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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.

Stygimoloch Breakout

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75927 Stygimoloch Breakout

214 pieces in 84 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 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.

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Piece checklist

Plates 45 pieces

  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 1 spare in the box ×7
  • Plate 1 x 10 Dark Blue Part 4477 Element 6200663 ×2
  • Plate 1 x 2 Dark Blue Part 3023 Element 6554191 or 4528981 ×2
  • Plate 1 x 3 Dark Blue Part 3623 Element 6554187 or 4177735 ×9
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 ×4
  • Plate 2 x 8 Dark Blue Part 3034 Element 6027627 or 4530027 ×1
  • Plate 1 x 12 Dark Bluish Gray Part 60479 Element 6133611 or 4666604 ×1
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 ×2
  • Plate 2 x 10 Dark Bluish Gray Part 3832 Element 4210678 ×2
  • Plate 2 x 12 Dark Bluish Gray Part 2445 Element 4211067 ×1
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×1
  • Plate 2 x 12 Light Bluish Gray Part 2445 Element 4211360 ×1
  • Plate 1 x 2 Trans-Yellow Part 3023 Element 6514002 or 6240211 ×8
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×1
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×1
  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×1
  • Plate 4 x 8 White Part 3035 Element 6609533 or 303501 ×1

Bricks 30 pieces

  • Brick 1 x 1 x 5 with Solid Stud Dark Bluish Gray Part 2453b Element 4210690 ×2
  • Brick 1 x 2 x 2 with Inside Stud Holder Dark Bluish Gray Part 3245c Element 4210978 ×6
  • Brick 1 x 2 x 5 with Hollow Studs Dark Bluish Gray Part 2454b Element 4211075 ×4
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×8
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×2
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×2
  • Brick 1 x 8 Light Bluish Gray Part 3008 Element 4211392 ×1
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×1
  • Brick 2 x 2 Corner Light Bluish Gray Part 2357 Element 4211349 ×1
  • Brick 1 x 2 x 5 with Hollow Studs White Part 2454b Element 6619280 or 245401 ×3

Bars, Ladders and Fences 22 pieces

  • Antenna 8H Whip Black Part 2569 Element 6265148 or 6164379 ×1
  • Bar 1 x 8 x 2 Black Part 2486 Element 6226740 or 6119243 ×5
  • Bar 3L Black Part 87994 Element 6185316 or 6093525 1 spare in the box ×4
  • Bar 7 x 3 with Double Clips (Ladder) [Straight Clips] Black Part 6020 Element 602026 ×1
  • Bar Holder with Hole and Bar Handle Black Part 23443 Element 6321194 or 6143318 ×8
  • Bar 1 x 4 x 2 with Studs Light Bluish Gray Part 4083 Element 6528577 or 6133587 ×1
  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Red Part 58176 Element 6507867 or 6171762 1 spare in the box ×2

Plates Special 19 pieces

  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×5
  • Plate Special 1 x 2 with Clip Horizontal on Side Black Part 11476 Element 6313116 or 6132731 ×2
  • Bracket 1 x 2 - 2 x 2 Light Bluish Gray Part 44728 Element 6117967 or 6009014 ×4
  • Plate Special 2 x 4 with Pins Light Bluish Gray Part 30157 Element 4211572 ×1
  • Plate Special 2 x 8 with Door Rail Light Bluish Gray Part 30586 Element 4222019 ×2
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes White Part 92593 Element 4597131 ×4
  • Plate Special 4 x 6, Studs on 3 Edges White Part 6180 Element 6619292 or 4163986 ×1

Bricks Special 17 pieces

  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Black Part 60475b Element 6336977 or 4533771 ×1
  • Brick Special 1 x 2 with Grille Black Part 2877 Element 287726 ×2
  • Brick Special 1 x 2 with Vertical Clip [Open O Clip] Light Bluish Gray Part 30237b Element 6320297 or 4641682 ×12
  • Brick Special 1 x 2 with Vertical Closed Handle on Edge Light Bluish Gray Part 34816 Element 6198932 ×2

Tiles 16 pieces

  • Tile 1 x 4 with Groove Dark Blue Part 2431 Element 6103985 or 4568393 ×6
  • Tile 1 x 2 with Computer Keyboard Standard Print Dark Bluish Gray Part 3069bpr0030 Element 4493478 or 4244759 ×1
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×4
  • Tile 1 x 8 with Groove Dark Bluish Gray Part 4162 Element 5210651 or 4211008 ×3
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×1
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×1

