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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.

OCEAN ODYSSEY Challenge Kit

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9762 OCEAN ODYSSEY Challenge Kit

1,471 pieces in 194 part and color combinations.

LEGO counts 1,470 pieces. This inventory comes from a separate parts catalog and lists 1,471; 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.

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

Black 508 pieces

  • Axle Hose, Soft 11L Black Part 32199 Element 4234438 or 4121646 ×4
  • Brick 2 x 3 Black Part 3002 Element 300226 ×6
  • Chain 17L [21 Links] Black Part 30104 Element 4516718 or 4106729 ×4
  • Hose Rigid 3mm D. 10L / 8.0cm Black Part 75c10 Element 4505034 or 4116941 ×2
  • Hose, Ribbed 7mm D. 9L / 7.2cm Black Part 78c09 Element 6443871 or 6420612 ×4
  • Plate 2 x 10 Black Part 3832 Element 383226 ×4
  • Plate 2 x 12 Black Part 2445 Element 244526 ×6
  • Plate 2 x 3 Black Part 3021 Element 302126 ×3
  • Plate 2 x 6 Black Part 3795 Element 379526 ×6
  • Plate 2 x 8 Black Part 3034 Element 303426 Also in Dark Bluish Gray ×1
  • Propeller 3 Blade 3 Diameter with Axle Cross Black Part 6041 Element 604126 ×1
  • Technic Axle 10 Black Part 3737 Element 373726 ×12
  • Technic Axle 4 Black Part 3705 Element 370526 ×18
  • Technic Axle 8 Black Part 3707 Element 370726 ×8
  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×13
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×4
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×26
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×24
  • Technic Axle and Pin Connector Angled #3 - 157.5° Black Part 32016 Element 6261386 or 4107082 ×1
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×6
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×4
  • Technic Axle and Pin Connector Perpendicular Double Split Black Part 41678 Element 4162857 ×2
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×7
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×5
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×20
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×2
  • Technic Beam 1 x 6 Thin Black Part 32063 Element 6163980 or 4114634 ×4
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black Part 6629 Element 6279881 or 4119800 ×1
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×1
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 ×21
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×5
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×90
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×181
  • Technic Wedge Belt Wheel Tire Black Part 2815 Element 6028041 or 281526 ×4
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Wedge Plate 6 x 12 Left Black Part 30355 Element 4143180 ×1
  • Wedge Plate 6 x 12 Right Black Part 30356 Element 6394881 or 4143181 ×1
  • Wedge Plate 8 x 3, 22° Left Black Part 50305 Element 4251394 ×1
  • Wedge Plate 8 x 3, 22° Right Black Part 50304 Element 4251393 ×1

Red 354 pieces

  • Brick 1 x 10 Red Part 6111 Element 611121 ×40
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×2
  • Brick 1 x 3 Red Part 3622 Element 362221 ×6
  • Brick 1 x 4 Red Part 3010 Element 301021 ×16
  • Brick 1 x 6 Red Part 3009 Element 300921 ×8
  • Brick 1 x 8 Red Part 3008 Element 300821 ×9
  • Brick 2 x 10 Red Part 3006 Element 4617857 or 300621 ×2
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×2
  • Brick 2 x 6 Red Part 2456 Element 4181138 or 245621 ×2
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×6
  • Brick Curved 2 x 4 x 2 Double [Plain] Red Part 4744 Element 474421 ×3
  • Brick Special 2 x 2 with Pin and Axle Hole Red Part 6232 Element 6347696 or 623221 ×11
  • Brick Wedged, Angled 3 x 2 Left Red Part 6565 Element 6256588 or 4527765 ×6
  • Brick Wedged, Angled 3 x 2 Right Red Part 6564 Element 6256585 or 4526929 ×6
  • Flag 2 x 2 Square [Thin Clips] Red Part 2335 Element 4523404 or 4162384 ×6
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Red Part 73983 Element 6102786 or 74230 ×4
  • Plate 1 x 1 Red Part 3024 Element 302421 ×8
  • Plate 1 x 2 Red Part 3023 Element 302321 ×7
  • Plate 1 x 4 Red Part 3710 Element 371021 ×11
  • Plate 1 x 6 Red Part 3666 Element 366621 ×2
  • Plate 2 x 10 Red Part 3832 Element 383221 ×1
  • Plate 2 x 12 Red Part 2445 Element 4255035 or 4161545 ×12
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×10
  • Plate 2 x 3 Red Part 3021 Element 302121 ×6
  • Plate 2 x 4 Red Part 3020 Element 302021 ×5
  • Plate 2 x 6 Red Part 3795 Element 379521 ×3
  • Plate 2 x 8 Red Part 3034 Element 303421 ×5
  • Plate 4 x 6 Red Part 3032 Element 303221 ×1
  • Plate 6 x 8 Red Part 3036 Element 303671 or 303621 ×10
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×63
  • Technic Beam 1 x 2 Thick Red Part 43857 Element 4185664 ×4
  • Technic Beam 1 x 3 Thick Red Part 32523 Element 4153718 ×16
  • Technic Beam 1 x 9 Thick Red Part 40490 Element 4645733 or 4192225 ×8
  • Technic Beam Triangle Thin [Type I] Red Part 2905 Element 4142540 or 290521 ×4
  • Technic Brick 1 x 10 [9 Pin Holes] Red Part 2730 Element 273021 ×5
  • Technic Brick 1 x 12 [11 Pin Holes] Red Part 3895 Element 389521 ×22
  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×1
  • Technic Brick 1 x 6 [5 Pin Holes] Red Part 3894 Element 389421 ×9
  • Technic Brick 1 x 8 [7 Pin Holes] Red Part 3702 Element 370221 ×2
  • Wedge Plate 3 x 2 Left Red Part 43723 Element 4372321 or 4180533 ×5
  • Wedge Plate 3 x 2 Right Red Part 43722 Element 4372221 or 4180504 ×5

