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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.

Volcano Exploration Truck

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60121 Volcano Exploration Truck

164 pieces in 79 part and color combinations, plus 2 minifigures.

The piece count includes the 11 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 Special 29 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Black Part 99780 Element 6020193 ×2
  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×2
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×4
  • Plate Special 1 x 2, Top Clip [Split] Black Part 92280 Element 4598528 ×4
  • Bracket 1 x 2 - 2 x 4 Dark Bluish Gray Part 93274 Element 6118832 or 4648067 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Dark Bluish Gray Part 61252 Element 6360111 or 4579354 ×4
  • Plate Special 1 x 2 with Door Rail Dark Bluish Gray Part 32028 Element 4543086 or 4541289 ×4
  • Plate Special 2 x 4 with Pins Dark Bluish Gray Part 30157 Element 4509884 or 4210682 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Dark Bluish Gray Part 3176 Element 4225733 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Lime Part 60897 Element 6533509 or 6151734 ×4
  • Plate Special 3 x 2 with Rounded End, Hole Yellow Part 3176 Element 4188313 or 4141738 ×1

Plates 22 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×4
  • Plate 1 x 8 Black Part 3460 Element 346026 ×2
  • Plate 2 x 12 Black Part 2445 Element 244526 ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×3
  • Plate 4 x 4 Light Bluish Gray Part 3031 Element 4243797 or 4211403 ×2
  • Plate 1 x 6 Lime Part 3666 Element 4534665 or 4529160 ×1
  • Plate 4 x 4 Lime Part 3031 Element 4504850 or 4160080 ×1
  • Plate 6 x 6 Lime Part 3958 Element 4525858 ×1
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×3

Bars, Ladders and Fences 17 pieces

  • Antenna 8H Whip Black Part 2569 Element 6265148 or 6164379 ×1
  • Bar 1 x 6 [Closed Studs] Black Part 6140 Element 6415609 or 614026 ×1
  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Black Part 48729b Element 6278152 or 6037347 1 spare in the box ×4
  • Bar 3L Black Part 87994 Element 6185316 or 6093525 1 spare in the box ×4
  • Bar Holder with Hole and Bar Handle Black Part 23443 Element 6321194 or 6143318 ×4
  • Lattice 3 x 6 Module with Studs Black Part 23444 Element 6172984 or 6138603 ×1
  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Orange Part 58176 Element 6507868 or 6171764 ×2

Bricks Sloped 17 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Dark Bluish Gray Part 4287b ×2
  • Brick Sloped Inverted 45° 6 x 4 Double with 4 x 4 Recessed and 3 Holes Dark Bluish Gray Part 60219 Element 4549999 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 1 spare in the box ×2
  • Brick Sloped 65° 2 x 1 x 2 Lime Part 60481 Element 6534880 or 6146962 ×2
  • Brick Sloped Inverted 45° 2 x 1 Lime Part 3665 Element 6030276 or 4164028 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Lime Part 3660 Element 4529679 or 4212708 ×6

Tiles Round and Curved 8 pieces

  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 1 spare in the box ×4
  • Tile Round 1 x 1 Trans-Yellow Part 98138 Element 6514193 or 6274740 1 spare in the box ×4

Wheels and Tyres 8 pieces

  • Tyre 37 x 18 R Balloon Black Part 56891 Element 6589426 or 6518543 ×4
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×4

Bricks 7 pieces

  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick 1 x 10 Dark Bluish Gray Part 6111 Element 4211107 ×2
  • Brick 1 x 4 Lime Part 3010 Element 4234716 or 4122449 ×3
  • Brick 2 x 2 Tan Part 3003 Element 4114306 or 300305 ×1

Bricks Curved 7 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Lime Part 11477 Element 6069006 ×6
  • Brick Curved 2 x 2 x 2/3 with Compass Print Lime Part 15068pr0009 Element 6152204 ×1

Tiles 7 pieces

  • Tile 2 x 4 with Groove Black Part 87079 Element 4560182 ×1
  • Tile 2 x 2 with Groove Blue Part 3068b Element 306823 ×2
  • Tile 1 x 2 with Groove Lime Part 3069b Element 4500125 or 4164025 ×4

Technic Connectors 6 pieces

  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Black Part 15100 Element 6073231 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Yellow Part 59443 Element 4519010 ×2
  • Technic Axle and Pin Connector Angled #1 Yellow Part 32013 Element 6329889 or 4107066 ×3

Transportation - Land 5 pieces

  • Steering Stand 1 x 2 with Black Steering Wheel Blue Part 3829c01 Element 9566 ×1
  • Wheel Arch, Mudguard 4 x 2 1/2 x 1 Dark Bluish Gray Part 98282 Element 6170503 or 4646522 ×4

Tiles Special 4 pieces

  • Tile Special Round 2 x 2 - Thick Lifting Ring Black Part 74698 Element 6010831 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×1
  • Tile Special 1 x 1 with Clip with Rounded Edges Light Bluish Gray Part 15712 Element 6308012 or 6071229 ×2

Rock 3 pieces

  • Rock 1 x 1 Crystal 5 Point Trans-Dark Blue Part 30385 Element 6507864 or 6236962 ×1
  • Rock / Boulder, Vertical Half Trans-Orange Part 23447 Element 6159464 ×2

Technic Axles 3 pieces

  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×2

Technic Pins 3 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2

Bricks Special 2 pieces

  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Lime Part 60475b Element 6146963 ×2

Hinges, Arms and Turntables 2 pieces

  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×1
  • Hinge 1 x 2 Locking with 2 Fingers and Towball Socket, 9 Teeth Yellow Part 30396 Element 6146964 or 4163290 ×1

Minifig Accessories 2 pieces

  • Equipment Metal Detector, no Stud on Search Head Black Part 93106 Element 6168638 or 4637372 ×1
  • Equipment Radio [Extended Handle, Expanded Speaker Grille] Black Part 19220 Element 6170545 or 6100054 ×1

Panels 2 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Light Blue Part 87552 Element 6581813 or 6253230 ×2

Technic Gears 2 pieces

  • Technic Driving Ring Extension, 4 Ridges Light Bluish Gray Part 32187 Element 4278756 or 4209329 ×1
  • Technic Worm Gear Light Bluish Gray Part 4716 Element 4211510 ×1

Bricks Round and Cones 1 piece

  • Cone 1 x 1 [Top Groove] Light Bluish Gray Part 59900 Element 4529241 ×1

Bricks Wedged 1 piece

  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Lime Part 52031 Element 6146890 or 4500755 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Tool Jackhammer / Motor Hammer Dark Bluish Gray Part 30228 Element 4261117 or 4211083 ×1

Stickers 1 piece

  • Sticker Sheet for Set 60121-1 [No Color/Any Color] Part 24526 Element 6133180 or 6133169 ×1

Supports, Girders and Cranes 1 piece

  • Hook with Towball Dark Bluish Gray Part 30395 Element 30395199 or 6347464 ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×1

Technic Bushes 1 piece

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×1

Windscreens and Fuselage 1 piece

  • Windscreen 3 x 6 x 2 Trans-Light Blue Part 92583 Element 6503219 or 6255920 ×1

Minifigures 2 figures

  • Volcano Explorer, Woman, Olive Green Jumpsuit with Straps, White Hard Hat with Visor, Breathing Apparatus, Airtanks Minifigure, checked as a whole figure ×1
  • Volcano Explorer, Man, Olive Green Shirt, Sand Blue Legs, Dark Tan Cap, Beard 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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