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LEGO Missing Piece Checker

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.

Super Star Destroyer

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10221 Super Star Destroyer

3,128 pieces in 174 part and color combinations, plus 5 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.

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Piece checklist

Light Bluish Gray 1,305 pieces

  • Brick 1 x 2 x 2 with Inside Stud Holder Light Bluish Gray Part 3245c Element 4211564 ×19
  • Brick 2 x 3 Light Bluish Gray Part 3002 Element 4211386 ×5
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×2
  • Brick Round 2 x 2 with Axle Hole Light Bluish Gray Part 3941 Element 4211526 ×14
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×7
  • Brick Sloped 45° 2 x 2 Light Bluish Gray Part 3039 Element 4211410 ×14
  • Brick Sloped 45° 2 x 8 Light Bluish Gray Part 4445 Element 4509914 or 4215352 ×4
  • Brick Sloped 65° 2 x 1 x 2 Light Bluish Gray Part 60481 Element 4515374 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Light Bluish Gray Part 3747b Element 4211570 ×4
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Light Bluish Gray Part 4287b ×4
  • Brick Sloped Inverted 45° 2 x 1 Light Bluish Gray Part 3665 Element 4211437 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Light Bluish Gray Part 87087 Element 4558953 ×1
  • Brick Special 1 x 4 with Groove Light Bluish Gray Part 2653 Element 4211613 ×64
  • Brick Special 2 x 2 with Pin and Axle Hole Light Bluish Gray Part 6232 Element 6347704 or 4211529 ×2
  • Cylinder 3 x 6 x 2 2/3 Horizontal Hollow Studs Light Bluish Gray Part 30360 Element 4211847 ×7
  • Hose Rigid 3mm D. 8L / 6.4cm Light Bluish Gray Part 75c08 Element 4514192 ×2
  • Plate 1 x 12 Light Bluish Gray Part 60479 Element 4514846 ×57
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×35
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×53
  • Plate 2 x 12 Light Bluish Gray Part 2445 Element 4211360 ×61
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×46
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×6
  • Plate 2 x 8 Light Bluish Gray Part 3034 Element 4211406 ×8
  • Plate 4 x 12 Light Bluish Gray Part 3029 Element 4211401 ×23
  • Plate 4 x 6 Light Bluish Gray Part 3032 Element 4211404 ×2
  • Plate 4 x 8 Light Bluish Gray Part 3035 Element 4211407 ×3
  • Plate 6 x 12 Light Bluish Gray Part 3028 Element 4211400 ×7
  • Plate 6 x 6 Light Bluish Gray Part 3958 Element 4211474 ×1
  • Plate 6 x 8 Light Bluish Gray Part 3036 Element 4211408 ×1
  • Plate 8 x 16 Light Bluish Gray Part 92438 Element 4598522 ×6
  • Plate 8 x 8 Light Bluish Gray Part 41539 Element 4166618 ×6
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×3
  • Plate Special 1 x 2 Side Handle [Free Ends] Light Bluish Gray Part 2540 Element 4211632 ×100
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×96
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Light Bluish Gray Part 3839b Element 4211464 ×8
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Light Bluish Gray Part 92593 Element 4599498 ×31
  • Plate Special 6 x 12, Studs on 3 Edges Light Bluish Gray Part 6178 Element 4211836 ×12
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Light Bluish Gray Part 32064b ×13
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×26
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×49
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×94
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×188
  • Wedge Plate 12 x 3 Left Light Bluish Gray Part 47397 Element 4208988 ×53
  • Wedge Plate 12 x 3 Right Light Bluish Gray Part 47398 Element 4209006 ×53
  • Wedge Plate 2 x 4 Light Bluish Gray Part 51739 Element 4507056 or 4252368 ×7
  • Wedge Plate 4 x 2 Left Light Bluish Gray Part 41770 Element 4211735 ×11
  • Wedge Plate 4 x 2 Right Light Bluish Gray Part 41769 Element 4211732 ×11
  • Wedge Plate 4 x 6 Cut Corners Light Bluish Gray Part 32059 Element 4211725 ×2
  • Wedge Plate 6 x 3 Left Light Bluish Gray Part 54384 Element 4282789 ×34
  • Wedge Plate 6 x 3 Right Light Bluish Gray Part 54383 Element 4282786 ×34
  • Wedge Plate 6 x 6 Cut Corner Light Bluish Gray Part 6106 Element 4211520 ×6
  • Wedge Plate 8 x 3, 22° Left Light Bluish Gray Part 50305 Element 4258275 or 4228302 ×1
  • Wedge Plate 8 x 3, 22° Right Light Bluish Gray Part 50304 Element 4258273 or 4228300 ×1

