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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.

Millennium Falcon (Blue Box Version)

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4504 Millennium Falcon (Blue Box Version)

979 pieces in 167 part and color combinations, plus 5 minifigures.

LEGO counts 985 pieces. This inventory comes from a separate parts catalog and lists 997, including the 18 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.

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Piece checklist

Plates 180 pieces

  • Plate 1 x 6 Black Part 3666 Element 366626 ×5
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×2
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×12
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 ×4
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×11
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×33
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×16
  • Plate 8 x 8 Dark Bluish Gray Part 41539 Element 4210802 ×10
  • Plate 1 x 2 Dark Red Part 3023 Element 4539097 or 4162582 ×33
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×6
  • Plate 4 x 12 Light Bluish Gray Part 3029 Element 4211401 ×1
  • Plate 4 x 6 Light Bluish Gray Part 3032 Element 4211404 ×12
  • Plate 6 x 6 Light Bluish Gray Part 3958 Element 4211474 ×3
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×7
  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×14
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×7
  • Plate 2 x 8 Tan Part 3034 Element 4113988 or 303405 ×2
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×2

Plates Special 116 pieces

  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Black Part 4623 Element 4597267 or 462326 ×6
  • Plate Special 4 x 4, Studs on One Edge Plain] Black Part 6179 Element 617926 ×1
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×1
  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×6
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Bluish Gray Part 3794a ×10
  • Plate Special 1 x 4 Offset with Bar Holes Dark Bluish Gray Part 4590 Element 6302647 or 6086709 ×2
  • Plate Special 8 x 8 with Grille [No Hole in Center] Dark Bluish Gray Part 4151a ×2
  • Plate Special 3 x 2 with Rounded End, Hole Dark Red Part 3176 Element 4568753 or 4217788 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Light Bluish Gray Part 6019 Element 4211518 ×35
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×2
  • Plate Special 6 x 6 x 2/3 Cross with Dome Light Bluish Gray Part 30303 Element 4211611 ×4
  • Plate Special Round 8 x 8 with 2 x 2 Center Studs with Groove Light Bluish Gray Part 6177b Element 4625582 or 4211661 ×1
  • Plate Special 2 x 2 with Pin on Bottom Reddish Brown Part 2476a Element 4237087 or 4216217 ×18
  • Plate Special 1 x 2 [Side Handle Closed Ends] Tan Part 48336 Element 4217562 ×24
  • Plate Special 2 x 2 with 2 Pin Holes Yellow Part 2817 Element 4219766 or 4107088 ×3

Bricks Sloped 109 pieces

  • Brick Sloped 45° 2 x 2 with '000195', Death Star Trench Computer Print Black Part 3039pr0008 Element 6032086 or 4215149 ×1
  • Brick Sloped 45° 2 x 3 Dark Bluish Gray Part 3038 Element 4218188 ×4
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×14
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×12
  • Brick Sloped 45° 2 x 2 Double Convex Light Bluish Gray Part 3045 Element 4216250 ×2
  • Brick Sloped 45° 2 x 4 Light Bluish Gray Part 3037 Element 4211409 ×2
  • Brick Sloped 45° 2 x 8 Light Bluish Gray Part 4445 Element 4509914 or 4215352 ×4
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Light Bluish Gray Part 3678b Element 4234535 or 4215353 ×20
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Light Bluish Gray Part 3747a Element 4500465 ×7
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Light Bluish Gray Part 4287b ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Tan Part 3040b Element 4121972 or 4113989 ×24
  • Brick Sloped 45° 2 x 2 Tan Part 3039 Element 4114322 ×11
  • Brick Sloped Inverted 45° 2 x 2 Double Convex Tan Part 3676 Element 6222432 or 6109871 ×6
  • Brick Sloped Inverted 65° 6 x 6 x 2 Quad with Cutouts Tan Part 30373 Element 4221993 or 4143349 ×1

