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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.

Universal Building Set

Checking

402 Universal Building Set

385 pieces in 115 part and color combinations, plus 4 minifigures.

The official piece count includes the 16 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

Bricks 130 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×14
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×24
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×12
  • Brick 1 x 4 with Chrome Silver Car Grill Print [Embossed] Blue Part 3010apr0003 ×1
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×15
  • Brick 1 x 6 with Black Car Grill Print Blue Part 3009apr0004 ×1
  • Brick 1 x 8 Blue Part 3008 Element 300823 ×14
  • Brick 2 x 10 Blue Part 3006 Element 4615600 or 300623 ×2
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×4
  • Brick 2 x 3 without Cross Supports Blue Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×4
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×2
  • Brick 1 x 2 Trans-Clear Part 3004 Element 4256587 or 300410 ×2
  • Brick 1 x 4 Trans-Clear Part 3010 Element 4256588 or 4227529 ×2
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×4
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×4
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×4
  • Brick 1 x 6 with Black Car Grill Print Yellow Part 3009apr0004 ×1
  • Brick 1 x 8 Yellow Part 3008 Element 300824 ×4
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×2
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×2
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×2

Bricks Sloped 83 pieces

  • Brick Sloped 45° 2 x 1 without Bottom Pin Blue Part 3040a ×2
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×6
  • Brick Sloped 45° 2 x 2 Double Concave Blue Part 3046a Element 6088710 or 4626370 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Small Stud Holes] Blue Part 3660b ×10
  • Brick Sloped 45° 2 x 1 Double / Inverted with Hollow Bottom Red Part 3049c ×1
  • Brick Sloped 45° 2 x 1 Double without Bottom Pin Red Part 3044a ×1
  • Brick Sloped 45° 2 x 1 Triple with Hollow Underside Red Part 3048a ×2
  • Brick Sloped 45° 2 x 1 without Bottom Pin Red Part 3040a ×2
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×8
  • Brick Sloped 45° 2 x 2 Double Red Part 3043 Element 304321 ×1
  • Brick Sloped 45° 2 x 2 Double Concave Red Part 3046a Element 4218892 or 4200489 ×4
  • Brick Sloped 45° 2 x 2 Double Convex Red Part 3045 Element 4163087 or 304521 ×4
  • Brick Sloped 45° 2 x 3 Red Part 3038 Element 6303213 or 4195081 ×4
  • Brick Sloped 45° 2 x 3 Double Red Part 3042 Element 304221 ×2
  • Brick Sloped 45° 2 x 4 Red Part 3037 Element 303721 ×14
  • Brick Sloped 45° 2 x 4 Double Red Part 3041 Element 4144003 or 304121 ×4
  • Brick Sloped 45° 2 x 2 Trans-Clear Part 3039 Element 6514100 or 6244886 ×2
  • Brick Sloped 45° 2 x 4 Trans-Clear Part 3037 Element 303740 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Small Stud Holes] Yellow Part 3660b ×6

Plates 63 pieces

  • Plate 1 x 1 Blue Part 3024 Element 302423 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×6
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×2
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×4
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×6
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×4
  • Plate 4 x 10 Blue Part 3030 Element 303073 or 303023 ×2
  • Plate 4 x 12 Blue Part 3029 Element 4528850 or 4166870 ×2
  • Plate 4 x 4 Blue Part 3031 Element 4243815 or 303123 ×1
  • Plate 4 x 6 Blue Part 3032 Element 303223 ×1
  • Plate 4 x 8 Blue Part 3035 Element 303523 ×2
  • Plate 6 x 8 Blue Part 3036 Element 303673 or 303623 ×1
  • Plate 1 x 8 Light Gray Part 3460 Element 346002 ×4
  • Plate 1 x 8 Red Part 3460 Element 346021 ×2
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×2
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×6
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×4
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×2
  • Plate 4 x 4 Yellow Part 3031 Element 4243817 or 303124 ×1
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×1
  • Plate 4 x 8 Yellow Part 3035 Element 303524 ×2

Wheels and Tyres 38 pieces

  • Brick Special 2 x 2 [Red Wheels for Single Tyre] Black Part 3137c01 ×4
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×4
  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×3
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×8
  • Tyre 43 x 17 Black Part 3634 Element 4523564 or 363426 ×4
  • Tyre Offset Tread 24 x 8 Black Part 3483 Element 4501048 or 348326 ×4
  • Wheel Centre Small with Stub Axles (Pulley Wheel) Red Part 3464 Element 4180583 or 346421 ×3
  • Wheel Old with 4 Studs Red Part 7039 Element 7039 ×4
  • Wheel Spoked with Stud Red Part 242c01 ×4

Windows and Doors 18 pieces

  • Door Frame 1 x 3 x 4 Blue Part 3579 ×2
  • Door 1 x 3 x 4 with Glass Red Part 7930 ×2
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Red Part 3081c01 Element 7026 ×8
  • Window 1 x 4 x 2 Classic with Short Sill [Complete] Red Part 453cc01 ×2
  • Window 1 x 2 x 2 Shutter Yellow Part 3582 Element 4163333 ×4

Transportation - Land 10 pieces

  • Plate Special 2 x 2 with Wheel Holder Bottom Blue Part 8 ×3
  • Vehicle Track, Train, Tapered Rail Straight 16L Blue Part 3228a ×4
  • Construction Vehicle Bucket Arm, Large Red Part 828 ×1
  • Construction Vehicle Bucket Smooth 3 x 5 x 1 & 1/3 Yellow Part 3433 Element 343324 ×1
  • Tipper End Sloped Yellow Part 3436 Element 343624 ×1

Transportation - Sea and Air 8 pieces

  • Propeller 2 Blade Light Gray Part 3480 ×2
  • Propeller 4 Blade 5 Diameter with Hole for Rotor Holder Light Gray Part 3461 ×1
  • Engine - Smooth, Small 1 x 2 Side Plate [No Axle Holders] Yellow Part 3475a ×2
  • Plate Special 2 x 2 with Helicopter Tail Rotor Holder Yellow Part 3481 ×2
  • Plate Special 2 x 3 with Helicopter Rotor Holder Yellow Part 3462 ×1

Hinges, Arms and Turntables 6 pieces

  • Turntable 4 x 4 Square Base with Top, Complete Assembly Black Part 3403c01 Element 4221663 or 4143677 ×1
  • Brick Special 1 x 2 with Digger Bucket Arm Holder Blue Part 3317 ×1
  • Hinge Plate 2 x 5 with Large Hole [Complete Assembly] Red Part 3149bc01 Element 4188477 or 4106942 ×1
  • Hinge Plate 2 x 9 with Hole Close to Hinge [Complete Assembly] Red Part 3324ac01 ×2
  • Brick Special 1 x 2 with Digger Bucket Arm Holder Yellow Part 3317 Element 331724 ×1

Plates Special 6 pieces

  • Plate Special 1 x 4 with Towball Blue Part 3184 ×1
  • Plate Special 1 x 4 with Towball Socket, Long, 2 Slots Blue Part 3183a ×1
  • Plate Special 2 x 5 with Towball Socket Red Part 3491 ×1
  • Plate Special 3 x 2 with Rounded End, Hole Red Part 3176 Element 4188189 or 317621 ×1
  • Plate Special 1 x 4 with Towball Yellow Part 3184 Element 318424 ×1
  • Plate Special 1 x 4 with Towball Socket, Long, 2 Slots Yellow Part 3183a ×1

Bars, Ladders and Fences 4 pieces

  • Fence Lattice 1 x 4 x 1 Yellow Part 3633 Element 4190509 or 363324 ×4

Bricks Curved 4 pieces

  • Brick Arch 1 x 6 Blue Part 3455 Element 4544434 or 4186666 ×4

Bricks Special 4 pieces

  • Brick Special 1 x 1 x 2 with Shutter Holder Blue Part 3581 Element 358123 ×4

Bricks Round and Cones 2 pieces

  • Brick Round 1 x 1 Solid Stud Blue Part 3062a ×2

Panels 2 pieces

  • Panel, Trapezoid, Tipper End Flat with Pins, 1 x 2 Anti-studs Yellow Part 3145 ×2

String, Bands and Reels 2 pieces

  • String Cord Thin (0.5mm) [Undetermined Length] Black Part 56823 Element 7009426 ×1
  • String Reel Winch 4 x 4 x 2 with Metal Handle, Red Drum Yellow Part 586c01 ×1

Supports, Girders and Cranes 2 pieces

  • Hook, Plate 1 x 2 with Crane Hook Right Red Part 3127b ×1
  • Crane Bucket [Complete Assembly] Yellow Part 3492c01 Element 6021197 or 4614755 ×1

Windscreens and Fuselage 2 pieces

  • Windscreen 2 x 4 x 1 2/3 Trans-Clear Part 21 ×2

Baseplates 1 piece

  • Baseplate 24 x 32 with Rounded Corners Green Part 10a ×1

Minifigures 4 figures

  • LEGOLAND Black Minifigure, checked as a whole figure ×2
  • LEGOLAND Red Minifigure, checked as a whole figure ×2

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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