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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.

Supersonic RC

Checking

8366 Supersonic RC

429 pieces in 92 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.

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Piece checklist

Technic Pins 157 pieces

  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×1
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×29
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×64
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×23
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 ×7
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 ×3
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Gray Part 32054 Element 4195303 ×28
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Technic Beams 65 pieces

  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×4
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×4
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×4
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×8
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×2
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 ×2
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 ×3
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×4
  • Technic Beam 3 x 3 L-Shape Thin Black Part 32056 Element 6271810 or 4112287 ×4
  • Technic Beam 3 x 3 L-Shape with Quarter Ellipse Thin Black Part 32249 Element 6336619 or 4505842 ×4
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×6
  • Technic Beam 1 x 15 Thick Light Gray Part 32278 Element 4172457 ×1
  • Technic Beam 1 x 2 Thick Light Gray Part 43857 Element 4195272 ×6
  • Technic Beam 1 x 2 Thin Light Gray Part 41677 Element 4162783 ×4
  • Technic Beam 1 x 3 Thick Light Gray Part 32523 Element 4142599 ×2
  • Technic Beam 1 x 5 Thick Light Gray Part 32316 Element 4142140 or 4141494 ×2
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Light Gray Part 32348 Element 4143193 or 4140579 ×1
  • Technic Beam 1 x 7 Thick Light Gray Part 32524 Element 4143020 ×1
  • Technic Beam 1 x 9 Thick Light Gray Part 40490 Element 4195406 ×1
  • Technic Beam 2 x 4 L-Shape Thick Light Gray Part 32140 Element 4121620 ×2

Technic Connectors 60 pieces

  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×2
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×7
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 ×8
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×2
  • Technic Axle and Pin Connector Perpendicular Double Split Black Part 41678 Element 4162857 ×10
  • Technic Pin Connector Perpendicular Long Black Part 32557 Element 4143466 ×4
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Gray Part 6553 Element 655302 ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 ×5
  • Technic Axle and Pin Connector Angled #4 - 135° Light Gray Part 32192 Element 4154762 ×8
  • Technic Axle and Pin Connector Angled #5 - 112.5° Light Gray Part 32015 Element 4106378 ×4
  • Technic Axle and Pin Connector Angled #6 - 90° Light Gray Part 32014 Element 4143353 or 4106377 ×2
  • Technic Axle and Pin Connector Perpendicular Double Light Gray Part 32291 Element 4140339 ×6

Technic Axles 51 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×10
  • Technic Axle 4 Black Part 3705 Element 370526 ×4
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Axle 8 Black Part 3707 Element 370726 ×3
  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×14
  • Technic Axle 3 Light Gray Part 4519 Element 4186007 ×6
  • Technic Axle 5 Light Gray Part 32073 Element 4141482 ×9
  • Technic Axle 7 Light Gray Part 44294 Element 4183835 ×3

Technic Bushes 19 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×10
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a ×9

Technic Panels 16 pieces

  • Technic Panel Fairing # 5 Small Short, Large Hole, Side A Light Gray Part 32527 Element 4199351 or 4156749 ×1
  • Technic Panel Fairing # 6 Small Short, Large Hole, Side B Light Gray Part 32528 Element 4199347 or 4154860 ×1
  • Technic Panel Fairing # 7 Small Long, Large Hole, Side A Light Gray Part 32534 Element 4195279 ×1
  • Technic Panel Fairing # 8 Small Long, Large Hole, Side B Light Gray Part 32535 Element 4195281 ×1
  • Technic Panel Fairing # 1 Large Short, Large Holes, Side A Pearl Dark Gray Part 32190 Element 4193551 ×1
  • Technic Panel Fairing # 2 Large Short, Large Holes, Side B Pearl Dark Gray Part 32191 Element 4193552 ×1
  • Technic Panel Fairing # 3 Large Long, Large Holes, Side A Pearl Dark Gray Part 32188 Element 4174704 ×1
  • Technic Panel Fairing # 4 Large Long, Large Holes, Side B Pearl Dark Gray Part 32189 Element 4174705 ×1
  • Technic Panel Fairing # 5 Small Short, Large Hole, Side A Pearl Dark Gray Part 32527 Element 4163378 ×1
  • Technic Panel Fairing # 6 Small Short, Large Hole, Side B Pearl Dark Gray Part 32528 Element 4163379 ×1
  • Technic Panel Fairing # 7 Small Long, Large Hole, Side A Pearl Dark Gray Part 32534 Element 4163376 ×2
  • Technic Panel Fairing # 8 Small Long, Large Hole, Side B Pearl Dark Gray Part 32535 Element 4163377 ×2
  • Technic Panel Fairing #20 Large Long, Small Hole, Side A Pearl Dark Gray Part 44350 Element 4277116 or 4195435 ×1
  • Technic Panel Fairing #21 Large Long, Small Hole, Side B Pearl Dark Gray Part 44351 Element 4277093 or 4195436 ×1