Light Bluish Gray 177 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Light Bluish Gray Part 2436 Element 4282740 or 4211358 ×4
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×1
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×3
  • Brick Sloped 18° 4 x 2 Light Bluish Gray Part 30363 Element 4509915 or 4211618 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×3
  • Brick Sloped 45° 2 x 2 Light Bluish Gray Part 3039 Element 4211410 ×1
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Light Bluish Gray Part 3747b Element 4211570 ×2
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×2
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×1
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×2
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×2
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×2
  • Plate Special 2 x 2 with 2 Pin Holes Light Bluish Gray Part 2817 Element 4211376 ×4
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×13
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×4
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×12
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Bluish Gray Part 6538b Element 4211543 ×6
  • Technic Axle and Pin Connector Angled #5 - 112.5° Light Bluish Gray Part 32015 Element 6271347 or 4211551 ×2
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×4
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Light Bluish Gray Part 42003 Element 6273724 or 4211779 ×1
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×36
  • Technic Beam 1 x 9 Thick Light Bluish Gray Part 40490 Element 6102449 or 4211866 ×4
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Bluish Gray Part 32054 Element 4211865 ×4
  • Technic Pin Long without Friction Ridges - Single Slot Light Bluish Gray Part 32556a Element 4211709 ×41
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 ×12
  • Technic Wedge Belt Wheel [aka Pulley] Light Bluish Gray Part 4185 Element 6321743 or 4494222 ×4
  • Wedge Plate 3 x 3 Cut Corner Light Bluish Gray Part 2450 Element 4211361 ×2

Yellow 169 pieces

  • Bracket 1 x 2 - 2 x 2 Yellow Part 44728 Element 6117938 or 4615642 ×1
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×3
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×3
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×3
  • Brick Curved 6 x 1 Yellow Part 42022 Element 4160392 ×2
  • Brick Special 1 x 2 with Pin Yellow Part 2458 Element 245824 ×1
  • Dish 2 x 2 Inverted [Radar] Yellow Part 4740 Element 4169960 or 4107622 ×2
  • Flag 2 x 2 Square [Thin Clips] Yellow Part 2335 Element 4523409 or 233574 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×1
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×3
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×3
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] Yellow Part 6538b Element 4140507 ×8
  • Technic Axle Connector with Axle Hole Yellow Part 32039 Element 4107800 or 3203924 ×8
  • Technic Axle and Pin Connector Angled #1 Yellow Part 32013 Element 6329889 or 4107066 ×28
  • Technic Axle and Pin Connector Angled #6 - 90° Yellow Part 32014 Element 6268925 or 6072968 ×2
  • Technic Beam 1 x 3 Thick Yellow Part 32523 Element 4153707 ×21
  • Technic Beam 1 x 4 Thin Yellow Part 32449 Element 6327559 or 4199345 ×2
  • Technic Beam 1 x 5 Thick Yellow Part 32316 Element 4142133 or 4128590 ×32
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Yellow Part 32271 Element 6276838 or 4544005 ×8
  • Technic Beam 1 x 9 Thick Yellow Part 40490 Element 6115616 or 4187136 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×3
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Yellow Part 32064b ×2
  • Technic Brick 6 x 8 with 4 x 6 Opening Yellow Part 32532 Element 4162899 or 3253224 ×6
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×8
  • Technic Pin Connector Round [No Slot] Yellow Part 75535 Element 75644 ×2
  • Wedge Plate 4 x 4 with 2 x 2 Cutout Yellow Part 43719 Element 6609418 or 6275404 ×2
  • Wheel with Split Axle hole Yellow Part 3482 Element 348224 ×5