Dark Bluish Gray 872 pieces

  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×4
  • Brick 1 x 8 Dark Bluish Gray Part 3008 Element 4211099 ×3
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×31
  • Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End Dark Bluish Gray Part 47457 Element 4218696 ×4
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×26
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Dark Bluish Gray Part 3678b Element 4234534 or 4210760 ×2
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Dark Bluish Gray Part 4460b Element 4221745 ×2
  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×18
  • Brick Special 1 x 4 with 4 Studs on One Side Dark Bluish Gray Part 30414 Element 4210725 ×1
  • Plate 1 x 10 Dark Bluish Gray Part 4477 Element 4257526 or 4210816 ×18
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×14
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 Also in Black ×49
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 ×21
  • Plate 2 x 16 Dark Bluish Gray Part 4282 Element 4210796 ×22
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×36
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×38
  • Plate 4 x 12 Dark Bluish Gray Part 3029 Element 4210706 ×5
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 Also in Black ×2
  • Plate 4 x 8 Dark Bluish Gray Part 3035 Element 4211061 ×8
  • Plate 6 x 10 Dark Bluish Gray Part 3033 Element 4211114 ×2
  • Plate 6 x 12 Dark Bluish Gray Part 3028 Element 4256149 or 4210657 ×6
  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 5 spares in the box ×104
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×31
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Bluish Gray Part 4081b Element 6281996 or 4632574 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Dark Bluish Gray Part 3794b Element 4211119 ×23
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×97
  • Plate Special 4 x 6 with Trap Door Hinge [Long Pins] Dark Bluish Gray Part 92099 Element 4595710 ×10
  • Plate Special 8 x 8 with Grille [Hole in Center] Dark Bluish Gray Part 4151b Element 6471953 or 4299022 ×2
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×2
  • Technic Brick 1 x 12 [11 Pin Holes] Dark Bluish Gray Part 3895 Element 4210963 ×32
  • Technic Brick 1 x 6 [5 Pin Holes] Dark Bluish Gray Part 3894 Element 4210917 or 3894199 Also in Black ×16
  • Technic Slope Short (Wing Front) Dark Bluish Gray Part 2743 Element 4273814 ×14
  • Tile Special 1 x 1 with Clip and Straight Tips Dark Bluish Gray Part 2555 Element 6031420 or 4211069 4 spares in the box ×185
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 Also in Black ×9
  • Wedge Plate 12 x 3 Left Dark Bluish Gray Part 47397 Element 4586562 or 4209004 ×9
  • Wedge Plate 12 x 3 Right Dark Bluish Gray Part 47398 Element 4209014 ×9
  • Wedge Plate 4 x 4 Cut Corner Dark Bluish Gray Part 30503 Element 4210728 ×14
  • Wedge Plate 8 x 8 Cut Corner Dark Bluish Gray Part 30504 Element 4547222 or 4210956 ×2

Black 456 pieces

  • Brick 1 x 4 Black Part 3010 Element 301026 ×4
  • Brick 2 x 6 Black Part 2456 Element 4181144 or 245626 ×1
  • Brick Curved 10 x 1 [Asymmetric Inside Ridges] Black Part 85970 Element 4567440 ×8
  • Brick Curved 3 x 1 No Studs Black Part 50950 Element 4251161 ×8
  • Brick Curved 6 x 1 Black Part 42022 Element 4160393 ×8
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Black Part 4287b ×24
  • Brick Special 1 x 2 with Studs on 2 Sides Black Part 52107 Element 4253815 ×37
  • Brick Wedged, Sloped 2 x 16 Triple Black Part 30382 Element 6369843 or 4584332 ×4
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×6
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×8
  • Plate 1 x 4 Black Part 3710 Element 371026 Also in Dark Bluish Gray ×8
  • Plate 1 x 6 Black Part 3666 Element 366626 ×8
  • Plate 2 x 10 Black Part 3832 Element 383226 ×14
  • Plate 2 x 12 Black Part 2445 Element 244526 ×26
  • Plate 2 x 3 Black Part 3021 Element 302126 ×10
  • Plate 4 x 6 Black Part 3032 Element 303226 Also in Dark Bluish Gray ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Black Part 60470b Element 6310268 or 4556158 ×4
  • Plate Special 1 x 2, Top Clip [Split] Black Part 92280 Element 4598528 ×2
  • Plate Special 1 x 8 with Door Rail Black Part 4510 Element 4286009 or 451026 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×7
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×8
  • Technic Axle 4 Black Part 3705 Element 370526 ×7
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×8
  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×8
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×8
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×8
  • Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 Also in Dark Bluish Gray ×12
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 5 spares in the box ×128
  • Technic Plate 2 x 6 [5 Holes] Black Part 32001 Element 3200126 ×51
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×6
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×2
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Tile 8 x 16 with Bottom Tubes Black Part 90498 Element 4603646 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 Also in Dark Bluish Gray ×8
  • Weapon Gun / Blaster Long (Star Wars) Black Part 57899 Element 4498712 ×3
  • Weapon Gun / Blaster Short (Star Wars) Black Part 58247 Element 4498713 ×1

