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.
741 pieces in 322 part and color combinations, plus 4 minifigures.
The official piece count includes the 16 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.
Panel 1 x 2 x 1 [Rounded Corners]White ×2Trans-Clear ×2Trans-Clear is see-through: hold the piece up to a light.
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Trans-Brown ×1Dark Bluish Gray ×1Trans-Brown is see-through: hold the piece up to a light.
Brick 1 x 4Black ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Plate 2 x 3Black ×3Dark Blue ×1Black is yellower and darker than Dark Blue.
Plate 2 x 8Black ×4Dark Blue ×2Black is yellower and darker than Dark Blue.
Plate Special 1 x 2 Rounded with 2 Open StudsBlack ×4Dark Blue ×1Black is yellower and darker than Dark Blue.
1 more look-alike pair
Technic Brick 1 x 1 with Pin HoleBlack ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top]Dark Bluish GrayPart 32530Element 4210763×2
Tile Special Round 2 x 2 with HoleDark Bluish GrayPart 15535Element 6055313×3
Magenta
33 pieces
Brick Curved 1 x 2 x 1 No StudsMagentaPart 37352Element 6294565×1
Brick Curved 2 x 1 No Studs [1/2 Bow]MagentaPart 11477Element 6070763×4
Panel 1 x 2 x 1 with Rounded Corners and 2 SidesMagentaPart 23969Element 6248482 or 6131870×3
Plant, Flower, Plate Round 1 x 1 with 5 PetalsMagentaPart 24866Element 62096821 spare in the box×2
Plate 1 x 1MagentaPart 3024Element 6096942 or 60144991 spare in the box×1
Plate 1 x 4MagentaPart 3710Element 6037652×2
Plate 1 x 8MagentaPart 3460Element 6109929 or 6014477×4
Plate 2 x 8MagentaPart 3034Element 6251299 or 4247092×1
Plate Round Corner 3 x 3MagentaPart 30357Element 6112979×1
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)MagentaPart 15573Element 6101073×2
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]MagentaPart 41740Element 6249090×1
Plate Special 2 x 2 with Groove and Center Stud (Jumper)MagentaPart 87580Element 6250075 or 6126069×2
Support 1 x 6 x 5 Girder RectangularMagentaPart 64448Element 6396108×1
Tile 1 x 2 with GrooveMagentaPart 3069bElement 4611415×2
Tile 1 x 4 with GrooveMagentaPart 2431Element 6078305 or 4621180×2
Tile 1 x 6 with GrooveMagentaPart 6636Element 6102821×1
Tile 2 x 2 with GrooveMagentaPart 3068bElement 6249234 or 4173214×1
Tile 4 x 4 Curved, MacaroniMagentaPart 27507Element 6458169 or 6199903×2
Dark Blue
31 pieces
Brick 1 x 1Dark BluePart 3005Element 6554189 or 4255413×3
Brick 1 x 2Dark BluePart 3004Element 4249891×1
Brick 1 x 4Dark BluePart 3010Element 4264569Also in Black×1
Brick 1 x 6Dark BluePart 3009Element 6554211 or 6221672×5
Brick 2 x 2Dark BluePart 3003Element 4296785 or 4264580×1
Brick Curved 2 x 1 No Studs [1/2 Bow]Dark BluePart 11477Element 6554198 or 6094143×2
Plate 1 x 3Dark BluePart 3623Element 6554187 or 4177735×2
Plate 2 x 3Dark BluePart 3021Element 6554192 or 4530028Also in Black×1
Plate 2 x 8Dark BluePart 3034Element 6027627 or 4530027Also in Black×2
Plate 6 x 8Dark BluePart 3036Element 6146302 or 6039675×2
Plate Round 1 x 1 with Solid StudDark BluePart 6141Element 6021623 or 41841121 spare in the box×2