Bricks Curved 13 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Bluish Gray Part 11477 Element 6029948 ×4
  • Brick Curved 2 x 2 x 2/3 Light Bluish Gray Part 15068 Element 6102357 ×9

Animal / Creature Body Parts 10 pieces

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Dark Tan Part 53451 Element 6270111 or 6022717 1 spare in the box ×4
  • Animal Body Part, Dinosaur, Arm / Leg, Left, Small Medium Nougat Part 36690 Element 6224841 ×1
  • Animal Body Part, Dinosaur, Arm / Leg, Right, Small Medium Nougat Part 36688 Element 6224842 ×1
  • Animal Body Part, Dinosaur, Stygimoloch Body with Dark Orange and Reddish Brown Markings Print Medium Nougat Part 98165pr0010 Element 6225300 ×1
  • Animal Body Part, Dinosaur, Stygimoloch Head with Dark Orange and Reddish Brown Pattern Print Medium Nougat Part 38434pr0001 Element 6224838 ×1
  • Animal Body Part, Dinosaur, Stygimoloch Leg, Left with Pin, Tan Claws and Dark Orange Spots Print Medium Nougat Part 20449pr0001 Element 6224982 ×1
  • Animal Body Part, Dinosaur, Stygimoloch Leg, Right, with Pin, Tan Claws and Dark Orange Spots Print Medium Nougat Part 20450pr0001 Element 6224996 ×1

Bricks Sloped 10 pieces

  • Brick Sloped 75° 2 x 2 x 3 [Solid Studs] Dark Bluish Gray Part 98560 Element 6000853 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×2

Minifig Accessories 6 pieces

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Black Part 64644 Element 4538456 ×2
  • Equipment Medical Syringe Lime Part 87989 Element 6086765 or 4654583 1 spare in the box ×1
  • Food Egg with 1.5mm Hole [Plain] White Part 24946 Element 6550158 or 6143595 ×2
  • Equipment Cup / Mug [Plain] Yellow Part 3899 Element 389924 ×1

Tiles Special 5 pieces

  • Tile Special 1 x 2 with Handle Dark Bluish Gray Part 2432 Element 4211039 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 ×2
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×1

Panels 4 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Clear Part 87552 Element 6514185 or 6253231 ×2
  • Panel 1 x 6 x 5 Trans-Light Blue Part 59349 Element 6514107 or 6245257 ×2

Plates Wedged 4 pieces

  • Wedge Plate 3 x 3 Cut Corner Dark Blue Part 2450 Element 6554202 or 6110050 ×2
  • Wedge Plate 3 x 3 Cut Corner White Part 2450 Element 6601842 or 4280148 ×2

Flags, Banners and Signs 3 pieces

  • Road Sign Clip-on 2 x 2 Square [Thick Open O Clip] Dark Bluish Gray Part 15210 Element 6315300 or 6063616 ×1
  • Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] Light Bluish Gray Part 11055 Element 6011817 or 4271362 ×2

Bricks Wedged 2 pieces

  • Brick Wedged 3 x 3 Facet Light Bluish Gray Part 2462 Element 4211718 ×2

Supports, Girders and Cranes 2 pieces

  • Support 1 x 6 x 5 Girder Rectangular Dark Bluish Gray Part 64448 Element 4542618 ×2

Technic Connectors 2 pieces

  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Black Part 32530 Element 4144024 ×2

Minifig Shields, Weapons, & Tools 1 piece

  • Weapon Gun Automatic Pistol with Top Clip Dark Bluish Gray Part 15445 Element 6191976 or 6055607 ×1

Plates Round Curved and Dishes 1 piece

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Tan Part 4032a Element 4140562 or 403205 ×1

Stickers 1 piece

  • Sticker Sheet for Set 75927-1 [No Color/Any Color] Part 38537 Element 6225680 ×1

Technic Pins 1 piece

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1

Minifigures 2 figures

  • Guard in Dark Bluish Gray Beanie Hat Minifigure, checked as a whole figure ×1
  • Dr. Henry Wu, Suspicious 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.

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