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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.

Knight and Castle

Checking

5929 Knight and Castle

141 pieces in 63 part and color combinations, plus 1 minifigure.

LEGO counts 144 pieces. This inventory comes from a separate parts catalog and lists 145, including the 4 parts inside the minifigures; 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.

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Piece checklist

Bricks 59 pieces

  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×6
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×1
  • Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 ×2
  • Brick 1 x 1 with Simple Black Eye with White Pupil Print Green Part 3005pr0003 Element 4569081 ×2
  • Brick 2 x 3 Green Part 3002 Element 4109674 or 300228 ×2
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×8
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×12
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×7
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×2
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×2
  • Brick 1 x 1 Red Part 3005 Element 300521 ×3
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Brick 1 x 8 Red Part 3008 Element 300821 ×1
  • Brick 2 x 4 Red Part 3001 Element 300121 ×2
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×1
  • Brick 1 x 1 with Simple Black Eye with White Pupil Print White Part 3005pr0003 Element 4569080 ×2

Bricks Sloped 19 pieces

  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×2
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×2
  • Brick Sloped Inverted 45° 2 x 2 Double Convex Dark Bluish Gray Part 3676 Element 4210862 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×2
  • Brick Sloped 45° 2 x 2 Green Part 3039 Element 303928 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 1 spare in the box ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Red Part 3660 Element 366021 ×2

Plates 16 pieces

  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×1
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×1
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×2
  • Plate 2 x 3 Green Part 3021 Element 302128 ×1
  • Plate 4 x 12 Green Part 3029 Element 4279059 or 302928 ×1
  • Plate 2 x 2 Lime Part 3022 Element 4613977 or 4537937 ×1
  • Plate 2 x 4 Lime Part 3020 Element 4537936 or 4534667 ×3
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×1

Bricks Round and Cones 9 pieces

  • Brick Round 1 x 1 Open Stud Reddish Brown Part 3062b Element 4211183 ×7
  • Cone 1 x 1 [Top Groove] Trans-Orange Part 59900 Element 6514017 or 6172233 ×2

Bricks Special 6 pieces

  • Brick Special 1 x 1 with Headlight Green Part 4070 Element 4187334 or 4109676 ×3
  • Brick Special 1 x 1 x 3 with 2 Clips Vertical [Solid Stud, Thick U Clips] Red Part 60583a ×1
  • Brick Special 1 x 1 with Handle White Part 2921 Element 6615537 or 6170567 ×2

Windows and Doors 6 pieces

  • Window 1 x 2 x 2 & 2/3 Pane Twisted Bar with Rounded Top Black Part 30045 Element 4105221 ×3
  • Door 1 x 4 x 6 Round Top with Window and Keyhole, Reinforced Edge Reddish Brown Part 64390 Element 4561915 ×1
  • Window 1 x 2 x 2 2/3 with Rounded Top White Part 30044 Element 6619297 or 4247139 ×2

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 1 spare in the box ×4

Plates Special 4 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Green Part 3794b Element 379428 ×1
  • Plate Special 2 x 2 with Wheel Holders Light Bluish Gray Part 4600 Element 4211504 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Orange Part 2540 Element 4190164 or 4163269 ×2

Bricks Curved 3 pieces

  • Brick Arch 1 x 4 Light Bluish Gray Part 3659 Element 4211435 ×2
  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Light Bluish Gray Part 3307 Element 4221600 ×1

Minifig Accessories 2 pieces

  • Equipment Key Dark Bluish Gray Part 62808 ×2

Plants & Trees 2 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Bright Green Part 4727 Element 4143562 ×2

Tiles Special 2 pieces

  • Tile Special 1 x 1 with Clip with Rounded Tips Yellow Part 12825 Element 6030719 ×2

Wheels and Tyres 2 pieces

  • Wheel Wagon Large (33mm D.), hole notched for wheels holder pin Reddish Brown Part 4489b Element 4211279 ×2

Animal / Creature Accessories 1 piece

  • Animal / Creature Accessory, Horse Hitching, 1 x 2 Plate and 2 x 2 Plate [Studded] Dark Bluish Gray Part 2397 Element 4268684 ×1

Bars, Ladders and Fences 1 piece

  • Antenna 1 x 4 with Rounded Top White Part 3957a ×1

Containers 1 piece

  • Barrel 2 x 2 x 2 Reddish Brown Part 2489 Element 6605306 or 6278989 ×1

Energy Effects 1 piece

  • Wave / Flame Rounded with Base Rim Trans-Orange Part 6126b Element 6167741 or 4261397 ×1

Flags, Banners and Signs 1 piece

  • Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] Blue Part 11055 Element 6011816 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Weapon Sword / Shortsword Pearl Titanium Part 3847 Element 4617242 ×1

Rock 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Red Part 30153 Element 6513969 or 6247785 ×1

Minifigures 1 figure

  • Knight - Dark Bluish Grey Torso, Black Legs, Light Bluish Grey Helmet 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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