BlockTalk Find Your Set

Free tool

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.

Rock Raiders HQ

Checking

4990 Rock Raiders HQ

392 pieces in 119 part and color combinations, plus 4 minifigures.

LEGO counts 406 pieces. This inventory comes from a separate parts catalog and lists 411, including the 19 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.

Show

Piece checklist

Bricks 57 pieces

  • Brick 1 x 3 Black Part 3622 Element 362226 ×2
  • Brick 2 x 8 Black Part 3007 Element 6037390 or 300726 ×1
  • Brick 1 x 16 Dark Gray Part 2465 Element 4160888 or 4112229 ×2
  • Brick 1 x 6 Dark Gray Part 3009 Element 4114082 or 300927 ×2
  • Brick 12 x 24 Dark Gray Part 30072 Element 4190215 or 4121760 ×1
  • Brick 2 x 2 Dark Gray Part 3003 Element 4110008 or 300327 ×8
  • Brick 2 x 4 Dark Gray Part 3001 Element 4113855 or 300127 ×14
  • Brick 8 x 8 Dark Gray Part 4201 Element 4181131 or 4118868 ×4
  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×5
  • Brick 1 x 2 x 2 with Inside Axle Holder Light Gray Part 3245b Element 4107533 ×4
  • Brick 1 x 6 Light Gray Part 3009 Element 300902 ×5
  • Brick 1 x 8 Light Gray Part 3008 Element 300802 ×1
  • Brick 2 x 6 Light Gray Part 2456 Element 4271438 or 4259892 ×4
  • Brick 1 x 12 Yellow Part 6112 Element 4271082 or 4121533 ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2

Plates 50 pieces

  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×4
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 1 x 3 Dark Gray Part 3623 Element 4121922 or 362327 ×6
  • Plate 1 x 2 Dark Turquoise Part 3023 Element 6213777 or 4218493 ×4
  • Plate 2 x 4 Dark Turquoise Part 3020 Element 6338181 or 4121501 ×2
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×2
  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×3
  • Plate 2 x 3 Light Gray Part 3021 Element 302102 ×9
  • Plate 4 x 4 Light Gray Part 3031 Element 4243813 or 303102 ×1
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×2
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×9
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×4
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×2

Bricks Sloped 43 pieces

  • Brick Sloped 65° 2 x 2 x 2 Smooth without Bottom Tube Black Part 3678a Element 367826 ×10
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Black Part 4460a ×4
  • Brick Sloped 45° 2 x 2 with Black and Yellow Stripes Print Dark Gray Part 3039pr9956 Element 4120168 ×1
  • Brick Sloped 33° 3 x 2 with Louver Print Dark Turquoise Part 3298pr0041 Element 4120166 ×1
  • Brick Sloped 45° 2 x 2 with Black and Yellow Border and Screen Print (Rock Raiders) Dark Turquoise Part 3039pr9957 Element 4120167 ×1
  • Brick Sloped 45° 2 x 4 Dark Turquoise Part 3037 Element 4121762 ×3
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Dark Turquoise Part 3684 Element 4142928 or 4121707 ×12
  • Brick Sloped 45° 2 x 2 Light Gray Part 3039 Element 303902 ×5
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×6

Tiles 34 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×4
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×2
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×6
  • Tile 2 x 2 with Drill Print Black Part 3068bpr0352 Element 4121721 ×2
  • Tile 2 x 2 with Yellow Arrow without Border Print Black Part 3068bpr0021 Element 81152 ×1
  • Tile 1 x 2 with Joystick and Vehicle Control Panel Print Dark Gray Part 3069bpr0090 Element 4120171 ×2
  • Tile 2 x 2 with Groove Dark Turquoise Part 3068b Element 6273853 or 4112916 ×3
  • Tile 1 x 2 with Long Black Arrow Print Yellow Part 3069bpr0035 Element 81148 ×4
  • Tile 1 x 4 with Black Diagonal Stripes Print Yellow Part 2431pr0017 Element 4119091 ×10

