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.
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 Round 2 x 2 with Axle HoleWhite ×2Trans-Clear ×1Trans-Clear is see-through: hold the piece up to a light.
Plate Round 1 x 1 with Solid StudWhite ×1Trans-Clear ×9Trans-Clear is see-through: hold the piece up to a light.
Tile 1 x 1 with GrooveWhite ×4Trans-Clear ×2Trans-Clear is see-through: hold the piece up to a light.
Windscreen 8 x 4 x 2 Curved [2 Dual-Fingered Click Hinges]White ×1Trans-Clear ×2Trans-Clear is see-through: hold the piece up to a light.
Plate Round 1 x 1 with Solid StudDark Bluish Gray ×1Flat Silver ×24Dark Bluish Gray is darker than Flat Silver.
Plate Round 1 x 1 with Solid StudLight Bluish Gray ×17Flat Silver ×24Light Bluish Gray is lighter than Flat Silver.
6 more look-alike pairs
Tile Special 1 x 2 Grille with Bottom GrooveLight Bluish Gray ×2Flat Silver ×9Light Bluish Gray is lighter than Flat Silver.
Plate 2 x 8Black ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 4 x 4Black ×9Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Solid StudBlack ×11Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Brick 1 x 2 [1 Pin Hole]Black ×3Dark Bluish Gray ×9Black is darker than Dark Bluish Gray.
Tile 1 x 4 with GrooveBlack ×19Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Handlebars with Angular HandlesBlackPart 98397Element 6078610×2
Steering Wheel with 4 Studs on CenterBlackPart 67811Element 6299938×1
String, Bands and Reels
2 pieces
Technic Rubber Belt Medium [24mm ID] [Round Cross Section]RedPart 85544Element 4544145 or 4544143×2
Stickers
1 piece
Sticker Sheet for Set 10274-1[No Color/Any Color]Part 78153Element 6342068 or 6317390×1
Supports, Girders and Cranes
1 piece
Support Round 2 x 2 x 2 Stand with Reinforced UndersideWhitePart 19798Element 6284507×1
Technic Beams Special
1 piece
Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin HoleRedPart 61408Element 6331864×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
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.