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.
Technic Brick 1 x 2 [1 Pin Hole]TanPart 3700Element 4205107 or 370005×1
Technic Gear 12 Tooth BevelTanPart 6589Element 4565452 or 4514556×1
Light Bluish Gray
13 pieces
Plate 4 x 4Light Bluish GrayPart 3031Element 4243797 or 4211403×2
Plate Special / Shield Rectangular with 4 Studs, HandleLight Bluish GrayPart 30166Element 6195471×1
Plate Special 1 x 2 5.9mm Centre Side Towball SocketLight Bluish GrayPart 14704Element 6414561 or 6338165×1
Plate Special 1 x 2 5.9mm Towball SocketLight Bluish GrayPart 14418Element 6414556 or 6338163×6
Plate Special Round 1 x 2 Half Circle with Stud (Jumper)Light Bluish GrayPart 1745Element 6510058 or 6420741×2
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole]Light Bluish GrayPart 65304Element 6321747×1
Trans-Black
13 pieces
Brick 1 x 2 without Bottom TubeTrans-BlackPart 3065Element 6513761×6
Ghost Effect with BarTrans-BlackPart 5500Element 6586826×1
Plate 1 x 2Trans-BlackPart 3023Element 6514010 or 6471727×6
Dark Bluish Gray
6 pieces
Plate Special 1 x 2 with 5.9mm Centre Side TowballDark Bluish GrayPart 14417Element 6414560 or 6338160×3
Plate Special 1 x 2 with End TowballDark Bluish GrayPart 22890Element 6370802 or 6338168×2
Technic Axle 4 with StopDark Bluish GrayPart 87083Element 6083620 or 4560177×1
Trans-Clear
6 pieces
Brick Round 2 x 2 with Axle HoleTrans-ClearPart 3941Element 6514281 or 6273152×1
Brick Round 4 x 4 Dome Top with Round 2 x 2 Recessed, 4 StudsTrans-ClearPart 79850Element 6503230 or 6360033×1
Dish 3 x 3 Inverted [Radar]Trans-ClearPart 43898Element 6507917 or 6244730×1
Support Half Round 2 x 4 x 13Trans-ClearPart 1749Element 6507798 or 6400117×1
Tile Round 1 x 1 with Bee PrintTrans-ClearPart 98138pr0428Element 64816081 spare in the box×1
Tile Round 1 x 1 with Dark Turquoise Beetle PrintTrans-ClearPart 98138pr0405Element 6532094 or 64908921 spare in the box×1
Bright Pink
4 pieces
Plate 1 x 4Bright PinkPart 3710Element 6002148 or 4245300×2
Plate 2 x 3Bright PinkPart 3021Element 6102999 or 4245290×1
Tile 2 x 4 with GrooveBright PinkPart 87079Element 6106713×1
Opal Trans-Clear
4 pieces
Windscreen 4 x 4 x 4 2/3 with HandleOpal Trans-ClearPart 11289Element 6584952×4
Red
2 pieces
Brick 2 x 3RedPart 3002Element 300271 or 300221×1
Plate 1 x 3RedPart 3623Element 362321×1
White
2 pieces
Brick Curved 4 x 1 Double, No StudsWhitePart 93273Element 6552143 or 6023806×1
Plate Special 1 x 2 Rounded with 2 Open StudsWhitePart 35480Element 6552167 or 6550175×1
Pearl Gold
1 piece
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Pearl GoldPart 15573Element 6092594×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 76461-1[No Color/Any Color]Part 10115115Element 6578992×1
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.