Bricks 89 pieces

  • Brick 2 x 4 Black Part 3001 Element 300126 ×27
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×6
  • Brick 1 x 8 Dark Bluish Gray Part 3008 Element 4211099 ×8
  • Brick 2 x 2 Dark Orange Part 3003 Element 6212081 or 4597486 ×7
  • Brick 2 x 3 Dark Red Part 3002 Element 4163453 ×2
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×11
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×23
  • Brick 2 x 2 Corner Tan Part 2357 Element 4124455 or 4112541 ×4
  • Brick 2 x 6 Yellow Part 2456 Element 4181143 or 245624 ×1

Plates Round Curved and Dishes 64 pieces

  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Dish 3 x 3 Inverted [Radar] Dark Bluish Gray Part 43898 Element 4210865 ×1
  • Dish 6 x 6 Inverted (Radar) with Hollow Studs Dark Bluish Gray Part 44375a Element 4210880 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 1 spare in the box ×6
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×1
  • Plate Round Corner 4 x 4 Light Bluish Gray Part 30565 Element 4579294 or 4211662 ×16
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Tan Part 2654 Element 4278422 or 4140561 ×29
  • Dish 4 x 4 Inverted [Radar] with Millennium Falcon Cockpit Print Trans-Clear Part 3960pr9980 Element 4220046 ×1
  • Dish 2 x 2 Inverted [Radar] Trans-Light Blue Part 4740 Element 6580378 or 6245307 ×1
  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 1 spare in the box ×5

Tiles 64 pieces

  • Tile 1 x 2 with Yellow and Orange Display Print Black Part 3069bpr0042 Element 4221986 or 4107120 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×1
  • Tile 1 x 2 with Joystick and Vehicle Control Panel Print Dark Bluish Gray Part 3069bpr0090 Element 4221879 ×3
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×26
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×27
  • Tile 1 x 4 with Groove Tan Part 2431 Element 4550324 or 4542398 ×6

Plates Wedged 51 pieces

  • Wedge Plate 3 x 6 Cut Corners Dark Bluish Gray Part 2419 Element 4210984 ×4
  • Wedge Plate 4 x 4 Cut Corner Dark Bluish Gray Part 30503 Element 4210728 ×2
  • Wedge Plate 4 x 4 with 2 x 2 Cutout Dark Bluish Gray Part 43719 Element 6430611 or 6275402 ×5
  • Wedge Plate 12 x 3 Left Light Bluish Gray Part 47397 Element 4208988 ×12
  • Wedge Plate 12 x 3 Right Light Bluish Gray Part 47398 Element 4209006 ×12
  • Wedge Plate 8 x 4 Wing Left Light Bluish Gray Part 3933 Element 4211467 ×8
  • Wedge Plate 8 x 4 Wing Right with Stud Notch Light Bluish Gray Part 3934 Element 4211468 ×8

Bricks Round and Cones 49 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×3
  • Cone 1 x 1 [No Top Groove] Dark Bluish Gray Part 4589 Element 4518486 or 4210647 ×4
  • Brick Round 2 x 2 with Axle Hole Light Bluish Gray Part 3941 Element 4211526 ×2
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch Light Bluish Gray Part 3063b Element 4215385 ×16
  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs Light Bluish Gray Part 48092 Element 6452524 or 4215472 ×8
  • Cone Half 8 x 4 x 6 Light Bluish Gray Part 47543 Element 6276081 or 4629798 ×1
  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×14
  • Cone Half 8 x 4 x 6 with Millennium Falcon Cockpit Print Trans-Clear Part 47543pr0009 Element 4217435 ×1

Hinges, Arms and Turntables 42 pieces

  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Brick 1 x 2 Locking with 1 Finger Horizontal End Black Part 30541 Element 6263485 or 4143751 ×1
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Black Part 30553 Element 4143372 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×2
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×3
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 9 Teeth Light Bluish Gray Part 30365 Element 4211694 ×1
  • Hinge Brick 1 x 4 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Bluish Gray Part 30387 Element 4211695 ×8
  • Hinge Brick 1 x 6 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Bluish Gray Part 30388 Element 4211696 ×20
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×3
  • Hinge Brick 1 x 2 Top Plate Thin Tan Part 3938 Element 4519979 or 4124464 ×1