White 84 pieces

  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick Curved Inverted 6 x 1 White Part 42023 Element 4160403 ×2
  • Brick Special 1 x 4 with 4 Studs on One Side White Part 30414 Element 6550167 or 4143254 ×12
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×4
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×4
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×2
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×9
  • Plate 4 x 12 White Part 3029 Element 4168072 or 302901 ×8
  • Plate 6 x 12 White Part 3028 Element 4120020 or 302801 ×17
  • Technic Plate 2 x 4 [3 Holes] White Part 3709 Element 370901 ×11
  • Wedge Plate 3 x 4 without Stud Notches White Part 4859 Element 4215973 or 4199395 ×4
  • Wedge Plate 6 x 12 Left White Part 30355 Element 6535488 or 4141475 ×1
  • Wedge Plate 6 x 12 Right White Part 30356 Element 4141476 ×1
  • Wedge Plate 8 x 3, 22° Left White Part 50305 Element 4256097 ×1
  • Wedge Plate 8 x 3, 22° Right White Part 50304 Element 4256095 ×1

Dark Bluish Gray 60 pieces

  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×1
  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 ×1
  • Brick 2 x 6 Dark Bluish Gray Part 2456 Element 4282819 or 4210875 ×3
  • Brick Round 2 x 2 with Axle Hole Dark Bluish Gray Part 3941 Element 4249139 ×4
  • Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole Dark Bluish Gray Part 6222 Element 4211097 ×4
  • Brick Sloped 33° 3 x 1 Dark Bluish Gray Part 4286 Element 4211045 ×2
  • Brick Sloped 33° 3 x 2 Dark Bluish Gray Part 3298 Element 4211106 ×2
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Dark Bluish Gray Part 3684 Element 4286876 or 4210696 ×1
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Dark Bluish Gray Part 3747b Element 4211064 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×1
  • Brick Special 1 x 1 with Headlight Dark Bluish Gray Part 4070 Element 4211044 ×2
  • Cone 4 x 4 x 2 Hollow No Studs Dark Bluish Gray Part 4742 Element 4222113 ×2
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Dark Bluish Gray Part 4349 Element 4210698 ×2
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 Also in Black ×2
  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 1 spare in the box ×4
  • Technic Axle and Pin Connector Angled #6 - 90° Dark Bluish Gray Part 32014 Element 6268923 or 4210671 ×12
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×2
  • Weapon Lance Dark Bluish Gray Part 3849 Element 4219902 ×14

Green 48 pieces

  • Brick 2 x 2 Green Part 3003 Element 300328 ×6
  • Brick 2 x 3 Green Part 3002 Element 4109674 or 300228 ×3
  • Brick Sloped 33° 3 x 2 Green Part 3298 Element 6226928 or 4497188 ×9
  • Brick Sloped 45° 2 x 2 Green Part 3039 Element 303928 ×9
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Green Part 3747b Element 4519945 ×6
  • Plate 1 x 2 Green Part 3023 Element 302328 ×6
  • Plate 2 x 6 Green Part 3795 Element 379528 ×3
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Green Part 32064b ×6

Blue 37 pieces

  • Flag 2 x 2 Square [Thin Clips] Blue Part 2335 Element 4523407 or 4160793 ×6
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×2
  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 1 spare in the box ×4
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×21
  • Technic Axle and Pin Connector Angled #1 Blue Part 32013 Element 6332570 or 4107797 ×4

Reddish Brown 24 pieces

  • Brick 2 x 4 Reddish Brown Part 3001 Element 4211201 ×8
  • Tile 1 x 4 with Groove Reddish Brown Part 2431 Element 4211194 ×16

Pearl Light Gray 8 pieces

  • Hose, Ribbed 7mm D. 11L / 8.8cm Pearl Light Gray Part 78c11 Element 4495208 or 4141672 ×7
  • Hose, Ribbed 7mm D. 15L / 12.0cm Pearl Light Gray Part 78c15 Element 4501125 ×1

Trans-Brown 1 piece

  • Brick Curved 2 x 2 with Lip, No Studs Trans-Brown Part 30602 Element 6507872 or 6171717 ×1

[No Color/Any Color] 1 piece

  • CD-Rom, for 9762 (FLL 2005 - Ocean Odyssey) [No Color/Any Color] Part 4283798 ×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.