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.
1,327 pieces in 212 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.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)White ×18Trans-Clear ×2Trans-Clear is see-through: hold the piece up to a light.
Plate 1 x 2White ×4Trans-Clear ×5Trans-Clear is see-through: hold the piece up to a light.
Brick Curved 2 x 2, Two Top StudsBlack ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 StudsBlack ×1Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×16Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 Grille with Bottom GrooveBlack ×2Dark Bluish Gray ×11Black is darker than Dark Bluish Gray.
Tile 2 x 4 with GrooveReddish BrownPart 87079Element 4579690×4
Trans-Clear
35 pieces
Brick Round 1 x 1 Open StudTrans-ClearPart 3062bElement 6514232 or 6223655×1
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-ClearPart 54200Element 6245250 or 42443621 spare in the boxAlso in White×2
Brick Special 1 x 1 with HeadlightTrans-ClearPart 4070Element 6514231 or 6244796×2
Glass for Window 1 x 2 x 2 FlatTrans-ClearPart 60601Element 6673770 or 6524697×4
Glass for Window 1 x 2 x 3 Flat FrontTrans-ClearPart 60602Element 6581359 or 6252258×19
Plate 1 x 2Trans-ClearPart 3023Element 6514001 or 6240204Also in White×5
Rock 1 x 1 Jewel / Gem 24 FacetTrans-ClearPart 30153Element 6513976 or 6247798×1
Windscreen 3 x 6 x 1 Curved with Black Window Outline PrintTrans-ClearPart 62360pr0001Element 6023505×1
Blue
23 pieces
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]BluePart 87552Element 4586548×2
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]BluePart 60897Element 6352221 or 4613257×8
Seat / Chair 2 x 2 with Center Sprue MarkBluePart 4079bElement 407923×7
Technic Pin Long with Friction Ridges Lengthwise, 2 Center SlotsBluePart 6558Element 4514553×4
Tile Special 1 x 2 with HandleBluePart 2432Element 243223×2
Metallic Silver
12 pieces
Plate Round 1 x 1 with Solid StudMetallic SilverPart 6141Element 51809301 or 65461052 spares in the box×12
Chrome Silver
8 pieces
Train Wheel RC Train, Metal Axle 5 x 100 LDUChrome SilverPart 57051Element 4298979×8
Red
4 pieces
Brick Round 1 x 1 Open StudRedPart 3062bElement 306221×1
Plate 1 x 1RedPart 3024Element 3024211 spare in the box×1
Plate 1 x 2RedPart 3023Element 302321×1
Tile 1 x 2 with GrooveRedPart 3069bElement 4178178 or 306921×1
Yellow
4 pieces
Brick Special 1 x 2 with Studs on 2 SidesYellowPart 52107Element 6289719 or 4557157×2
Equipment Cup / Mug [Plain]YellowPart 3899Element 389924×2
Dark Tan
2 pieces
Plate Special 1 x 2 with Door RailDark TanPart 32028Element 4616711 or 4267875×2
Green
1 piece
Brick and Axle Separator v2.0GreenPart 96874Element 6240517 or 6000102×1
Trans-Green
1 piece
Equipment BottleTrans-GreenPart 95228Element 6507875 or 6247364×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 10233-1[No Color/Any Color]Part 12953Element 6022720×1
Minifigures
6 figures
Train Worker - Dark Blue Torso, Dark BLue Legs, Dark Red HatMinifigure, checked as a whole figure×1
Dark Purple Torso, White Legs, Black HairMinifigure, checked as a whole figure×1
Green Torso, Dark Brown Legs, Dark Brown HairMinifigure, checked as a whole figure×1
Medium Blue torso, Black Legs, Tan HairMinifigure, checked as a whole figure×1
Train Worker - Orange Torso, Light Bluish Grey Legs, Dark Brown HairMinifigure, checked as a whole figure×1
Light Bluish Grey Torso, Dark Bluish Grey Legs, Light Bluish Grey 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.