Tiles Special 40 pieces

  • Tile Special Round 2 x 2 - Thin Lifting Ring Black Part 2376 Element 237626 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×15
  • Tile Special 2 x 2 with Top Pin Dark Bluish Gray Part 2460 Element 4211129 ×3
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Orange Part 2412b Element 6228922 or 4218193 ×8
  • Tile Special 1 x 2 Grille with Bottom Groove Sand Blue Part 2412b Element 4143269 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips Tan Part 2555 Element 6030709 or 4542411 ×11

Bricks Special 26 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×3
  • Brick Special 1 x 2 with 2 Pins, Round Pin Holes Blue Part 30526 Element 4522302 or 4158266 ×4
  • Brick Special 2 x 4, with 2 x 2 Brick with Top Pin and 1 x 2 Side Plates Light Bluish Gray Part 30592 Element 6301425 or 6278504 ×1
  • Brick Special 1 x 2 Palisade [aka Log] Tan Part 30136 Element 4218749 or 4114053 ×18

Technic Bricks 23 pieces

  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Black Part 32064b ×6
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×1
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×1
  • Technic Brick 1 x 6 [5 Pin Holes] Dark Bluish Gray Part 3894 Element 4210917 or 3894199 ×5
  • Technic Brick 1 x 14 [13 Pin Holes] Light Bluish Gray Part 32018 Element 4211705 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×4
  • Technic Brick 1 x 1 with Pin Hole Tan Part 6541 Element 4179771 or 654105 ×2

Technic Special 20 pieces

  • Technic Brick 1 x 2 - 1 x 2 Angled with Bumper Holder [Closed Front] Black Part 2991 Element 4114238 ×10
  • Technic Disc 3 x 3 Black Part 2723 Element 4218868 or 4121619 ×10

Technic Pins 16 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×10
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×6

Minifig Accessories 13 pieces

  • Equipment Binoculars Dark Bluish Gray Part 30162 Element 4587887 or 4211051 ×2
  • Equipment Sextant Dark Bluish Gray Part 30154 Element 6269999 or 4217675 ×2
  • Equipment Space Binoculars / Scanner / Electrobinoculars Dark Bluish Gray Part 30304 Element 6359935 or 4211124 ×1
  • Tap 1 x 1 with Hole in Spout Dark Red Part 4599a ×8

Bars, Ladders and Fences 12 pieces

  • Bar 4L (Lightsaber Blade / Wand) Light Bluish Gray Part 30374 Element 6116608 or 4211628 ×4
  • Lever Small Base with Black Lever Light Bluish Gray Part 298c02 Element 4221775 1 spare in the box ×4
  • Bar 1 x 4 x 2 with Studs Tan Part 4083 Element 4561801 or 4218194 ×4

Supports, Girders and Cranes 8 pieces

  • Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Dark Bluish Gray Part 3940b Element 4211110 ×8

Transportation - Land 7 pieces

  • Handlebars Black Part 30031 Element 3003126 ×1
  • Seat / Chair 2 x 2 Dark Orange Part 4079 ×4
  • Steering Wheel Small, 2 x 2 Yellow Part 30663 Element 4219173 ×2

Bricks Curved 6 pieces

  • Brick Arch 1 x 6 Black Part 3455 Element 345526 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Light Bluish Gray Part 6091 Element 6285778 or 4211519 ×3
  • Brick Curved 8 x 6 x 2 Double Light Bluish Gray Part 45411 Element 4219206 ×1
  • Brick Curved Inverted 8 x 6 x 2 Double Light Bluish Gray Part 45410 Element 6274686 or 4219207 ×1

Bricks Wedged 6 pieces

  • Brick Wedged, Angled 3 x 2 Left Dark Bluish Gray Part 6565 Element 4214584 ×1
  • Brick Wedged, Angled 3 x 2 Right Dark Bluish Gray Part 6564 Element 4214583 ×1
  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs Dark Bluish Gray Part 45677 Element 4210940 ×1
  • Brick Wedged, Sloped 45° 6 x 6 Double / 33° [Train Roof End] Light Bluish Gray Part 2876 Element 4219039 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Left Tan Part 43721 Element 4180521 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Right Tan Part 43720 Element 4180529 ×1

