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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.

Aircraft

Checking

8434 Aircraft

445 pieces in 89 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

Black 246 pieces

  • Cone 2 x 2 x 2, Open Stud Black Part 3942c Element 6092664 or 6022160 ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×9
  • Technic Axle 4 Black Part 3705 Element 370526 ×3
  • Technic Axle 5.5 with Stop [Flat Short End] Black Part 32209 Element 4124045 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×4
  • Technic Axle 8 Black Part 3707 Element 370726 ×4
  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×11
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×3
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×14
  • 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 ×2
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×10
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×4
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×4
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×8
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×11
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×6
  • Technic Beam 1 x 4 Thin Black Part 32449 Element 6327548 or 4142236 ×6
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×7
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×4
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 ×3
  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×2
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 ×2
  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×7
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×38
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×44
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Black Part 41669 Element 4540065 or 4177441 ×4
  • Technic Wedge Belt Wheel Tire Black Part 2815 Element 6028041 or 281526 ×2
  • Technic Wedge Belt Wheel [aka Pulley] Black Part 4185 Element 6323668 or 6192130 ×8
  • Tyre 17.5 x 6 with Shallow Staggered Treads Black Part 51011 Element 4515290 or 4239237 ×6

Light Bluish Gray 108 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×22
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×11
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×8
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Bluish Gray Part 6538b Element 4211543 ×2
  • Technic Axle Connector with Axle Hole Light Bluish Gray Part 32039 Element 4211553 ×6
  • Technic Axle and Pin Connector Angled #2 - 180° Light Bluish Gray Part 32034 Element 6346487 or 4211567 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Light Bluish Gray Part 32016 Element 6261387 or 4211552 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×15
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Bluish Gray Part 32123a 1 spare in the box ×2
  • Technic Gear 12 Tooth Bevel Light Bluish Gray Part 6589 Element 6589194 or 4565450 ×2
  • Technic Gear 12 Tooth Double Bevel Light Bluish Gray Part 32270 Element 32270194 or 4211634 ×3
  • Technic Gear 20 Tooth Bevel Light Bluish Gray Part 32198 Element 6359714 or 6031956 ×2
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Light Bluish Gray Part 32269 Element 32269194 or 4211635 ×2
  • Technic Gear 8 Tooth Light Bluish Gray Part 3647 Element 4211432 or 3647194 ×2
  • Technic Gear Timing Wheel 8 Tooth Light Bluish Gray Part 32060 Element 4211638 ×2
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×2
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Bluish Gray Part 32054 Element 4211865 ×2
  • Technic Pin Long without Friction Ridges - Single Slot Light Bluish Gray Part 32556a Element 4211709 ×8
  • Technic Worm Gear Light Bluish Gray Part 4716 Element 4211510 ×1
  • Tile 1 x 2 with Red 82, Yellow and White Gauges Print Light Bluish Gray Part 3069bpr0101 Element 4227776 ×1
  • Tile 1 x 2 with Stylised Computer Console Print Light Bluish Gray Part 3069bpr0086 Element 4212363 ×1
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×6

Pearl Dark Gray 34 pieces

  • Technic Beam 1 x 15 Thick Pearl Dark Gray Part 32278 Element 4227469 ×4
  • Technic Beam 1 x 2 Thick Pearl Dark Gray Part 43857 Element 4227476 ×3
  • Technic Beam 1 x 7 Thick Pearl Dark Gray Part 32524 Element 4495929 or 4227470 ×2
  • Technic Beam 2 x 4 L-Shape Thick Pearl Dark Gray Part 32140 Element 4177982 ×10
  • Technic Beam 3 x 5 L-Shape Thick Pearl Dark Gray Part 32526 Element 4227485 ×1
  • Technic Driving Ring Extension, 4 Ridges Pearl Dark Gray Part 32187 Element 4278755 or 4227959 ×2
  • Technic Panel Fairing # 7 Small Long, Large Hole, Side A Pearl Dark Gray Part 32534 Element 4163376 ×4
  • Technic Panel Fairing # 8 Small Long, Large Hole, Side B Pearl Dark Gray Part 32535 Element 4163377 ×4
  • Technic Panel Fairing #20 Large Long, Small Hole, Side A Pearl Dark Gray Part 44350 Element 4277116 or 4195435 ×2
  • Technic Panel Fairing #21 Large Long, Small Hole, Side B Pearl Dark Gray Part 44351 Element 4277093 or 4195436 ×2

Blue 20 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×20

Pearl Light Gray 14 pieces

  • Axle Hose, Soft 12L Pearl Light Gray Part 32200 Element 4141969 ×2
  • Axle Hose, Soft 19L Pearl Light Gray Part 32235 Element 4141970 ×2
  • Axle Hose, Soft 7L Pearl Light Gray Part 32580 Element 4287618 or 4163389 ×2
  • Large Figure Weapon Blade, Air Katana Pearl Light Gray Part 44033 Element 4178663 ×6
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Pearl Light Gray Part 41669 Element 4284480 or 4177440 ×2

Red 9 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×2
  • Technic Axle Connector with Axle Hole Red Part 32039 Element 4118897 ×1
  • Technic Axle and Pin Connector Perpendicular Red Part 6536 Element 6261373 or 4188298 ×3
  • Technic Beam 1 x 4 Thin with Stud Connector Red Part 2825 Element 6392956 or 4227649 ×2
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Red Part 3648b Element 4142825 ×1

Trans-Red 5 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] Trans-Red Part 6538b Element 4163625 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Red Part 41669 Element 4163567 ×1

Trans-Yellow 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×4

Trans-Green 3 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×2
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Green Part 41669 Element 4163576 ×1

Tan 1 piece

  • Tile 1 x 2 with Vehicle Gauges Print Tan Part 3069bpr0051 Element 4113975 ×1

Trans-Clear 1 piece

  • Technic Shock Absorber 10L, Damped, Normal Spring Trans-Clear Part 76320c01 Element 4142095 ×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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