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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.

Boulder Blaster

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70747 Boulder Blaster

223 pieces in 90 part and color combinations, plus 3 minifigures.

The official piece count includes the 13 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

Plates 36 pieces

  • Plate 4 x 6 Black Part 3032 Element 303226 ×2
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×5
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×1
  • Plate 2 x 8 Green Part 3034 Element 303428 ×1
  • Plate 1 x 12 Light Bluish Gray Part 60479 Element 4514846 ×2
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate 1 x 4 Orange Part 3710 Element 4118782 ×2
  • Plate 2 x 4 Orange Part 3020 Element 4158355 or 4122468 ×1
  • Plate 2 x 3 Red Part 3021 Element 302121 ×1
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×13
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×1
  • Plate 1 x 3 Sand Green Part 3623 Element 6069257 or 4642427 ×4

Plates Special 32 pieces

  • Plate Special 1 x 2 with Clip Horizontal on End Black Part 63868 Element 6336989 or 4535739 ×16
  • Plate Special 2 x 2 with Bar Frame Octagonal, Reinforced, Completely Round Studs Black Part 75937 Element 6018805 ×3
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Dark Bluish Gray Part 4081b Element 6281996 or 4632574 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 ×3
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×1
  • Plate Special 1 x 2 with Long Stud Receptacle (Space Wing) Light Bluish Gray Part 4596 Element 6074888 or 4625001 ×1
  • Plate Special 1 x 2, Top Clip [Split] Light Bluish Gray Part 92280 Element 4598526 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Pearl Gold Part 61252 Element 6284379 or 4523160 ×4

Bricks Sloped 23 pieces

  • Brick Sloped 18° 4 x 1 Black Part 60477 Element 4515362 ×4
  • Brick Sloped Inverted 33° 3 x 1 with Internal Stopper and No Front Stud Connection Black Part 4287c Element 428726 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 with Dark Red Horizon Screen and Gold Switches and Buttons Print Dark Bluish Gray Part 85984pr0002 Element 6101924 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Bluish Gray Part 3040b Element 4211135 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Reddish Brown Part 61409 Element 6214443 or 6096670 ×10
  • Brick Sloped 45° 2 x 1 with Bottom Pin Reddish Brown Part 3040b Element 4211199 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Sand Green Part 54200 Element 4652205 1 spare in the box ×2

Technic Pins 21 pieces

  • Technic Pin Double Triangle 1 x 3 with 2 Clips Completely Round Pinholes Black Part 47994 Element 4220098 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×7
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×2
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×8
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Projectiles / Launchers 17 pieces

  • Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray Top Dark Bluish Gray Part 15400 Element 6324200 or 6048898 ×8
  • Projectile, Spring Shooter Ammunition 8L Bar Trans-Orange Part 15303 Element 6296380 or 6072635 ×9

Bricks Round and Cones 9 pieces

  • Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 ×1
  • Cone 2 x 2 x 2, Open Stud Black Part 3942c Element 6092664 or 6022160 ×1
  • Brick Round 2 x 2 with Axle Hole Orange Part 3941 Element 4141089 ×3
  • Brick Round 2 x 2 [Grill] Tan Part 92947 Element 4650647 or 4612717 ×4

Plates Round Curved and Dishes 8 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×1
  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 2 spares in the box ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1

Tiles 8 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×8

Minifig Shields, Weapons, & Tools 7 pieces

  • Weapon Scythe / Crescent Blade Serrated with Bar Pearl Gold Part 98141 Element 6270138 or 4646871 ×2
  • Weapon Sword, Big Blade with Bar Pearl Gold Part 98137 Element 6270131 or 4646843 ×4
  • Weapon Sword, Serrated with Snake Skull Hilt and Dark Purple Blade Pattern Tan Part 18957pat0002 Element 6109346 1 spare in the box ×1

Technic Gears 7 pieces

  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×2
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Black Part 18575 Element 6346535 or 6093977 ×2
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 1 spare in the box ×3

Plates Wedged 5 pieces

  • Wedge Plate 6 x 12 Left Black Part 30355 Element 4143180 ×1
  • Wedge Plate 6 x 12 Right Black Part 30356 Element 6394881 or 4143181 ×1
  • Wedge Plate 4 x 4 with 2 x 2 Cutout Dark Bluish Gray Part 43719 Element 6430611 or 6275402 ×1
  • Wedge Plate 4 x 2 Left Light Bluish Gray Part 41770 Element 4211735 ×1
  • Wedge Plate 4 x 2 Right Light Bluish Gray Part 41769 Element 4211732 ×1