Bricks Round and Cones 23 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Neon Green Part 3941 Element 6273157 or 611649 ×8
  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×14
  • Cone 1 x 1 [No Top Groove] Trans-Neon Orange Part 4589 Element 4529918 or 618847 ×1

Bricks Special 21 pieces

  • Brick Special 1 x 2 with Handle Dark Gray Part 30236 Element 4121761 ×4
  • Brick Special 2 x 4 with Pins Dark Gray Part 6249 Element 4143669 or 4100411 ×1
  • Brick Special 1 x 4 with Groove Light Gray Part 2653 Element 4121764 or 265302 ×10
  • Brick Special 2 x 2 with Pin and Axle Hole Light Gray Part 6232 Element 623202 ×4
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Yellow Part 30237a ×2

Supports, Girders and Cranes 20 pieces

  • Crane Arm Centre, 16 x 2 x 1 Black Part 2351 Element 235126 ×1
  • Support 2 x 2 x 11 Solid Pillar Black Part 75347 Element 4541890 or 4215613 ×2
  • Support 4 x 4 x 5 Stanchion, Standard Studs Black Part 2680b Element 4125166 ×8
  • Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Black Part 3940b Element 394026 ×4
  • Crane Arm Outside, Wide, 15 Studs, End Notch Dark Gray Part 2350b Element 4124003 ×1
  • Support 2 x 4 x 5 Stanchion Inclined [5mm wide posts] Light Gray Part 4476b Element 4142126 or 447602 ×4

Tiles Special 20 pieces

  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×6
  • Tile Special 2 x 2 with Top Pin Dark Gray Part 2460 Element 4121763 or 246027 ×1
  • Tile Special 1 x 2 with Handle Light Gray Part 2432 Element 243202 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×11

Bars, Ladders and Fences 17 pieces

  • Plate Special 1 x 6 with Train Wagon End Fence Dark Gray Part 6583 Element 4109788 or 658327 ×4
  • Bar 1 x 3 [Clip / Anti-Stud] Light Gray Part 4735 Element 4141579 or 473552 ×2
  • Bar 1 x 4 x 2 with Studs Light Gray Part 4083 Element 408302 ×3
  • Antenna 1 x 4 with Rounded Top Trans-Neon Green Part 3957a ×1
  • Bar 1 x 6 [Closed Studs] Yellow Part 6140 Element 4597281 or 4212408 ×2
  • Lever Small Base with Black Lever Yellow Part 298c02 Element 74156 1 spare in the box ×5

Plates Round Curved and Dishes 16 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×10

Plates Special 16 pieces

  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×4
  • Plate Special 1 x 4 Offset with Bar Holes Black Part 4590 Element 6002559 or 4278029 ×1
  • Plate Special 6 x 6 x 2/3 Cross with Dome Dark Gray Part 30303 Element 4120146 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Turquoise Part 2540 Element 4166037 or 4140590 ×3
  • Plate Special 2 x 2 with Wheel Holder Light Gray Part 4488 Element 448802 ×4
  • Plate Special 1 x 2 with Ladder Yellow Part 4175 Element 6252195 or 6186664 ×2

Minifig Shields, Weapons, & Tools 10 pieces

  • Tool Chainsaw / Drill Body Black Part 2516 Element 6562846 or 4514341 ×1
  • Tool Circular Saw Dark Gray Part 30194 Element 4113834 ×1
  • Tool Drill, Electric Dark Gray Part 55297 ×1
  • Tool Hammer Cross Pein [6-Rib Handle] Dark Gray Part 55295 ×1
  • Tool Jackhammer / Motor Hammer Dark Gray Part 30228 Element 4113837 ×1
  • Tool Oil Can [Smooth Handle] Dark Gray Part 55296 ×1
  • Tool Pickaxe Dark Gray Part 3841 Element 384127 ×1
  • Tool Screwdriver with Narrow Head [6-Rib Handle] Dark Gray Part 55298 ×1
  • Tool Wrench / Spanner Open End [6-Rib Handle] Dark Gray Part 55299 ×1
  • Tool Wrench / Spanner, Box [6-Rib Handle] Dark Gray Part 55300 ×1

