coat, Medium Lavender Hair with GogglesMinifigure, checked as a whole figure×1
Parker L. Jackson, Bright Light Blue Denim Jacket, Bright Light Yellow Beanie Hat, Medium Lavender HairMinifigure, checked as a whole figure×1
ChuckMinifigure, checked as a whole figure×1
PaulMinifigure, checked as a whole figure×1
Ms. SantosMinifigure, 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.