BlockTalk Find Your Set

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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.

Small Freestyle Box

Checking

4158 Small Freestyle Box

128 pieces in 55 part and color combinations, plus 1 minifigure.

The piece count includes the 4 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 70 pieces

  • Brick 1 x 1 Blue Part 3005 Element 300523 ×2
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×6
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×4
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×2
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×2
  • Brick 2 x 2 Corner Blue Part 2357 Element 4558606 or 4533323 ×2
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×1
  • Brick 2 x 6 Blue Part 2456 Element 4181139 or 245623 ×1
  • Brick 1 x 1 Red Part 3005 Element 300521 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 2 x 4 Red Part 3001 Element 300121 ×1
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×8
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×4
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×2
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×2
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×2
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×2
  • Brick 1 x 1 with Simple Eye Black and White Print Yellow Part 3005pr9996 Element 82357 ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick 1 x 4 with Black Smile Print Yellow Part 3010pr9980 Element 82356 ×1
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×2
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×1

Bricks Sloped 19 pieces

  • Brick Sloped 33° 2 x 2 Double Yellow Part 3300 Element 330024 ×2
  • Brick Sloped 33° 2 x 4 Double Yellow Part 3299 Element 6334233 or 329924 ×1
  • Brick Sloped 33° 3 x 2 with Freestyle Flag Print Yellow Part 3298pr0017 Element 4107718 ×4
  • Brick Sloped 33° 3 x 4 Yellow Part 3297 Element 6256980 or 6088712 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×4
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×2
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Yellow Part 3660 Element 366024 ×2

Plants & Trees 8 pieces

  • Plant, Flower Stem Green Part 3741 Element 6277589 or 374128 ×2
  • Plant, Flower - Small Red Part 3742 1 spare in the box ×3
  • Plant, Flower - Small Yellow Part 3742 1 spare in the box ×3

Windows and Doors 7 pieces

  • Door 1 x 4 x 5 with 4 Panes, Squared Base Red Part 3861b Element 386121 ×1
  • Window 1 x 4 x 3 Red Part 3853 Element 385321 ×2
  • Window 1 x 2 x 3 Pane White Part 3854 Element 385401 ×4

Plates 5 pieces

  • Plate 1 x 4 Blue Part 3710 Element 371023 ×2
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×2
  • Plate 4 x 6 Blue Part 3032 Element 303223 ×1

Bars, Ladders and Fences 4 pieces

  • Fence Lattice 1 x 4 x 1 Red Part 3633 Element 4187280 or 363321 ×2
  • Antenna 1 x 4 with Rounded Top White Part 3957a ×2

Bricks Curved 4 pieces

  • Brick Curved 2 x 3 Red Part 6215 Element 621521 ×2
  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside White Part 3307 Element 330701 ×2

Bricks Round and Cones 4 pieces

  • Brick Round 1 x 1 Open Stud White Part 3062b Element 6619283 or 306201 ×4

Plates Wedged 2 pieces

  • Wedge Plate 3 x 3 Cut Corner Blue Part 2450 Element 6536558 or 4609330 ×2

Baseplates 1 piece

  • Baseplate 8 x 16 Green Part 3865 Element 4219812 or 4179599 ×1

Flags, Banners and Signs 1 piece

  • Flag 4 x 1 Wavy [First Wave Left] Green Part 4495a ×1

Plates Round Curved and Dishes 1 piece

  • Dish 4 x 4 Inverted [Radar] with Stripes Red/Green Petals Print White Part 3960pr9990 Element 81847 ×1

Tiles Special 1 piece

  • Tile Special 2 x 2 with Top Pin Red Part 2460 Element 246021 ×1

Transportation - Sea and Air 1 piece

  • Propeller 3 Blade 3 Diameter with Axle Cross Yellow Part 6041 Element 604124 ×1

Minifigures 1 figure

  • Man, Green Jacket, Black Legs, Sunglasses 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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