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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.

Emmet's Triple-Decker Couch Mech

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70842 Emmet's Triple-Decker Couch Mech

275 pieces in 72 part and color combinations, plus 3 minifigures.

The official piece count includes the 37 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 Special 88 pieces

  • Plate Special 1 x 2 with Angled Handles on Side Black Part 92692 Element 4604304 ×1
  • Bracket 1 x 2 - 1 x 2 Inverted Dark Bluish Gray Part 99780 Element 6000606 ×8
  • Plate Special 1 x 2 [Side Handle Closed Ends] Dark Bluish Gray Part 48336 Element 6146321 ×4
  • Plate Special 1 x 2 with 5.9mm Centre Side Towball Dark Bluish Gray Part 14417 Element 6414560 or 6338160 ×4
  • Plate Special 1 x 2 with Clip Horizontal on End Dark Bluish Gray Part 63868 Element 6336990 or 4581225 ×14
  • Plate Special 1 x 4 Offset with Bar Holes Dark Bluish Gray Part 4590 Element 6302647 or 6086709 ×5
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 ×2
  • Bracket 1 x 2 - 1 x 2 Light Bluish Gray Part 99781 Element 4654582 ×2
  • Bracket 1 x 2 - 2 x 4 Light Bluish Gray Part 93274 Element 6118827 or 4613165 ×4
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Light Bluish Gray Part 61252 Element 6335378 or 4541978 ×6
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×4
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Light Bluish Gray Part 10247 Element 6045988 ×8
  • Bracket 2 x 2 with 1 x 2 Vertical Studs Medium Blue Part 41682 Element 6271130 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Medium Blue Part 15573 Element 6092601 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Medium Blue Part 87580 Element 6126060 or 4581079 ×6
  • Plate Special 1 x 1 Rounded with Handle Reddish Brown Part 26047 Element 6153863 ×4
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Reddish Brown Part 60478 Element 6102975 ×2
  • Plate Special 1 x 2 with Pin Hole Underneath Reddish Brown Part 18677 Element 6192310 or 6178035 ×2

Plates 59 pieces

  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 ×6
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×8
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×3
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×7
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×6
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×3
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×10
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×2
  • Plate 1 x 8 Reddish Brown Part 3460 Element 4216945 ×2
  • Plate 2 x 10 Reddish Brown Part 3832 Element 4211214 ×2
  • Plate 2 x 2 Reddish Brown Part 3022 Element 4613975 or 4216695 ×3
  • Plate 2 x 3 Reddish Brown Part 3021 Element 4211189 ×2
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×4
  • Plate 2 x 6 Reddish Brown Part 3795 Element 4211247 ×1

Tiles 29 pieces

  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×2
  • Tile 1 x 2 with Groove Medium Blue Part 3069b Element 4168345 ×9
  • Tile 2 x 2 with Groove Medium Blue Part 3068b Element 4528357 or 4188291 ×18

Plates Round Curved and Dishes 17 pieces

  • Dish 2 x 2 Inverted [Radar] Light Bluish Gray Part 4740 Element 4211512 ×2
  • Plate Round 1 x 1 with Open Stud Reddish Brown Part 85861 Element 6215659 ×12
  • Plate Round 1 x 1 with Solid Stud Trans-Dark Pink Part 6141 Element 6514060 or 6240230 ×1
  • Plate Round 1 x 1 with Open Stud Trans-Light Blue Part 85861 Element 6510163 or 6283590 ×2

Bricks Curved 13 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Bluish Gray Part 6091 Element 6411327 or 4210797 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Brown Part 11477 Element 6046943 ×4
  • Brick Curved Inverted 2 x 2 x 2/3 Light Bluish Gray Part 32803 Element 6185676 ×3
  • Brick Curved 2 x 2 x 2/3 Reddish Brown Part 15068 Element 6146858 ×2
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Reddish Brown Part 11153 Element 6580400 or 6045941 ×2

Hinges, Arms and Turntables 10 pieces

  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Black Part 44302a Element 4183060 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers on Side, 9 Teeth Black Part 60471 Element 4515340 ×2
  • Hinge Brick 1 x 2 Locking with 1 Finger Vertical End and 2 Fingers Vertical End, 9 Teeth Light Bluish Gray Part 30386 Element 4211667 ×2
  • Hinge Plate 2 x 2 Locking with 1 Finger on Top Light Bluish Gray Part 92582 Element 6265742 or 4666449 ×2

Technic Pins 10 pieces

  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×2
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×6
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Tiles Special 10 pieces

  • Tile Special 1 x 2 with Handle Dark Bluish Gray Part 2432 Element 4211039 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 ×5
  • Tile Special 2 x 2 Inverted Tan Part 11203 Element 6013081 ×2
  • Tile Special Round 1 x 1 with Hollow Bar White Part 20482 Element 6186681 or 6178492 ×1

Bars, Ladders and Fences 8 pieces

  • Bar 4L (Lightsaber Blade / Wand) Light Bluish Gray Part 30374 Element 6116608 or 4211628 ×2
  • Bar 1 x 4 x 3 [End Tabs] Reddish Brown Part 62113 Element 6271128 ×4
  • Bar 7 x 3 [4 Clips] Reddish Brown Part 30095 Element 6271129 ×2

Minifig Accessories 6 pieces

  • Equipment Cup / Mug [Plain] White Part 3899 Element 4659665 or 4548546 ×6

Minifig Upper Body 6 pieces

  • Arm Skeleton [Bent / 2 Clips] Dark Bluish Gray Part 93609 Element 6318697 or 6167900 ×6

Technic Connectors 4 pieces

  • Technic Axle Connector Smooth [with x Hole + Orientation] Light Bluish Gray Part 59443 Element 4512360 ×4

Animal / Creature Body Parts 3 pieces

  • Creature Body Part, Barb Large (Claw, Talon) with Clip Light Bluish Gray Part 16770 Element 6359723 or 6271212 ×3

Pneumatics 3 pieces

  • Pneumatic T-Piece (T Bar) [New Style] Light Bluish Gray Part 4697b Element 4211508 ×3

Energy Effects 2 pieces

  • Wave / Flame Rounded with Base Rim Glitter Trans-Light Blue Part 6126b Element 6167742 or 6093745 ×2

Technic Bushes 2 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 ×2

Technic Gears 2 pieces

  • Technic Gear 20 Tooth Bevel Light Bluish Gray Part 32198 Element 6359714 or 6031956 ×2

Bricks Round and Cones 1 piece

  • Brick Round 1 x 1 Open Stud Trans-Clear Part 3062b Element 6514232 or 6223655 ×1

Minifig Headwear 1 piece

  • Hair 2 Pig Tails and Bangs, Iridescent Print Bright Light Blue Part 34697pr0001 Element 6261350 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Weapon Gun Ray / Sci Fi - Rounded Heat Diffusers White Part 13608 Element 6257517 ×1

Minifigures 3 figures

  • Emmet, Worn Outfit, Happy / Frustrated Minifigure, checked as a whole figure ×1
  • Sweet Mayhem - Wings, Helmet Minifigure, checked as a whole figure ×1
  • Unikitty / Warrior Kitty, Bushy Tail 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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