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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.

Deep Sea Predators

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4506 Deep Sea Predators

354 pieces in 143 part and color combinations.

LEGO counts 352 pieces. This inventory comes from a separate parts catalog and lists 354; 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

Plates 60 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 ×2
  • Plate 1 x 8 Dark Blue Part 3460 Element 6250216 or 4186628 ×6
  • Plate 2 x 2 Dark Blue Part 3022 Element 6037890 or 4528982 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×3
  • Plate 2 x 2 Dark Red Part 3022 Element 4585479 or 4163160 ×1
  • Plate 2 x 3 Dark Red Part 3021 Element 6264030 or 4541510 ×2
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×2
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×2
  • 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 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 2 x 3 Red Part 3021 Element 302121 ×3
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×4
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×4
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×4
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×3
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×2
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×1

Bricks Sloped 46 pieces

  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Black Part 3747b Element 4500458 or 374726 ×1
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×4
  • Brick Sloped 45° 2 x 2 Double Convex Dark Blue Part 3045 Element 4196736 ×2
  • Brick Sloped Inverted 45° 2 x 2 Double Convex Dark Blue Part 3676 Element 6226365 or 4225576 ×2
  • Brick Sloped 18° 4 x 2 Dark Bluish Gray Part 30363 Element 4210637 ×1
  • Brick Sloped 33° 3 x 1 Light Bluish Gray Part 4286 Element 4211488 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×1
  • Brick Sloped Inverted 45° 2 x 1 Light Bluish Gray Part 3665 Element 4211437 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×1
  • Brick Sloped 18° 4 x 2 Red Part 30363 Element 4129539 ×1
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×1
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×1
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Red Part 3747b Element 4500462 ×2
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×2
  • Brick Sloped 45° 2 x 2 Sand Blue Part 3039 Element 4215337 ×2
  • Brick Sloped 45° 2 x 4 Sand Blue Part 3037 Element 4225933 ×6
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin White Part 3747b Element 4500469 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×10

Hinges, Arms and Turntables 40 pieces

  • Hinge Brick 2 x 2 Top Plate Thin Black Part 6134 Element 4124096 or 613426 ×1
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Black Part 44301a Element 4183043 ×6
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Black Part 44567a Element 4185620 ×4
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Black Part 44302a Element 4183060 ×10
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Light Bluish Gray Part 44301a Element 4211803 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Light Bluish Gray Part 44302a Element 4211804 ×3
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Light Bluish Gray Part 73983 Element 6102769 or 4219256 ×2
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×1
  • Hinge Brick 1 x 2 Base Red Part 3937 Element 393721 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Red Part 44301a Element 4183039 ×4
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Red Part 44302a Element 6249371 or 6074865 ×4

Plates Special 36 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Blue Part 3794a ×2
  • Plate Special 1 x 1 with Tooth Glow In Dark Opaque Part 49668 Element 4225925 ×20
  • Bracket 1 x 2 - 2 x 2 Red Part 44728 Element 6117974 or 6048856 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Sand Blue Part 3794a Element 4165658 ×2
  • Plate Special 1 x 1 with Tooth White Part 49668 Element 6601935 or 4224792 ×6

Bricks 30 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 Also in Dark Bluish Gray ×3
  • Brick 2 x 4 Black Part 3001 Element 300126 ×2
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 Also in Black ×2
  • Brick 2 x 6 Dark Bluish Gray Part 2456 Element 4282819 or 4210875 ×1
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×1
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×1
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×2
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×4
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×1
  • Brick 1 x 1 Red Part 3005 Element 300521 ×4
  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×6