Minifig Shields, Weapons, & Tools 6 pieces

  • Tool Drill, Electric Black Part 55297 ×1
  • Tool Hammer Cross Pein [6-Rib Handle] Black Part 55295 ×1
  • Tool Oil Can [Smooth Handle] Black Part 55296 ×1
  • Tool Screwdriver with Narrow Head [6-Rib Handle] Black Part 55298 ×1
  • Tool Wrench / Spanner Open End [6-Rib Handle] Black Part 55299 ×1
  • Tool Wrench / Spanner, Box [6-Rib Handle] Black Part 55300 ×1

Minifig Heads 5 pieces

  • Minifig Head [Plain] [Blocked Open Stud] Trans-Light Blue Part 3626b Element 4190262 or 4101660 ×5

Tiles Round and Curved 5 pieces

  • Tile Round 2 x 2 with Dejarik Hologameboard Print Black Part 4150pr0039 Element 4140519 ×1
  • Tile Round 2 x 2 with Fine Mesh Grill Print Light Bluish Gray Part 4150pr0022 Element 4221881 ×2
  • Tile Round 2 x 2 with SW Radial Machinery Print Light Bluish Gray Part 4150pr0021 Element 4551325 ×2

Transportation - Sea and Air 4 pieces

  • Tail Shuttle - Small Dark Bluish Gray Part 44661 Element 4582820 or 4184299 ×4

Technic Axles 3 pieces

  • Technic Axle 3 with Stud Dark Bluish Gray Part 6587 Element 6587199 or 6129590 ×1
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2

Tubes and Hoses 3 pieces

  • Hose, Ribbed 7mm D. 31L / 24.8cm Trans-Light Blue Part 78c31 Element 4275329 or 4140410 ×1
  • Hose, Ribbed 7mm D. 6L / 4.8cm Trans-Light Blue Part 78c06 Element 4275398 or 4221887 ×2

Containers 2 pieces

  • Box 2 x 2 x 2 [Hollow Studs] Light Bluish Gray Part 4345b Element 4211491 ×1
  • Box 2 x 2 x 2 Door with Slot Trans-Clear Part 4346 Element 6499105 or 6247357 ×1

Panels 2 pieces

  • Panel 1 x 2 x 2 [Hollow Studs] White Part 4864b ×2

Windows and Doors 2 pieces

  • Door 1 x 3 x 1 Left Dark Bluish Gray Part 3822 Element 6436223 or 4219205 ×1
  • Door 1 x 3 x 1 Right Dark Bluish Gray Part 3821 Element 6436222 or 4219204 ×1

Large Buildable Figures 1 piece

  • Large Figure Shield 5 x 5 with Gear Tips Dark Orange Part 44938 Element 4219764 ×1

Minifig Headwear 1 piece

  • Hood Fur-lined with Tan and Brown Fur Print Dark Blue Part 30287pr0001 Element 4552592 or 4221770 ×1

Stickers 1 piece

  • Sticker Sheet for Sets 4504-1, 4504-2 [No Color/Any Color] Part 48980 Element 4221406 ×1

Technic Beams 1 piece

  • Technic Beam 1 x 7 Thin Light Bluish Gray Part 32065 Element 4211625 ×1

Technic Bushes 1 piece

  • Technic Bush Black Part 3713 Element 6332148 or 6210506 1 spare in the box ×1

Technic Connectors 1 piece

  • Technic Axle and Pin Connector Toggle Joint Smooth Black Part 32126 Element 6457112 or 6322045 ×1

Minifigures 5 figures

  • Chewbacca, Reddish Brown Minifigure, checked as a whole figure ×1
  • C-3PO, Pearl Light Gold Minifigure, checked as a whole figure ×1
  • Princess Leia, Hoth Outfit, Tan Jacket, Reddish Brown Hair Minifigure, checked as a whole figure ×1
  • Han Solo, Hoth Outfit, Dark Blue Jacket, Tan Legs Minifigure, checked as a whole figure ×1
  • Snowtrooper, Light Bluish Gray Hips, Plain Black Head, Black Hands 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

Buy the piece

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.