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.
859 pieces in 274 part and color combinations, plus 4 minifigures.
The official piece count includes the 21 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.
Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow SpokesPearl GoldPart 55981Element 6109685 or 6054532×2
Windscreens and Fuselage
2 pieces
Windscreen 6 x 6 x 3 Dome with Dual 2 FingersTrans-Dark PinkPart 52979Element 6544090 or 6391774×1
Windscreen 6 x 4 x 2 1/3 Bubble Canopy with HandleTrans-Light BluePart 87752Element 6507953 or 6254264×1
Energy Effects
1 piece
Wave / Flame with ClipTrans-Bright GreenPart 80519Element 6375785×1
Stickers
1 piece
Sticker Sheet for Set 80037-1[No Color/Any Color]Part 10066310Element 6287608×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
4 figures
Dragon of the East, RobeMinifigure, checked as a whole figure×1
Rumble / SavageMinifigure, checked as a whole figure×1
Monkie Kid, Bright Light Orange Jacket, Breathing Apparatus, GogglesMinifigure, checked as a whole figure×1
Mr Tang, Breathing ApparatusMinifigure, 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.