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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.

Whomp's Lava Trouble Expansion Set

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71364 Whomp's Lava Trouble Expansion Set

133 pieces in 56 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.

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

Plates 35 pieces

  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×18
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 Also in Trans-Orange ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate 2 x 16 Red Part 4282 Element 428221 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×6
  • Plate 2 x 8 Reddish Brown Part 3034 Element 4211211 ×1
  • Plate 1 x 2 Trans-Orange Part 3023 Element 6514005 or 6240217 Also in Orange ×4

Plates Round Curved and Dishes 21 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Blue Part 4032a Element 403223 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×10
  • Plate Round 4 x 4 with Pin Hole Dark Bluish Gray Part 60474 Element 4528323 ×1
  • Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs Light Bluish Gray Part 66792 Element 6294703 ×4
  • Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs Red Part 66792 Element 6301842 ×2
  • Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs Red Part 66789 Element 6294705 ×1
  • Plate Round Corners 8 x 8 x 2/3 Circle with Reduced Knobs Red Part 66790 Element 6294706 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×1

Bricks Sloped 17 pieces

  • Brick Sloped Inverted 33° 3 x 1 with Internal Stopper and No Front Stud Connection Dark Bluish Gray Part 4287c Element 4211068 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Dark Bluish Gray Part 3660 Element 4211000 ×6
  • Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×2
  • Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Trans-Orange Part 22388 Element 6581704 or 6250584 1 spare in the box ×5

Bricks 16 pieces

  • Brick 2 x 2 with White 'P' Print Blue Part 3003pr0142 Element 6309005 ×1
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×1
  • Brick 1 x 2 x 2 with Inside Stud Holder Dark Bluish Gray Part 3245c Element 4210978 ×8
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×1
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×4
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×1

Plates Special 13 pieces

  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Black Part 41740 Element 6254045 ×2
  • Plate Special 1 x 2 with End Towball Dark Bluish Gray Part 22890 Element 6370802 or 6338168 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Bluish Gray Part 18674 Element 6115080 ×2
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×2
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Light Bluish Gray Part 99206 Element 4654577 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Orange Part 15573 Element 6092599 ×1

Tiles 10 pieces

  • Tile 2 x 2 with 'P' and Barcode Print (Sticker) Blue Part 3068bpr0027 Element 6317955 ×1
  • Tile 2 x 2 with Whomp and Barcode Print (Sticker) Dark Bluish Gray Part 3068bpr0026 Element 6317954 ×1
  • Tile 2 x 2 with Groove Green Part 3068b Element 4107762 or 306828 ×1
  • Tile 2 x 3 Light Bluish Gray Part 26603 Element 6171894 ×2
  • Tile 2 x 2 with Groove Reddish Brown Part 3068b Element 4271949 or 4264030 ×2
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×1
  • Tile 2 x 2 with Lava Bubble and Barcode Print (Sticker) Yellow Part 3068bpr9973 Element 6317953 ×1
  • Tile 2 x 2 with Two Black Ovals (Lava Bubble Eyes) Print Yellow Part 3068bpr0433 Element 6308990 ×1

Bricks Special 6 pieces

  • Bracket 5 x 2 x 2 1/3 with Holes, Inside Stud Holder Black Part 76766 Element 6171066 or 6012983 ×1
  • Bracket 3 x 2 x 1 1/3 with Pin Bottom Dark Bluish Gray Part 18671 Element 6099909 ×2
  • Brick Special 1 x 2 with Studs on 2 Sides Red Part 52107 Element 4569056 ×1
  • Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 Sides Yellow Part 67329 Element 6310247 ×2

Tiles Special 5 pieces

  • Tile Special 2 x 2 Inverted Light Bluish Gray Part 11203 Element 6132886 ×2
  • Tile Special Round 1 x 1 with Hollow Bar Red Part 20482 Element 6215539 or 6188827 1 spare in the box ×2
  • Tile Special 2 x 2 Inverted White Part 11203 Element 6564913 or 6013866 ×1

Tiles Round and Curved 3 pieces

  • Tile Round 2 x 2 with Bottom Stud Holder Light Bluish Gray Part 14769 Element 6052200 ×2
  • Tile Round Corners 4 x 4 x 2/3 with Double Arrows and Barcode Print (Sticker) (71364-1/71368-1) Medium Nougat Part 68869pr0073 Element 6335169 ×1

Bricks Curved 2 pieces

  • Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End Light Bluish Gray Part 47457 Element 4494475 ×2

Energy Effects 2 pieces

  • Flame / Headwear Accessory Plume / Feather, Triple Point Trans-Orange Part 64647 Element 6314353 or 6100044 1 spare in the box ×2

Bricks Wedged 1 piece

  • Brick Wedged, Sloped 4 x 4 with White Underside Pattern (Koopa Troopa Shell) Green Part 67013pat0001 Element 6495047 or 6299928 ×1

Hinges, Arms and Turntables 1 piece

  • Turntable 4 x 4 Square Base, Locking Black Part 61485 Element 4517986 ×1

Panels 1 piece

  • Panel 1 x 6 x 5 with Whomp Face Print Light Bluish Gray Part 59349pr0009 Element 6308987 ×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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