Technic Axles 5 pieces

  • Technic Axle 12 Black Part 3708 Element 370826 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×1
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1

Technic Beams 5 pieces

  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×2
  • Technic Beam 1 x 11.5 Double Bent Thick Dark Bluish Gray Part 32009 Element 6271155 or 4210668 ×2
  • Technic Beam 1 x 5 Thick Red Part 32316 Element 4142132 or 4128589 ×1

Bricks Special 4 pieces

  • Brick Special 2 x 2 with Pin and Axle Hole Light Bluish Gray Part 6232 Element 6347704 or 4211529 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Tan Part 30136 Element 4218749 or 4114053 ×2

Technic Bricks 4 pieces

  • Technic Brick 1 x 6 [5 Pin Holes] Dark Bluish Gray Part 3894 Element 4210917 or 3894199 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Light Bluish Gray Part 3701 Element 4211441 ×2

Technic Special 4 pieces

  • Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin Holes Black Part 6585 Element 6169982 or 4500902 ×1
  • Technic Ball Joint with Through Axle Hole Black Part 53585 Element 4286267 ×1
  • Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole Black Part 32124 Element 6280168 or 4114689 ×2

Tiles Round and Curved 4 pieces

  • Tile Round 1 x 1 with Padlock Print Pearl Gold Part 98138pr0014 Element 6287846 or 6039771 1 spare in the box ×2
  • Tile Round 2 x 2 with Bottom Stud Holder Pearl Gold Part 14769 Element 6066345 ×2

Bars, Ladders and Fences 3 pieces

  • Antenna 1 x 4 with Flat Top Light Bluish Gray Part 3957b Element 4211473 ×1
  • Bar 4L (Lightsaber Blade / Wand) Pearl Gold Part 30374 Element 6147169 or 4600267 ×2

Bricks Curved 2 pieces

  • Brick Curved 2 x 2 No Studs - 3 Recessed Side Ports Black Part 44675 Element 6021752 or 4185272 ×1
  • Brick Curved 2 x 2 x 2/3 Sand Green Part 15068 Element 6080431 ×1

Flags, Banners and Signs 2 pieces

  • Flag 5 x 6 Hexagonal with C Clips Dark Brown Part 51000 Element 6064754 ×2

Technic Connectors 2 pieces

  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Red Part 59443 Element 4513174 ×1

Tiles Special 2 pieces

  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×2

Tubes and Hoses 2 pieces

  • Flexible Ribbed Hose 12L Light Bluish Gray Part 14301 Element 6056596 ×2

Wheels and Tyres 2 pieces

  • Wheel Hard Plastic, Treaded with 7 Pin Holes and 6 Small Holes Black Part 11094 Element 6019988 ×1
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Pearl Gold Part 56145 Element 4648531 ×1

Animal / Creature Body Parts 1 piece

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium White Part 87747 Element 6270092 or 4613941 1 spare in the box ×1

Bricks 1 piece

  • Brick 1 x 4 Black Part 3010 Element 301026 ×1

Bricks Wedged 1 piece

  • Brick Wedged, Sloped 4 x 4 Fractured Polygon Top Reddish Brown Part 64867 Element 6248863 or 6172133 ×1

Energy Effects 1 piece

  • Wave / Flame Rounded with Base Rim Trans-Neon Orange Part 6126b Element 6258495 or 6167743 ×1

Minifig Accessories 1 piece

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Dark Brown Part 64644 Element 4538950 ×1

Plants & Trees 1 piece

  • Plant, Round 1 x 1 - 3 Bamboo Leaves Green Part 30176 Element 6270003 or 6248461 ×1

Stickers 1 piece

  • Sticker Sheet for Set 70747-1 [No Color/Any Color] Part 19560 Element 6100354 or 6100352 ×1

Transportation - Sea and Air 1 piece

  • Tail Shuttle Dark Bluish Gray Part 6239 Element 6429075 or 4500562 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 7 x 4 x 2 Round with Handle Trans-Brown Part 92279 Element 6337336 or 6245235 ×1

Minifigures 3 figures

  • Sleven Minifigure, checked as a whole figure ×1
  • Zugu Minifigure, checked as a whole figure ×1
  • Cole in Jungle Robes (Tournament of Elements) 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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