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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.

The Panama Canal

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2000451 The Panama Canal

1,180 pieces in 168 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 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

Bricks 416 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 Also in Dark Bluish Gray ×1
  • Brick 2 x 3 Black Part 3002 Element 300226 ×1
  • Brick 2 x 6 Black Part 2456 Element 4181144 or 245626 ×1
  • Brick 2 x 8 Black Part 3007 Element 6037390 or 300726 ×1
  • Brick 1 x 3 Blue Part 3622 Element 362223 ×4
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×1
  • Brick 2 x 10 Blue Part 3006 Element 4615600 or 300623 ×1
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×5
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×1
  • Brick 2 x 6 Blue Part 2456 Element 4181139 or 245623 ×2
  • Brick 1 x 10 Dark Bluish Gray Part 6111 Element 4211107 ×8
  • Brick 1 x 16 Dark Bluish Gray Part 2465 Element 4210783 ×8
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 Also in Black ×20
  • Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×20
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×8
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×26
  • Brick 1 x 1 x 3 Light Bluish Gray Part 14716 Element 6061702 ×6
  • Brick 1 x 10 Light Bluish Gray Part 6111 Element 4211521 ×4
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×31
  • Brick 1 x 2 x 2 with Inside Stud Holder Light Bluish Gray Part 3245c Element 4211564 ×35
  • Brick 1 x 2 x 5 with Hollow Studs Light Bluish Gray Part 2454b Element 4211363 ×6
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×27
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×35
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×15
  • Brick 2 x 10 Light Bluish Gray Part 3006 Element 4617862 or 4211390 ×7
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×3
  • Brick 2 x 2 Corner Light Bluish Gray Part 2357 Element 4211349 ×13
  • Brick 2 x 3 Light Bluish Gray Part 3002 Element 4211386 ×5
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×12
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×15
  • Brick 2 x 8 Light Bluish Gray Part 3007 Element 6037399 or 4211391 ×1
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×1
  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×25
  • Brick 1 x 4 Reddish Brown Part 3010 Element 4211225 ×7
  • Brick 1 x 8 Reddish Brown Part 3008 Element 4263776 or 4245294 ×8
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×27
  • Brick 2 x 3 Reddish Brown Part 3002 Element 4216668 ×11
  • Brick 2 x 6 Reddish Brown Part 2456 Element 4286200 or 4216615 ×7
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×4
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×1

Plates 242 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate 1 x 3 Blue Part 3623 Element 362323 ×6
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×3
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×4
  • Plate 2 x 10 Blue Part 3832 Element 383223 ×2
  • Plate 2 x 12 Blue Part 2445 Element 244523 ×1
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×3
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×2
  • Plate 1 x 12 Dark Bluish Gray Part 60479 Element 6133611 or 4666604 ×8
  • Plate 2 x 12 Dark Bluish Gray Part 2445 Element 4211067 ×3
  • Plate 1 x 1 Green Part 3024 Element 302428 ×9
  • Plate 1 x 2 Green Part 3023 Element 302328 ×5
  • Plate 1 x 3 Green Part 3623 Element 4107758 or 362328 ×1
  • Plate 1 x 4 Green Part 3710 Element 371028 ×14
  • Plate 1 x 8 Green Part 3460 Element 346028 ×5
  • Plate 2 x 10 Green Part 3832 Element 383228 ×6
  • Plate 2 x 4 Green Part 3020 Element 302028 ×8
  • Plate 4 x 4 Green Part 3031 Element 4243821 or 4113158 ×4
  • Plate 4 x 6 Green Part 3032 Element 4116671 ×1
  • Plate 1 x 10 Light Bluish Gray Part 4477 Element 4251149 or 4211495 ×6
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×3
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×8
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×3
  • Plate 1 x 2 Medium Blue Part 3023 Element 4179825 or 4165460 ×15
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 2 x 6 Red Part 3795 Element 379521 ×1
  • Plate 1 x 10 Reddish Brown Part 4477 Element 4223683 ×4
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×24
  • Plate 1 x 3 Reddish Brown Part 3623 Element 4211152 ×2
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×24
  • Plate 1 x 6 Reddish Brown Part 3666 Element 4221590 ×9
  • Plate 2 x 12 Reddish Brown Part 2445 Element 4225700 ×2
  • Plate 2 x 14 Reddish Brown Part 91988 Element 6004996 ×6
  • Plate 2 x 2 Reddish Brown Part 3022 Element 4613975 or 4216695 ×1
  • Plate 2 x 3 Reddish Brown Part 3021 Element 4211189 ×1
  • Plate 2 x 8 Reddish Brown Part 3034 Element 4211211 ×2
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×4
  • Plate 1 x 2 Trans-Dark Blue Part 3023 Element 6514004 or 6240215 ×19
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×3
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×6