Plate Round Corners 2 x 6 DoubleDark BluePart 18980Element 6362374×2
Plate Special 1 x 2 Rounded with 2 Open StudsDark BluePart 35480Element 6236571Also in Black×1
Plate Special 2 x 2 with Groove and Center Stud (Jumper)Dark BluePart 87580Element 6389696 or 4565320×3
Tile 1 x 2 with GrooveDark BluePart 3069bElement 6554190 or 4528488×1
Tile Round 1 x 1 QuarterDark BluePart 25269Element 6554207 or 61998901 spare in the box×2
Pearl Gold
27 pieces
Bar Holder with Hole and Bar HandlePearl GoldPart 23443Element 6296657 or 6197509×3
Equipment BinocularsPearl GoldPart 30162Element 60345431 spare in the box×1
Headwear Accessory Visor For Standard HelmetPearl GoldPart 2447Element 6357787 or 45691391 spare in the box×2
Hose Rigid 3mm D. 12L / 9.6cmPearl GoldPart 75c12Element 6267914×1
Hose Rigid 3mm D. 16L / 12.8cmPearl GoldPart 75c16Element 6436101 or 6173281×1
Hose Rigid 3mm D. 20L / 16cmPearl GoldPart 75c20Element 63963681 spare in the box×1
Hose Rigid 3mm D. 26L / 20.8cmPearl GoldPart 75c26Element 6322139×1
Plate Round 1 x 1 with Open StudPearl GoldPart 85861Element 6190252 or 61414991 spare in the box×1
Plate Round 1 x 1 with Solid StudPearl GoldPart 6141Element 45231591 spare in the box×6
Plate Special 1 x 1 Rounded with HandlePearl GoldPart 26047Element 6212377×1
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Pearl GoldPart 15573Element 6092594×1
Tile Special 1 x 1 with Clip with Rounded EdgesPearl GoldPart 15712Element 6262138 or 6071259×2
Tile Special 1 x 2 Grille with Bottom GroovePearl GoldPart 2412bElement 4490599×2
Tile Special Round 1 x 1 with Hollow BarPearl GoldPart 20482Element 6186672 or 61261131 spare in the box×3
Weapon Lightsaber Hilt with Bottom RingPearl GoldPart 64567Element 60031471 spare in the box×1
Blue
10 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×8
Technic Ball JointBluePart 32474Element 6224247×1
Technic Pin Long with Friction Ridges Lengthwise, 1 Center SlotBluePart 42924Element 6299413×1
Bright Light Blue
10 pieces
Door Frame 1 x 4 x 6 Type 2Bright Light BluePart 60596Element 6337279 or 6099508×4
Panel 1 x 6 x 5Bright Light BluePart 59349Element 6396107×2
Panel 4 x 4 x 6 Quarter CylinderBright Light BluePart 30562Element 6396106×2
Plate 2 x 6Bright Light BluePart 3795Element 6132422 or 6013812×1
Plate Round Half 4 x 8Bright Light BluePart 22888Element 6387468 or 6204113×1
Bright Light Orange
8 pieces
Brick 1 x 1Bright Light OrangePart 3005Element 6061685 or 4490694×1
Brick Arch 1 x 3 x 2 Curved TopBright Light OrangePart 6005Element 6335569 or 6175161×1
Brick Curved 1 x 2 x 1 1/3 with Curved TopBright Light OrangePart 6091Element 6374487 or 6023185×1
Brick Round 2 x 2 Sphere with Stud [Plain]Bright Light OrangePart 20953Element 6315913×1
Plate 1 x 1Bright Light OrangePart 3024Element 6073040 or 60287401 spare in the box×3
Plate 1 x 2Bright Light OrangePart 3023Element 6028736 or 4645043×1
Medium Azure
7 pieces
Brick Curved 2 x 4 x 2/3 No Studs, with Bottom TubesMedium AzurePart 88930Element 6186197 or 4655249×1
Panel 1 x 2 x 1 with Rounded Corners and Central DividerMedium AzurePart 93095Element 6671193 or 6133911×2
