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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.

Retro Telephone

Checking

31174 Retro Telephone

383 pieces in 96 part and color combinations.

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 61 pieces

  • Plate 1 x 6 Black Part 3666 Element 366626 ×2
  • Plate 1 x 1 Bright Light Blue Part 3024 Element 6184484 or 6013803 1 spare in the box ×6
  • Plate 1 x 2 Bright Light Blue Part 3023 Element 6469765 or 6362254 ×6
  • Plate 1 x 4 Bright Light Blue Part 3710 Element 6361988 or 6013805 ×10
  • Plate 1 x 8 Bright Light Blue Part 3460 Element 6372125 ×4
  • Plate 2 x 2 Bright Light Blue Part 3022 Element 6099373 or 4539745 ×3
  • Plate 2 x 4 Bright Light Blue Part 3020 Element 6132418 or 6013811 ×8
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×2
  • Plate 4 x 4 Light Bluish Gray Part 3031 Element 4243797 or 4211403 ×2
  • Plate 4 x 6 Light Bluish Gray Part 3032 Element 4211404 ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×2
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×8
  • Plate 1 x 5 Yellow Part 78329 Element 6501668 ×4
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×3

Tiles 36 pieces

  • Tile 2 x 3 Black Part 26603 Element 6162892 ×2
  • Tile 1 x 2 with Groove Bright Light Blue Part 3069b Element 6099365 or 6097861 ×8
  • Tile 1 x 4 with Groove Bright Light Blue Part 2431 Element 6468267 or 6372255 ×4
  • Tile 2 x 4 with Groove Bright Light Blue Part 87079 Element 6372257 ×3
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×10
  • Tile 1 x 1 with Groove Trans-Green Part 3070b Element 6581818 or 6254249 1 spare in the box ×4
  • Tile 2 x 4 with Groove Yellow Part 87079 Element 6388490 or 4560181 ×1
  • Tile 2 x 6 Yellow Part 69729 Element 6388486 or 6329869 ×4

Plates Special 34 pieces

  • Plate Special 2 x 2 with Horizontal T-Bar Underneath Dark Bluish Gray Part 5066 Element 6457961 ×2
  • Plate Special 4 x 4 Splat Gear, 10 Teeth Dark Bluish Gray Part 35443 Element 6252371 ×1
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×2
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×1
  • Plate Special 1 x 2, Top Clip [Open O] Light Bluish Gray Part 44861 Element 6326078 ×2
  • Plate Special 1 x 4 with Bar Down Light Bluish Gray Part 30043 Element 6173095 or 4261605 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated Version Light Bluish Gray Part 4304 Element 6469440 ×9
  • Technic Plate 2 x 4 [3 Holes] Light Bluish Gray Part 3709 Element 4211444 ×2
  • Plate Special 8 x 8 with Grille [Hole in Center] Lime Part 4151b Element 6490404 or 6391755 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted Reddish Brown Part 99207 Element 6226436 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×8
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×2
  • Plate Special 2 x 2 with Double Inverted Curve, 1 Stud Yellow Part 4190 Element 6511008 ×1

Bricks Round and Cones 33 pieces

  • Brick Round 3 x 4 x 2/3 Triple Curved with 2 Sunk Studs Bright Light Blue Part 93604 Element 6555104 ×8
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] Bright Light Blue Part 85080 Element 6383104 ×4
  • Brick Round, Curved 2 x 2 x 1, Corner Bright Light Blue Part 5846 Element 6555106 ×4
  • Brick Round, Curved Triple 1 x 4 x 1 Bright Light Blue Part 4045 Element 6522322 ×4
  • Brick Round 2 x 2 [Grill] Pearl Gold Part 92947 Element 6107194 ×2
  • Cone 1 x 1 [Top Groove] Tan Part 59900 Element 4529237 ×1
  • Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end White Part 25214 Element 6194851 ×10

Bricks 29 pieces

  • Brick 1 x 1 Bright Light Blue Part 3005 Element 6285271 or 6014082 ×8
  • Brick 1 x 2 Bright Light Blue Part 3004 Element 6100322 or 6014470 ×4
  • Brick 1 x 4 Bright Light Blue Part 3010 Element 6287903 or 6014471 ×12
  • Brick 2 x 4 Bright Light Blue Part 3001 Element 6555737 or 6014474 ×5