Wheels and Tyres 8 pieces

  • Tyre 21 x 12 with Offset Tread Small Wide Black Part 6015 Element 601526 ×4
  • Wheel 11 x 12 with Hole Round for Wheels Holder Pin Yellow Part 6014a Element 601424 ×4

Technic Bricks 7 pieces

  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×1
  • Technic Brick 1 x 4 [3 Pin Holes] Light Gray Part 3701 Element 370102 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Light Gray Part 3894 Element 389402 ×4

Transportation - Land 7 pieces

  • Seat / Chair 2 x 2 Black Part 4079 ×4
  • Tipper Bed Small, 3 x 4 Anti-studs Light Gray Part 2512 Element 4116784 ×2
  • Steering Stand 1 x 2 with Black Steering Wheel Yellow Part 3829c01 Element 9553 ×1

Rock 6 pieces

  • Rock Boulder 4 x 4, Bottom Brown Part 30294 Element 4164156 or 4164088 ×2
  • Rock Boulder 4 x 4, Top Brown Part 30293 Element 4168208 or 4142848 ×2
  • Rock 1 x 1 Crystal 5 Point Trans-Neon Green Part 30385 Element 6170290 or 4540417 ×2

Flags, Banners and Signs 5 pieces

  • Road Sign Clip-on 2 x 2 Square with Black Arrow Print Yellow Part 30258pr0008 Element 4116692 ×5

Hinges, Arms and Turntables 5 pieces

  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Turntable 4 x 4 Square Base with Top, Complete Assembly Black Part 3403c01 Element 4221663 or 4143677 ×3
  • Hinge Brick 2 x 2 Top Plate Thin Dark Turquoise Part 6134 Element 6488169 or 4121630 ×1

Panels 5 pieces

  • Panel 1 x 2 x 1 [Square Corners] Dark Turquoise Part 4865a Element 4121532 ×5

Containers 4 pieces

  • Box 2 x 2 x 2 Door with Slot Trans-Neon Green Part 4346 Element 4107105 ×2
  • Box 2 x 2 x 2 [Hollow Studs] Trans-Neon Green Part 4345b Element 4291632 or 4107506 ×2

Tubes and Hoses 4 pieces

  • Flexible Hose 8.5L with Tabbed Ends Black (Ends different color than Tube) Yellow Part 73590c02b ×4

Technic Axles 3 pieces

  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×3

Minifig Accessories 2 pieces

  • Equipment Shovel [Rounded Handle End] Dark Gray Part 3837 Element 383727 ×1
  • Equipment Space Binoculars / Scanner / Electrobinoculars Dark Gray Part 30304 Element 4120145 ×1

Plates Wedged 2 pieces

  • Wedge Plate 8 x 8 with 3 x 4 Cutout Black Part 6104 Element 610426 ×1
  • Wedge Plate 3 x 4 without Stud Notches Yellow Part 4859 Element 4181033 ×1

Technic Steering, Suspension and Engine 2 pieces

  • Technic Engine Crankshaft Center Light Gray Part 2854 Element 285402 ×2

Animals / Creatures 1 piece

  • Creature, Rock Monster [Complete Assembly] Brown Part 30305c01 Element 4124115 or 4121771 ×1

Baseplates 1 piece

  • Baseplate Raised 32 x 48 x 6 with 4 Corner Pits and Dark Gray Rock Print Light Gray Part 30271pr0004 Element 4121777 ×1

Bricks Wedged 1 piece

  • Brick Wedged 3 x 4 [No Stud Notches] Dark Gray Part 2399 Element 4112038 or 239927 ×1

Electronics 1 piece

  • Light Unit, Laser [Complete Assembly] Dark Gray Part 30346c01 Element 4140570 ×1

String, Bands and Reels 1 piece

  • Chain 17L [21 Links] Brown Part 30104 Element 4159874 or 4121706 ×1

Minifigures 4 figures

  • Docs Minifigure, checked as a whole figure ×1
  • Bandit, Black Hard Hat Minifigure, checked as a whole figure ×1
  • Jet, Trans-Neon Green Visor Minifigure, checked as a whole figure ×1
  • Sparks 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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy