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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

113 Universal Building Set

293 pieces in 81 part and color combinations.

LEGO counts 258 pieces. This inventory comes from a separate parts catalog and lists 293; 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

Blue 73 pieces

  • Arm Holder Brick 2 x 2 with Hole and 2 Arms Blue Part 792c03 ×1
  • Arm Piece Straight with 2 and 3 Fingers Blue Part 3612 Element 610123 ×2
  • Arm Piece with Towball Socket, 3 Fingers Blue Part 3613 ×2
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×4
  • Brick 1 x 8 with Bottom Tubes and 3 Lowered Cross Supports Blue Part 3008b ×2
  • Brick 2 x 10 Blue Part 3006 Element 4615600 or 300623 ×1
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×8
  • Brick 2 x 3 without Cross Supports Blue Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×12
  • Brick Sloped 33° 2 x 2 Double Blue Part 3300 Element 330023 ×2
  • Brick Sloped 33° 2 x 4 Double Blue Part 3299 Element 329923 ×2
  • Brick Sloped 33° 3 x 2 Blue Part 3298 Element 6294307 or 6141996 ×4
  • Brick Sloped 33° 3 x 4 Blue Part 3297 Element 6088711 or 329723 ×12
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Small Stud Holes] Blue Part 3660b ×4
  • Door 1 x 3 x 4 with Glass Blue Part 7930 ×1
  • Plate 4 x 8 Blue Part 3035 Element 303523 ×1
  • Plate 6 x 14 Blue Part 3456 Element 345623 ×1
  • 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
  • Window 1 x 2 x 2 Shutter Blue Part 3582 Element 358223 ×4

Red 69 pieces

  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×8
  • Brick 2 x 3 without Cross Supports Red Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×20
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×1
  • Brick Special 1 x 1 x 2 with Shutter Holder Red Part 3581 Element 4207299 or 358121 ×4
  • Door Frame 1 x 3 x 4 Red Part 3579 ×1
  • Fence Lattice 1 x 4 x 2 Red Part 3185 Element 318521 ×5
  • Hinge Plate 2 x 4 - Male (Digger Bucket Holder) Red Part 3315 Element 331521 ×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 ×1
  • Homemaker Hat, Police Style Red Part upn0247 ×1
  • Plate 4 x 10 Red Part 3030 Element 4535164 or 4188302 ×1
  • Plate 6 x 10 Red Part 3033 Element 6509008 or 6249097 ×1
  • Wheel Old with 4 Studs Red Part 7039 Element 7039 ×8
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Red Part 3081c01 Element 7026 ×2
  • Window 1 x 4 x 2 Classic with Short Sill [Complete] Red Part 453cc01 ×2

Yellow 60 pieces

  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×8
  • Brick 1 x 6 with Bottom Tubes and 2 Lowered Cross Supports Yellow Part 3009b ×2
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×8
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×20
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Small Stud Holes] Yellow Part 3660b ×2
  • Construction Vehicle Bucket Smooth 3 x 5 x 1 & 1/3 Yellow Part 3433 Element 343324 ×1
  • Homemaker Figure Head with Eyes, Eyebrows and Smile Print Yellow Part 685pr0004 ×1
  • Homemaker Figure Head with Eyes, Freckles and Smile Print Yellow Part 685pr0003 ×1
  • Homemaker Figure Head with Face Print Yellow Part 685pr0001 ×1
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×2
  • Plate Round 1 x 1 with Towball and Round Hole [Maxifig Hand] Yellow Part 3614a ×6

Black 46 pieces

  • Arm Holder Brick 2 x 2 with Hole and 2 Arms Black Part 792c03 ×1
  • Arm Piece Straight with 2 and 3 Fingers Black Part 3612 Element 610126 ×2
  • Arm Piece with Towball Socket, 3 Fingers Black Part 3613 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×4
  • Brick 2 x 3 without Cross Supports Black Part 3002a ×2
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×8
  • Brick Special 2 x 2 [Red Wheels for Single Tyre] Black Part 3137c01 ×2
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×4
  • Homemaker Hair Long Black Part upn0223 ×1
  • Homemaker Hat, Police Style Black Part upn0247 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×3
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×4
  • Tyre Offset Tread 24 x 8 Black Part 3483 Element 4501048 or 348326 ×8

White 35 pieces

  • Arm Holder Brick 2 x 2 with Hole and 2 Arms White Part 792c03 ×1
  • Arm Piece Straight with 2 and 3 Fingers White Part 3612 Element 4174738 ×2
  • Arm Piece with Towball Socket, 3 Fingers White Part 3613 Element 4114147 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×4
  • Brick 1 x 8 with Bottom Tubes and 3 Lowered Cross Supports White Part 3008b ×2
  • Brick 2 x 2 without Inside Ridges White Part 3003a Also in Trans-Clear ×8
  • Brick 2 x 3 without Cross Supports White Part 3002a ×2
  • Brick 2 x 4 without Cross Supports White Part 3001a Also in Trans-Clear ×12
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] White Part 3081c01 Element 73594 ×1
  • Window 1 x 4 x 2 Classic with Short Sill [Complete] White Part 453cc01 ×1

Trans-Clear 6 pieces

  • Brick 2 x 2 without Inside Ridges Trans-Clear Part 3003a Also in White ×2
  • Brick 2 x 4 without Cross Supports Trans-Clear Part 3001a Also in White ×4

Green 2 pieces

  • Brick 10 x 20 with Bottom Tubes in single row around edge, with dual '+' Cross Supports Green Part 700c ×1
  • Plant, Pine Tree, Large, 4 x 4 x 6 2/3 Green Part 3471 Element 6248463 or 347128 ×1

Brown 1 piece

  • Homemaker Hair Short Brown Part upn0225 ×1

Milky White 1 piece

  • Antenna with Side Spokes Milky White Part 3144 ×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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