Bricks Wedged 26 pieces

  • Brick Wedged, Angled 4 x 2 Left Black Part 41768 Element 6078889 or 4644755 Also in Dark Blue ×1
  • Brick Wedged, Angled 4 x 2 Right Black Part 41767 Element 6078886 or 4644754 Also in Dark Blue ×1
  • Brick Wedged, Sloped 18° 4 x 4 Corner Black Part 43708 Element 6172509 or 6004449 ×4
  • Brick Wedged, Sloped 45° 4 x 2 Left Black Part 43721 Element 6277462 or 4570401 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Right Black Part 43720 Element 6279754 or 4570397 ×1
  • Brick Wedged, Angled 4 x 2 Left Dark Blue Part 41768 Element 4225578 Also in Black ×1
  • Brick Wedged, Angled 4 x 2 Right Dark Blue Part 41767 Element 4225577 Also in Black ×1
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Dark Blue Part 41748 Element 6106167 or 4162717 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Dark Blue Part 41747 Element 6106176 or 4162716 ×1
  • Brick Wedged, Curved Inverted 6 x 2 Left Dark Blue Part 41765 Element 6097490 or 4225579 ×1
  • Brick Wedged, Curved Inverted 6 x 2 Right Dark Blue Part 41764 Element 6097487 or 4225582 ×1
  • 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
  • Brick Wedged, Sloped 4 x 4 Triple, Stud Notches Red Part 48933 Element 6331852 or 6146904 ×1
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges Sand Blue Part 41748 Element 4165655 ×2
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges Sand Blue Part 41747 Element 4165654 ×2
  • Brick Wedged, Curved Inverted 6 x 2 Left White Part 41765 Element 6375978 or 6268056 ×1
  • Brick Wedged, Curved Inverted 6 x 2 Right White Part 41764 Element 6375977 or 6268055 ×1
  • Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] White Part 4855 Element 485501 ×1

Plates Round Curved and Dishes 25 pieces

  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×2
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×11
  • Dish 2 x 2 Inverted [Radar] Dark Red Part 4740 Element 4514787 or 4186361 ×4
  • Dish 2 x 2 Inverted [Radar] Trans-Clear Part 4740 Element 6514246 or 6245306 Also in White ×2
  • Dish 3 x 3 Inverted [Radar] Trans-Clear Part 43898 Element 6507917 or 6244730 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 ×2
  • Dish 2 x 2 Inverted [Radar] White Part 4740 Element 6601845 or 474001 Also in Trans-Clear ×2

Tiles 23 pieces

  • Tile 1 x 4 with Groove Dark Blue Part 2431 Element 6103985 or 4568393 ×4
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×2
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 ×4
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×5
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×3
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×2

Bricks Special 19 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×2
  • Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×2
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×8
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×4

Plates Wedged 11 pieces

  • Wedge Plate 3 x 6 Cut Corners Black Part 2419 Element 241926 ×2
  • Wedge Plate 4 x 6 Dark Blue Part 47407 Element 6469941 or 6337751 ×1
  • Wedge Plate 4 x 2 Left Sand Blue Part 41770 Element 6207945 or 4182468 ×1
  • Wedge Plate 4 x 2 Right Sand Blue Part 41769 Element 6207944 or 4182467 ×1
  • Wedge Plate 8 x 4 Wing Left Sand Blue Part 3933 Element 4234003 or 4143270 ×2
  • Wedge Plate 8 x 4 Wing Right with Stud Notch Sand Blue Part 3934 Element 4234005 or 4143271 ×2
  • Wedge Plate 3 x 4 without Stud Notches White Part 4859 Element 4215973 or 4199395 ×2

Technic Special 10 pieces

  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top] Dark Bluish Gray Part 48170 Element 6279898 or 4227395 ×3
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket Dark Bluish Gray Part 48169 Element 6278974 or 4225973 ×3
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side] Light Bluish Gray Part 48171 Element 4227525 ×2
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side] Red Part 48171 Element 4225921 ×2

Technic Pins 9 pieces

  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 ×2
  • Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Sand Blue Part 47455 Element 6559777 or 4272422 ×7

Technic Bricks 7 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×2
  • Technic Brick 1 x 1 with Pin Hole White Part 6541 Element 6609542 or 654101 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] White Part 3700 Element 6619284 or 370001 ×3

Bricks Round and Cones 4 pieces

  • Cone 1 x 1 [No Top Groove] Glow In Dark Opaque Part 4589 Element 4226962 ×1
  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×3

Tiles Special 4 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Dark Blue Part 2412b Element 6022579 or 4507076 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Glow In Dark Opaque Part 2412b Element 4225926 ×2

Bricks Curved 2 pieces

  • Brick Curved 6 x 1 Dark Bluish Gray Part 42022 Element 6058858 or 4210778 ×2

Bars, Ladders and Fences 1 piece

  • Bar 4L (Lightsaber Blade / Wand) Trans-Light Blue Part 30374 Element 6507882 or 6170187 ×1

Transportation - Sea and Air 1 piece

  • Tail Shuttle - Small Black Part 44661 Element 4529173 or 4184300 ×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.

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