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.
954 pieces in 314 part and color combinations, plus 5 minifigures.
The official piece count includes the 18 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.
Tile 1 x 2 with GrooveTrans-Brown ×2Dark Bluish Gray ×2Trans-Brown is see-through: hold the piece up to a light.
Tile 1 x 2 with GrooveBlack ×2Trans-Brown ×2Trans-Brown is see-through: hold the piece up to a light.
Plate 2 x 4Black ×5Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Technic Axle Connector Smooth [with x Hole + Orientation]Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Brick 1 x 12 [11 Pin Holes]Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 2 with GrooveBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
1 more look-alike pair
Tile Special 1 x 2 Grille with Bottom GrooveBlack ×6Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin HoleRedPart 32184Element 6276963 or 4128598×2
Flat Silver
6 pieces
Plate Round 1 x 1 with Solid StudFlat SilverPart 6141Element 46336912 spares in the box×4
Tile Round 1 x 1 with Thermal Detonator PrintFlat SilverPart 98138pr0010Element 6287874 or 60065411 spare in the box×2
Trans-Brown
6 pieces
Panel 1 x 2 x 3 [Side Supports / Hollow Studs]Trans-BrownPart 87544Element 6507950 or 6239388×4
Tile 1 x 2 with GrooveTrans-BrownPart 3069bElement 6514222 or 6251292Also in BlackAlso in Dark Bluish Gray×2
Orange
5 pieces
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleOrangePart 60483Element 6265128 or 6057526×4
Trans-Red
5 pieces
Bar 4L (Lightsaber Blade / Wand)Trans-RedPart 30374Element 6507880 or 6167284×2
Plate 1 x 2Trans-RedPart 3023Element 6514003 or 6240212×2
Plate Round 1 x 1 with Solid StudTrans-RedPart 6141Element 6514051 or 62084501 spare in the box×1
Trans-Yellow
4 pieces
Brick Round 1 x 1 Open StudTrans-YellowPart 3062bElement 6514236 or 6238674×4
White
4 pieces
Equipment Cup / Mug [Plain]WhitePart 3899Element 4659665 or 4548546×1
Equipment Space Binoculars / Scanner / ElectrobinocularsWhitePart 30304Element 6359936 or 6122729×1
Plate 1 x 3WhitePart 3623Element 6552105 or 6550144×2
Dark Orange
3 pieces
Dish 6 x 6 Inverted (Radar) with Solid StudsDark OrangePart 44375bElement 6153366 or 4659003×1
Plate 1 x 4Dark OrangePart 3710Element 6074892 or 4603740×2
Trans-Dark Blue
3 pieces
Projectile, Spring Shooter Ammunition 8L BarTrans-Dark BluePart 15303Element 6296379 or 6065898×3
Medium Blue
2 pieces
Plate Special 6 x 12, Studs on 3 EdgesMedium BluePart 6178Element 6147090 or 4163605×2
Medium Azure
1 piece
Tile 2 x 4 with GrooveMedium AzurePart 87079Element 6097042×1
Medium Nougat
1 piece
Plate 2 x 2Medium NougatPart 3022Element 6056383 or 4645059×1
Pearl Titanium
1 piece
Weapon Lightsaber Hilt Straight with RingPearl TitaniumPart 18673Element 6396009 or 6091582×1
Trans-Clear
1 piece
Panel 1 x 4 x 3 [Side Supports / Hollow Studs]Trans-ClearPart 60581Element 6514156 or 6344088×1
Trans-Light Blue
1 piece
Rock 1 x 1 Crystal 4 PointTrans-Light BluePart 11127Element 6248885 or 6019570×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 75157-1[No Color/Any Color]Part 26843Element 6153190 or 6153189×1
Minifigures
5 figures
Clone Commander Wolffe, OldMinifigure, checked as a whole figure×1
Clone Commander Gregor, OldMinifigure, checked as a whole figure×1
Stormtrooper, Dark Azure Helmet Vents, Angry (Rebels)Minifigure, checked as a whole figure×1
Imperial Inquisitor Fifth Brother - Dark Bluish GreyMinifigure, checked as a whole figure×1
Captain Rex, OldMinifigure, 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.