Plate 2 x 2Medium AzurePart 3022Element 6603309 or 4625032×2
Tile 1 x 4 with GrooveMedium AzurePart 2431Element 4624705×2
Trans-Clear
7 pieces
Brick 1 x 2 without Bottom TubeTrans-ClearPart 3065Element 6514262 or 6244904×1
Panel 1 x 2 x 1 [Rounded Corners]Trans-ClearPart 4865bElement 6514121 or 6246888Also in White×2
Tile 1 x 2 with Classic Space Logo, Cookies PrintTrans-ClearPart 3069bpr0357Element 6387335×2
Tile Round 1 x 1 with Bacteria PrintTrans-ClearPart 98138pr0197Element 6532090 or 63840691 spare in the box×1
Windscreen 4 x 6 x 1 RoundTrans-ClearPart 76796Element 6601426 or 6334522×1
Dark Purple
6 pieces
Plate Special 2 x 2 Splat Gear, 6 TeethDark PurplePart 35442Element 6238330×4
Tile 1 x 6 with GrooveDark PurplePart 6636Element 4619657×2
Trans-Purple
6 pieces
Brick 1 x 2 x 5 without Side SupportsTrans-PurplePart 46212Element 6514089 or 6350502×2
Panel 1 x 6 x 5Trans-PurplePart 59349Element 6245260 or 6096709×4
Lavender
5 pieces
Plate 4 x 6LavenderPart 3032Element 6334052×1
Plate 6 x 16LavenderPart 3027Element 6173053×1
Plate 8 x 8 with Rounded EndLavenderPart 41948Element 6273856×1
Plate Round Corner 6 x 6LavenderPart 6003Element 6609841 or 6278352×2
Trans-Light Blue
5 pieces
Glass for Window 1 x 4 x 6Trans-Light BluePart 57895Element 6581491 or 6256060×3
Plate Round 1 x 1 with Solid StudTrans-Light BluePart 6141Element 6514058 or 62402251 spare in the box×2
Coral
4 pieces
Brick 1 x 2CoralPart 3004Element 6258572×1
Tile 1 x 2 with GrooveCoralPart 3069bElement 6258566×3
Flat Silver
4 pieces
Creature Body Part, Horn (Unicorn)Flat SilverPart 89522Element 6214214 or 46128291 spare in the box×1
Equipment Cup / Mug [Plain]Flat SilverPart 3899Element 6236213×1
Tile Special 1 x 2 Grille with Bottom GrooveFlat SilverPart 2412bElement 4619636×2
Red
4 pieces
Brick Round 1 x 1 Open StudRedPart 3062bElement 306221×1
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)RedPart 4032aElement 403221×2
Technic Changeover Catch - New StyleRedPart 51149Element 6313493×1
Dark Tan
2 pieces
Geode / Rock with Glitter Trans-Dark Pink CrystalDark TanPart 49656pat0001Element 6514297 or 6264092×1
Technic Axle 3 with StudDark TanPart 6587Element 6031821 or 6013821×1
Orange
2 pieces
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Plate 1 x 2OrangePart 3023Element 4177932 or 4163009×1
Tan
2 pieces
Technic Pin Long without Friction Ridges, with Anti-Roll NotchTanPart 39888Element 6321305×2
Metallic Silver
1 piece
Dish 2 x 2 Inverted [Radar]Metallic SilverPart 4740Element 6528623 or 6277260×1
Trans-Brown
1 piece
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Trans-BrownPart 2654Element 6273713Also in Dark Bluish Gray×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 41713-1[No Color/Any Color]Part 10001510Element 6387462×1
Minifigures
4 figures
Olivia - Space SuitMinifigure, checked as a whole figure×1
William - Space SuitMinifigure, checked as a whole figure×1
Dr. VidyaMinifigure, checked as a whole figure×1
Julian - OverallMinifigure, 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.