Tiles Round and Curved 29 pieces

  • Tile Round 1 x 1 Quarter Bright Light Blue Part 25269 Element 6316571 1 spare in the box ×8
  • Tile Round 1 x 1 Bright Pink Part 98138 Element 6284587 or 6055380 1 spare in the box ×9
  • Tile 2 x 2 Curved, Macaroni Light Bluish Gray Part 27925 Element 6163990 ×4
  • Tile 4 x 4 Curved, Macaroni Light Bluish Gray Part 27507 Element 6458164 or 6163989 ×4
  • Tile 3 x 3 Curved, Macaroni White Part 79393 Element 6564909 or 6373439 ×4

Plates Round Curved and Dishes 22 pieces

  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×4
  • Plate Special 4 x 4 with 3 x 3 Quarter Round Cutout Bright Light Blue Part 35044 Element 6555105 ×6
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×3
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×2
  • Plate Round 4 x 4 with 2 x 2 Round Opening Light Bluish Gray Part 11833 Element 6167798 or 6028015 ×2
  • Plate Round 1 x 1 with Open Stud Red Part 85861 Element 6223427 1 spare in the box ×2
  • Plate Round 6 x 6 with Hole Tan Part 11213 Element 6093862 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1

Bricks Curved 20 pieces

  • Brick Curved 1 x 2 x 1 with Curved Top Bright Light Blue Part 5841 Element 6535838 ×14
  • Brick Curved 2 x 4 x 1 Bright Light Blue Part 5842 Element 6535836 ×4
  • Brick Curved 8 x 2 No Studs Bright Light Blue Part 42918 Element 6383079 ×2

Bricks Special 20 pieces

  • Brick Special 1 x 2 with 1 Center Stud on 1 Side, Bottom Stud Holder Light Bluish Gray Part 86876 Element 6383177 ×4
  • Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×2
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides White Part 26604 Element 6224811 ×8
  • Brick Special 1 x 2 with 2 Studs on 1 Side White Part 11211 Element 6550150 or 6058177 ×6

Technic Pins 20 pieces

  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×18

Bricks Sloped 18 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Bright Light Blue Part 54200 Element 6372124 1 spare in the box ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Bright Light Blue Part 85984 Element 6550232 or 6133293 ×8
  • Brick Sloped 33° 3 x 1 Bright Light Blue Part 4286 Element 6385731 or 6056239 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Bright Light Blue Part 3660 Element 6383073 ×2

Technic Connectors 15 pieces

  • Technic Axle Connector Double Flexible [Rubber] Black Part 45590 Element 4198367 ×2
  • Technic Axle Connector Smooth [with x Hole + Orientation] Lime Part 59443 Element 6302735 ×4
  • Technic Pin Connector Round [Slotted] White Part 62462 Element 6550164 or 6173116 ×9

Tiles Special 12 pieces

  • Tile Special 2 x 2 Inverted Black Part 11203 Element 6013867 ×4
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Dark Bluish Gray Part 99563 Element 6331866 ×1
  • Tile Special Round 1 x 1 with Hollow Bar Dark Bluish Gray Part 20482 Element 6271752 1 spare in the box ×1
  • Tile Special Round 2 x 2 with Hole Dark Bluish Gray Part 15535 Element 6055313 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×4

Technic Bushes 11 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×4
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×7

Technic Axles 10 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×4
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×3
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1
  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×2

Technic Bricks 5 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×1
  • Technic Brick 1 x 1 with Axle Hole Light Bluish Gray Part 73230 Element 6336539 ×4

Hinges, Arms and Turntables 3 pieces

  • Turntable 2 x 2 Female Dark Orange Part 27448 Element 6536571 or 6375188 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly] Light Bluish Gray Part 1927 Element 6416524 ×2

Animal / Creature Body Parts 2 pieces

  • Creature Body Part, Horn (Unicorn) Flat Silver Part 89522 Element 6214214 or 4612829 1 spare in the box ×1
  • Creature Body Part, Barb Large (Claw, Talon) with Clip Light Bluish Gray Part 16770 Element 6359723 or 6271212 ×1

Pneumatics 1 piece

  • Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×1

Stickers 1 piece

  • Sticker Sheet for Set 31174-1 [No Color/Any Color] Part 10114645 Element 6568614 ×1

String, Bands and Reels 1 piece

  • Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×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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