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.
783 pieces in 187 part and color combinations, plus 6 minifigures.
LEGO counts 798 pieces. This inventory comes from a separate parts catalog and lists 810, including the 27 parts inside the minifigures; 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.
Technic Axle Connector with Axle HoleRedPart 32039Element 4118897×2
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesRedPart 42003Element 6273712 or 4175442×4
Technic Beam 1 x 3 ThinRedPart 6632Element 6364451 or 4107824×2
Tan
6 pieces
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×4
Technic Pin Long without Friction RidgesTanPart 32556×2
Trans-Brown
4 pieces
Panel 1 x 2 x 3 - Solid StudsTrans-BrownPart 2362a×4
Dark Blue
3 pieces
Flag 2 x 2 Trapezoid with Flat Area between ClipsDark BluePart 44676Element 4529551 or 4261792×2
Plate 1 x 4Dark BluePart 3710Element 4502089 or 4177739×1
Trans-Clear
2 pieces
Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End)Trans-ClearPart 30359bElement 4164065×1
Dish 4 x 4 Inverted [Radar]Trans-ClearPart 3960Element 4166082 or 4125240×1
Trans-Yellow
2 pieces
Brick Round 2 x 2 with Axle HoleTrans-YellowPart 3941Element 6514285 or 6273155×2
Trans-Light Blue
1 piece
Bar 4L (Lightsaber Blade / Wand)Trans-Light BluePart 30374Element 6507882 or 6170187×1
Trans-Neon Green
1 piece
Bar 4L (Lightsaber Blade / Wand)Trans-Neon GreenPart 30374Element 6507881 or 6170186×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 7675-1[No Color/Any Color]Part 63676Element 4529536×1
Minifigures
6 figures
Captain Rex, VisorMinifigure, checked as a whole figure×1
Clone Trooper, Phase I Armor, Brown EyesMinifigure, checked as a whole figure×1
Battle Droid, Two Bent ArmsMinifigure, checked as a whole figure×1
Ahsoka Tano, Padawan, Light Bluish Gray LegsMinifigure, checked as a whole figure×1
RottaMinifigure, checked as a whole figure×1
Anakin Skywalker, Pilot Uniform (Clone Wars) (3626b Head)Minifigure, 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.