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.
561 pieces in 229 part and color combinations, plus 5 minifigures.
The official piece count includes the 20 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.
Weapon Lightsaber Hilt with Bottom RingLight Bluish Gray ×1Metallic Silver ×1Light Bluish Gray is yellower than Metallic Silver.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Tan ×2Dark Tan ×4Tan is lighter than Dark Tan.
Plate Special 1 x 2 Rounded with 2 Open StudsBlack ×6Dark Bluish Gray ×7Black is darker than Dark Bluish Gray.
Weapon Lightsaber Hilt with Bottom RingMetallic SilverPart 64567Element 6546103 or 60513891 spare in the boxAlso in Light Bluish Gray×1
Orange
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Trans-Black
1 piece
Panel 1 x 4 x 1 with Rounded Corners [Thin Wall]Trans-BlackPart 15207Element 6514078 or 6499904×1
Trans-Clear
1 piece
Windscreen 4 x 6 x 2 with Light Bluish Grey X-Wing Cockpit PrintTrans-ClearPart 7790pr0001Element 6530829×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 75423-1[No Color/Any Color]Part 10111781Element 6530834×1
Minifigures
5 figures
Stormtrooper - Medium Brown HeadMinifigure, checked as a whole figure×1
Princess Leia, White Robe (SMART Play)Minifigure, checked as a whole figure×1
Luke Skywalker, Orange Rebel Pilot Outift (SMART Play)Minifigure, checked as a whole figure×1
Astromech Droid, R2-D2 (SMART Play)Minifigure, checked as a whole figure×1
Rebel Crew, Sienna Brown HeadMinifigure, 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.