Blue 119 pieces

  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Blue Part 73983 Element 6102759 or 4119371 ×22
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Blue Part 4032a Element 403223 ×10
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×11
  • Technic Beam 1 x 3 Thick Blue Part 32523 Element 4509376 or 4144284 ×6
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 3 spares in the box ×32
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×30
  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×8

Red 112 pieces

  • Hinge Brick 2 x 2 Top Plate Thin Red Part 6134 Element 613421 ×2
  • Plate 1 x 4 Red Part 3710 Element 371021 ×21
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×16
  • Plate 2 x 4 Red Part 3020 Element 302021 ×14
  • Plate Special 1 x 2, Top Clip [Split] Red Part 92280 Element 4597713 ×24
  • Plate Special 2 x 2 with 2 Pin Holes Red Part 2817 Element 281721 ×6
  • Technic Beam 1 x 5 Thick Red Part 32316 Element 4142132 or 4128589 ×8
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Red Part 32054 Element 4140806 or 4125198 ×8
  • Technic Plate 2 x 4 [3 Holes] Red Part 3709 Element 370921 ×9
  • Technic Plate 2 x 8 [7 Holes] Red Part 3738 Element 373821 ×2
  • Wedge Plate 3 x 3 Cut Corner Red Part 2450 Element 245021 ×2

Dark Tan 93 pieces

  • Plate 1 x 2 Dark Tan Part 3023 Element 4528604 or 4497082 ×93

White 48 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] White Part 2436 Element 4282737 or 4159314 ×30
  • Brick 1 x 10 White Part 6111 Element 6619291 or 611101 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×6
  • Brick Sloped Inverted 45° 4 x 4 Double with 4 x 2 Recessed White Part 4854 Element 4643315 or 4603492 ×1
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×5
  • Plate 4 x 6 White Part 3032 Element 303201 ×2
  • Plate Special 1 x 8 with Door Rail White Part 4510 Element 6619290 or 4501853 ×2

Tan 44 pieces

  • Plate 1 x 8 Tan Part 3460 Element 4114324 or 346005 ×41
  • Plate 4 x 4 Tan Part 3031 Element 4243824 or 4113919 ×3

Yellow 42 pieces

  • Brick 1 x 3 Yellow Part 3622 Element 362224 ×12
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Yellow Part 2444 Element 244424 ×24
  • Technic Brick 5 x 5 Right Angle (1 x 4 - 1 x 4) Yellow Part 32555 Element 6222428 or 4257699 ×6

Trans-Orange 15 pieces

  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Orange Part 2654 Element 6513980 or 6171727 ×15

Trans-Red 9 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Red Part 30374 Element 6507880 or 6167284 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×8

Trans-Light Blue 4 pieces

  • Brick Round 1 x 1 with Emperor Palpatine / Darth Sidious Print Trans-Light Blue Part 3062bpr0037 Element 6022391 or 4631695 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Light Blue Part 6141 Element 6514058 or 6240225 1 spare in the box ×3

Green 2 pieces

  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×2

Reddish Brown 2 pieces

  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 1 spare in the box ×2

Trans-Clear 2 pieces

  • Bar 1 x 12 with 1 x 2 Plate End with Solid Studs and 1 x 1 Round Plate End Trans-Clear Part 42445 Element 6276993 or 4169199 ×2

Metallic Silver 1 piece

  • Weapon Lightsaber Hilt with Bottom Ring Metallic Silver Part 64567 Element 6546103 or 6051389 ×1

Pearl Light Gray 1 piece

  • Plate Special 1 x 1 with Tooth Pearl Light Gray Part 49668 Element 4293006 or 4263416 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 10221-1 [No Color/Any Color] Part 10010521 Element 6005049 ×1

Minifigures 5 figures

  • Darth Vader, Light Bluish Gray Skin, White Pupils (3626b Head) Minifigure, checked as a whole figure ×1
  • Bossk, Yellow Outfit Minifigure, checked as a whole figure ×1
  • Dengar, White Head, Reddish Brown Legs Minifigure, checked as a whole figure ×1
  • IG-88, Printed Head Minifigure, checked as a whole figure ×1
  • Admiral Firmus Piett 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.

Request a replacement from LEGO

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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.