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.
1,192 pieces in 240 part and color combinations, plus 6 minifigures.
The official piece count includes the 24 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 1 x 2Black ×14Dark Bluish Gray ×12Black is darker than Dark Bluish Gray.
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom PinBlack ×4Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Tile 1 x 6 with GrooveBlack ×4Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Tile 2 x 4 with GrooveBlack ×3Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 Grille with Bottom GrooveBlack ×6Dark Bluish Gray ×36Black is darker than Dark Bluish Gray.
Wheel 11 x 8 with Center GrooveLight Bluish GrayPart 42610Element 4211758×4
Wheel 30.4 x 20 without Pinholes, with Reinforced RimLight Bluish GrayPart 56145Element 4297210×2
Bars, Ladders and Fences
6 pieces
Antenna 1 x 4 with Flat TopLight Bluish GrayPart 3957bElement 4211473×1
Bar 3LLight Bluish GrayPart 87994Element 6093527 or 60640331 spare in the box×2
Lever Small Base with Black LeverRedPart 298c02Element 743352 spares in the box×3
Technic Gears
3 pieces
Technic Gear 12 Tooth BevelTanPart 6589Element 4565452 or 4514556×3
Containers
2 pieces
Container Box 2 x 2 x 2 - Top OpeningDark Bluish GrayPart 61780Element 4520307×2
Large Buildable Figures
2 pieces
Large Figure Weapon, Barrel with 2 Pin Holes and 3 Axle HolesTrans-Light BluePart 98585Element 6503210 or 6248915×2
Transportation - Land
2 pieces
Wheel Arch, Mudguard 4 x 2 1/2 x 1Dark Bluish GrayPart 98282Element 6170503 or 4646522×2
Minifig Headwear
1 piece
Helmet Mandalorian with Holes, Dark Brown Facial Details PrintDark RedPart 87610pr0005Element 6115457×1
Minifig Headwear Accessories
1 piece
Headwear Accessory Rangefinder for Helmet, with Holes (Star Wars Clone Trooper)Dark Bluish GrayPart 635863 spares in the box×1
Minifig Upper Body
1 piece
Arm Mechanical with Clip [Thick Support]Dark Bluish GrayPart 98313Element 6276870 or 6012812×1
Stickers
1 piece
Sticker Sheet for Set 75106-1[No Color/Any Color]Part 21516Element 6116834 or 6116833×1
Technic Special
1 piece
Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin HolesBlackPart 6585Element 6169982 or 4500902×1
Technic Steering, Suspension and Engine
1 piece
Technic Steering Knuckle Arm with Ball JointLight Bluish GrayPart 6572Element 4211711×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Transportation - Sea and Air
1 piece
Technic Cylinder 4 x 4 with Pin Holes and Centre Bar, Closed Sides on BarLight Bluish GrayPart 41531Element 4507052 or 4285324×1
Windscreens and Fuselage
1 piece
Windscreen 3 x 4 x 1 1/3 with 2 Studs on TopTrans-BrownPart 2437Element 6507913 or 6253360×1
Minifigures
6 figures
TIE Pilot, Plain Legs, Printed Light Nougat Head (Rebels)Minifigure, checked as a whole figure×2
Imperial Officer / Captain / Commandant / Commander, Dark Tan UniformMinifigure, checked as a whole figure×1
Sabine Wren with Dark Blue and Orange HairMinifigure, checked as a whole figure×1
Astromech Droid, Imperial, Black R3-SeriesMinifigure, checked as a whole figure×1
Agent Alexsandr Kallus, HairMinifigure, 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.