Tiles 101 pieces

  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×4
  • Tile 1 x 6 with Groove Blue Part 6636 Element 4118785 or 4108153 ×30
  • Tile 2 x 4 with Groove Blue Part 87079 Element 4654678 or 4560180 ×22
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 ×8
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×8
  • Tile 1 x 2 with Groove Green Part 3069b Element 306928 ×2
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×6
  • Tile 1 x 2 with Groove Medium Blue Part 3069b Element 4168345 ×2
  • Tile 1 x 3 Red Part 63864 Element 4533742 ×1
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×1
  • Tile 1 x 2 with Groove Tan Part 3069b Element 4114026 ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×6
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×1
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×1
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×1
  • Tile 1 x 3 Yellow Part 63864 Element 4558172 ×6

Bricks Sloped 93 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Blue Part 3747b Element 4509443 ×1
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Blue Part 4287b ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Bluish Gray Part 3040b Element 4211135 ×8
  • Brick Sloped 33° 3 x 1 Light Bluish Gray Part 4286 Element 4211488 ×15
  • Brick Sloped 33° 3 x 4 Light Bluish Gray Part 3297 Element 4211420 ×3
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Light Bluish Gray Part 15672 Element 6093859 ×6
  • Brick Sloped 65° 2 x 1 x 2 Light Bluish Gray Part 60481 Element 4515374 ×6
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Light Bluish Gray Part 4460b Element 4211494 ×6
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Light Bluish Gray Part 4287b ×12
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Reddish Brown Part 3040b Element 4211199 ×6
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Reddish Brown Part 3747b Element 4508616 or 4217916 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Reddish Brown Part 3660 Element 4211221 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×9
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×1

Technic Bricks 90 pieces

  • Technic Brick 1 x 12 [11 Pin Holes] Light Bluish Gray Part 3895 Element 4211860 ×1
  • Technic Brick 1 x 16 [15 Pin Holes] Light Bluish Gray Part 3703 Element 4211443 ×6
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×44
  • Technic Brick 1 x 8 [7 Pin Holes] Light Bluish Gray Part 3702 Element 4211442 ×36
  • Technic Brick 6 x 8 with 4 x 6 Opening Light Bluish Gray Part 32532 Element 6421513 or 4211848 ×3

Technic Pins 61 pieces

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×3
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×24
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×23
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×8
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×3

Technic Gears 48 pieces

  • Technic Gear Rack 1 x 4 Black Part 3743 Element 6457282 or 4205760 ×22
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Dark Bluish Gray Part 3648b Element 6133119 or 4514558 ×3
  • Technic Gear 8 Tooth [Reinforced] Dark Bluish Gray Part 10928 Element 6631413 or 6012451 ×9
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×6
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Tan Part 18575 Element 6346517 or 6084724 ×8

Plates Special 38 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×5
  • Plate Special 3 x 4 with 1 x 4 Center Studs [Plain] Light Bluish Gray Part 88646 Element 6122124 or 6079461 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×2
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Red Part 99206 Element 6061711 ×15
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) White Part 3794b ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×6

Bricks Curved 24 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Red Part 6091 Element 6184782 or 609121 ×12
  • Brick Arch 1 x 3 x 2 Tan Part 88292 Element 4579306 ×12

Technic Beams 17 pieces

  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×3
  • Technic Beam 1 x 7 Thick Dark Bluish Gray Part 32524 Element 4495931 or 4210752 ×6
  • Technic Beam 1 x 13 Thick Light Bluish Gray Part 41239 Element 4522934 or 4156299 ×8

Technic Axles 9 pieces

  • Technic Axle 8 with Stop Dark Bluish Gray Part 55013 Element 4499858 ×3
  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×6

Technic Bushes 9 pieces

  • Technic Bush Red Part 3713 Element 6271820 or 4227155 ×6
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 ×3

Bricks Special 7 pieces

  • Brick Special 1 x 2 with Pin Light Bluish Gray Part 2458 Element 4211364 ×6
  • Brick Special 1 x 2 with 2 Studs on 1 Side White Part 11211 Element 6550150 or 6058177 ×1

Technic Connectors 6 pieces

  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×3
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×3

Bricks Round and Cones 5 pieces

  • Brick Round 2 x 2 Dome Top, Hollow Stud Red Part 30367c Element 4216657 ×4
  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×1

Bricks Wedged 4 pieces

  • Brick Wedged, Angled 3 x 2 Left Light Bluish Gray Part 6565 Element 6449622 or 4527767 ×2
  • Brick Wedged, Angled 3 x 2 Right Light Bluish Gray Part 6564 Element 4526932 or 4211559 ×2

Panels 3 pieces

  • Panel 1 x 6 x 5 Light Bluish Gray Part 59349 Element 4527174 ×3

Minifig Accessories 2 pieces

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 White Part 64644 Element 6615569 or 6070327 ×2

Minifig Upper Body 2 pieces

  • Arm Mechanical Straight (Droid) [2 Clips at 90°] White Part 59230 Element 6056353 or 4505109 ×2

Plates Round Curved and Dishes 2 pieces

  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 ×2

Stickers 1 piece

  • Sticker Sheet for Set 2000451-1 [No Color/Any Color] Part 33330 Element 6186560 ×1

Minifigures 1 figure

  • White Torso, Blue Legs, Black Hair Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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