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.
LEGO counts 390 pieces. This inventory comes from a separate parts catalog and lists 394; the two do not always count the same elements, so their totals differ. 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.
Large Figure WingFlat SilverPart 60935Element 6040261 or 4609603×4
Large Figure Wing, SmallFlat SilverPart 61800Element 4609602×2
Large Figure Skeletal, Limb, Angular with Ball Joint and Ball Socket (Av-Matoran)Medium BluePart 60896Element 4539160×2
Large Figure Head Connector Block (Glatorian)Trans-Medium BluePart 64262Element 4537503×1
Technic Panels
16 pieces
Technic Panel Fairing #13 Large Short Smooth, Side ALight Bluish GrayPart 64394Element 6030217 or 4547586×2
Technic Panel Fairing #14 Large Short Smooth, Side BLight Bluish GrayPart 64680Element 6030215 or 4547585×2
Technic Panel Fairing #17 Large Smooth, Side ALight Bluish GrayPart 64392Element 6535136 or 6011805×1
Technic Panel Fairing #18 Large Smooth, Side BLight Bluish GrayPart 64682Element 6534868 or 4541413×1
Technic Panel Fairing #5 Long Smooth, Side ALight Bluish GrayPart 64681Element 6461850 or 4547584×1
Technic Panel Fairing #6 Long Smooth, Side BLight Bluish GrayPart 64393Element 6461844 or 4547583×1
Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel SurfaceYellowPart 62531Element 6417857 or 6211955×2
Technic Panel Fairing # 3 Small Smooth Long, Side AYellowPart 64683Element 6533795 or 6005195×2
Technic Panel Fairing # 4 Small Smooth Long, Side BYellowPart 64391Element 6533801 or 6005197×2
Technic Panel Fairing #13 Large Short Smooth, Side AYellowPart 64394Element 4558818×1
Technic Panel Fairing #14 Large Short Smooth, Side BYellowPart 64680Element 4558801×1
Technic Bushes
14 pieces
Technic BushLight Bluish GrayPart 3713Element 6275844 or 62718171 spare in the box×11
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedLight Bluish GrayPart 32123bElement 6271165 or 42115731 spare in the box×3
Technic Special
6 pieces
Technic Tooth 1 x 3 with Axle Hole [Rounded Underside]Trans-RedPart 41669Element 4163567×6
Projectiles / Launchers
5 pieces
Projectile, Large Figure Weapon, Zamor Sphere / BallFlat SilverPart 54821Element 4655097 or 4609596×4
Launcher, Large Figure Weapon Cannon, Midak Skyblaster with Black Housing [Complete Assembly]Pearl Light GrayPart 62233Element 4521177×1
Technic Gears
4 pieces
Technic Knob WheelYellowPart 32072Element 6284189 or 4203493×4
Tubes and Hoses
4 pieces
Hose, Ribbed 7mm D. 18L / 14.4cmPearl Light GrayPart 78c18Element 4495191 or 4275381×2
Axle Hose, Soft 19LYellowPart 32235Element 4588171 or 4142066×2
Bars, Ladders and Fences
2 pieces
Bar 4L (Lightsaber Blade / Wand)Trans-RedPart 30374Element 6507880 or 6167284×2
Minifig Accessories
2 pieces
Equipment Signal PaddleLight Bluish GrayPart 3900Element 4211753×2
Plates Round Curved and Dishes
2 pieces
Plate Round 1 x 1 with Solid StudTrans-RedPart 6141Element 6514051 or 62084501 spare in the box×2
String, Bands and Reels
2 pieces
Rubber Belt Small [15mm ID] [Round Cross Section]WhitePart 85543Element 6699001 or 4580665×2
Technic Beams Special
2 pieces
Technic Beam 3 x 0.5 Liftarm with Boss and Pin / CrankLight Bluish GrayPart 33299aElement 4211688×2
Wheels and Tyres
2 pieces
Wheel Hard Plastic with Small Cleats and FlangesDark Bluish GrayPart 64712Element 4540178×1
Wheel 56 x 34 Technic Racing Medium with 3 Pin HolesLight Bluish GrayPart 44772Element 4211845×1
Stickers
1 piece
Sticker Sheet for Set 7160-1[No Color/Any Color]Part 90067Element 4582479×1
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.