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.
436 pieces in 164 part and color combinations, plus 3 minifigures.
The official piece count includes the 13 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.
Plate 2 x 10Black ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with Handle on End [Closed Ends]Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm]WhitePart 88072Element 6261349 or 4611700×2
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)WhitePart 18674Element 6615555 or 6093053×2
Dark Red
2 pieces
Tile 1 x 1 with GrooveDark RedPart 3070bElement 4550169 or 41871961 spare in the box×1
Tile Special 1 x 1 with Clip with Rounded EdgesDark RedPart 15712Element 6360079 or 6071222×1
Tan
2 pieces
Technic Gear 12 Tooth BevelTanPart 6589Element 4565452 or 4514556×2
Trans-Brown
2 pieces
Brick 1 x 1Trans-BrownPart 3005Element 6329870 or 6240554×2
Yellow
2 pieces
Technic Axle 5YellowPart 32073Element 6130008×1
Technic Beam 1 x 4 ThinYellowPart 32449Element 6327559 or 4199345×1
Orange
1 piece
Plate Round 1 x 1 with Solid StudOrangePart 6141Element 41571031 spare in the box×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 75153-1[No Color/Any Color]Part 28341Element 6162884 or 6162883×1
Minifigures
3 figures
Baze Malbus with Neck BracketMinifigure, checked as a whole figure×1
Imperial AT-ST Driver, Helmet with Printed GogglesMinifigure, checked as a whole figure×1
Lieutenant Sefla / Rebel TrooperMinifigure, 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.