Wheels and Tyres 14 pieces

  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×2
  • Tyre 68.8 x 36 ZR Black Part 44771 Element 6062225 or 4614801 ×4
  • Wheel 68.8 x 36 ZR Solid Smooth Black Part 44777 Element 4198419 ×2
  • Technic Wedge Belt Wheel [aka Pulley] Light Gray Part 4185 Element 4100502 or 418502 ×2
  • Wheel 56 x 34 Technic Racing Medium with 3 Pin Holes Light Gray Part 44772 Element 4193457 ×4

Tubes and Hoses 11 pieces

  • Axle Hose, Soft 11L Pearl Light Gray Part 32199 Element 4141973 ×2
  • Axle Hose, Soft 14L Pearl Light Gray Part 32201 Element 4141974 ×2
  • Axle Hose, Soft 19L Pearl Light Gray Part 32235 Element 4141970 ×4
  • Hose, Ribbed 7mm D. 15L / 12.0cm Pearl Light Gray Part 78c15 Element 4501125 ×1
  • Hose, Ribbed 7mm D. 7L / 5.6cm Pearl Light Gray Part 78c07 Element 4495203 or 4141522 ×2

Technic Steering, Suspension and Engine 10 pieces

  • Steering Unit [RC Vehicles] Black Part 6282c01 Element 4177240 ×1
  • Technic Steering Arm [RC Vehicles] Black Part 41894 Element 4175719 ×2
  • Technic Wheel Hub 3 Pin Black Part 32496 Element 4579735 or 4184101 ×2
  • Technic Wheel Hub 3 Pin Holder (RC Vehicles) Black Part 41895 Element 4175722 ×2
  • Technic Link 1 x 6 with Stoppers Dark Gray Part 32005b Element 4100406 ×2
  • Technic Steering Wheel Small (3 Studs Diameter) Light Gray Part 2819 Element 4113032 or 281902 ×1

Electronics 8 pieces

  • Antenna (RC Receiver) with Yellow Tip Black Part 71845 Element 4182469 or 4116831 ×2
  • Battery Box / Receiver Unit, RC Race Buggy, with Auxiliary Output Black Part 6272c01 Element 4177227 ×1
  • Control Unit / Remote, RC [RC Vehicles] Black Part 5282 Element 4224152 or 4177237 ×1
  • Motor, RC Race Buggy Black Part 42908 Element 4177239 ×2
  • Wire with Brick 2 x 2 x 2/3 Pair, 15L Black Part 5306bc015 Element 75565 ×2

Technic Special 8 pieces

  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Pearl Light Gray Part 41669 Element 4284480 or 4177440 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Neon Green Part 41669 Element 4163577 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Red Part 41669 Element 4163567 ×4

Bars, Ladders and Fences 4 pieces

  • Bar 4L (Lightsaber Blade / Wand) Trans-Neon Green Part 30374 Element 6507881 or 6170186 ×4

Plates Round Curved and Dishes 3 pieces

  • Plate Round 1 x 1 with Solid Stud Light Gray Part 6141 Element 614102 ×3

Large Buildable Figures 2 pieces

  • Large Figure Shield 5 x 5 with Dual Round Prongs Pearl Light Gray Part 41663 Element 4531087 or 4199348 ×2

Stickers 1 piece

  • Sticker Sheet for Set 8366-1 [No Color/Any Color] Part 46272 Element 4195295 ×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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