BlockTalk Find Your Set

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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.

Black Hawk / Sky Stormer

Checking

8425 Black Hawk / Sky Stormer

469 pieces in 98 part and color combinations.

LEGO counts 465 pieces. This inventory comes from a separate parts catalog and lists 469; 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.

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Piece checklist

Plates 62 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×7
  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×20
  • Plate 1 x 6 Black Part 3666 Element 366626 ×4
  • Plate 2 x 2 Black Part 3022 Element 302226 ×4
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×6
  • Plate 1 x 1 Trans-Green Part 3024 Element 6513967 or 6252046 ×1
  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 ×1
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×2
  • Plate 1 x 10 Yellow Part 4477 Element 6079138 or 6078095 ×4
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×5
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×4
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×2

Technic Pins 60 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×7
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×14
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×1
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 ×8
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×8
  • Technic Axle Towball Light Gray Part 2736 Element 273602 ×2
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 ×20

Technic Axles 58 pieces

  • Technic Axle 10 Black Part 3737 Element 373726 ×8
  • Technic Axle 12 Black Part 3708 Element 370826 ×5
  • Technic Axle 2 Black Part 3704 Element 370426 ×9
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×11
  • Technic Axle 4 Black Part 3705 Element 370526 ×13
  • Technic Axle 6 Black Part 3706 Element 370626 ×5
  • Technic Axle 8 Black Part 3707 Element 370726 ×5
  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×2

Technic Bricks 54 pieces

  • Technic Brick 1 x 10 [9 Pin Holes] Black Part 2730 Element 273026 ×1
  • Technic Brick 1 x 12 [11 Pin Holes] Black Part 3895 Element 389526 ×2
  • Technic Brick 1 x 16 [15 Pin Holes] Black Part 3703 Element 370326 ×10
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×14
  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×4
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×4
  • Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 ×6
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×3
  • Technic Slope Long 1 x 6 with 3 Pin Holes Black Part 2744 Element 6311889 or 274426 ×8
  • Technic Brick 1 x 4 [3 Pin Holes] Light Gray Part 3701 Element 370102 ×2

Technic Beams 49 pieces

  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×6
  • Technic Beam 1 x 4 Thin with Stud Connector Black Part 2825 Element 6331570 or 4107136 ×8
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black Part 6629 Element 6279881 or 4119800 ×1
  • Technic Beam Triangle Thin [Type I] Black Part 2905 Element 4142543 or 290526 ×6
  • Technic Beam 1 x 3 Thin Light Gray Part 6632 Element 4107825 ×8
  • Technic Beam 1 x 4 Thin with Stud Connector Light Gray Part 2825 Element 4107133 or 282502 ×8
  • Technic Beam 1 x 3 Thin Yellow Part 6632 Element 6344174 or 4107823 ×12

Technic Bushes 40 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×4
  • Technic Bush 1/2 Toothed Type II [X Opening] Light Gray Part 4265b Element 4100501 or 657702 ×36

Technic Connectors 26 pieces

  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Gray Part 6553 Element 655302 ×6
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 ×7
  • Technic Axle and Pin Connector Light Gray Part 3651 Element 4105243 or 365102 ×3
  • Technic Axle and Pin Connector Perpendicular Light Gray Part 6536 Element 4173667 or 653602 ×10

Technic Gears 23 pieces

  • Technic Gear 12 Tooth Bevel Light Gray Part 6589 Element 658902 ×13
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Gray Part 4019 Element 4107176 or 401902 ×2
  • Technic Gear 24 Tooth Crown with Reinforcements [New Style] Light Gray Part 3650c Element 365002 ×2
  • Technic Gear 24 Tooth [Old Style - Three axle holes] Light Gray Part 3648a ×1
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 ×5

Bricks Sloped 19 pieces

  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×4
  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×1
  • Brick Sloped 65° 2 x 2 x 2 Smooth without Bottom Tube Black Part 3678a Element 367826 ×2
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Black Part 4287a ×4
  • Brick Sloped Inverted 45° 2 x 1 Light Gray Part 3665 Element 366502 ×4

Hinges, Arms and Turntables 12 pieces

  • Arm Piece with Pin, 2 Fingers Black Part 6048a Element 604826 ×1
  • Arm Piece with Pin, 3 Fingers and Outside Thread Grooves Black Part 6217b ×1
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Yellow Part 73983 Element 6102768 or 4205196 ×4

Plates Special 12 pieces

  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×2
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×9
  • Technic Plate 2 x 4 [3 Holes] Yellow Part 3709 Element 370924 ×1

Wheels and Tyres 8 pieces

  • Tyre Offset Tread 24 x 8 Black Part 3483 Element 4501048 or 348326 ×4
  • Wheel with Split Axle hole Yellow Part 3482 Element 348224 ×4

Plates Round Curved and Dishes 7 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×4

Technic Special 6 pieces

  • Technic Plate 1 x 5 with Toothed Ends, 2 Studs and Center Axle Hole Black Part 2711 Element 4279391 or 4195722 ×2
  • Technic Plate 1 x 8 with Toothed Ends Black Part 4442 Element 444276 or 444226 ×2
  • Technic Plate 1 x 5 with Toothed Ends, 2 Studs and Center Axle Hole Light Gray Part 2711 Element 4195723 or 271152 ×2

Transportation - Sea and Air 6 pieces

  • Propeller 2 Blade 9 Diameter Black Part 2952 Element 4528097 or 4189281 ×4
  • Propeller 3 Blade 3 Diameter with Axle Cross Yellow Part 6041 Element 604124 ×2

Plates Wedged 5 pieces

  • Wedge Plate 7 x 6 Boat Bow without Stud Notches Black Part 2625 ×1
  • Wedge Plate 8 x 4 Wing Left Black Part 3933 Element 4189089 or 393326 ×1
  • Wedge Plate 8 x 4 Wing Right with Stud Notch Black Part 3934 Element 4189090 or 393426 ×1
  • Wedge Plate 3 x 4 without Stud Notches Yellow Part 4859 Element 4181033 ×2

Tiles 5 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1

Tubes and Hoses 5 pieces

  • Hose Rigid 3mm D. 4L / 3.2cm Dark Gray Part 75c04 Element 4118605 ×5

Bricks Wedged 3 pieces

  • Brick Wedged, Sloped Inverted 6 x 4 with 2 Stud Connections Black Part 4856a Element 4585334 or 4226506 ×1
  • Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] Light Gray Part 4855 Element 485502 ×2

Tiles Special 3 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Light Gray Part 2555 Element 255502 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Light Gray Part 2412b Element 241202 ×2

Bricks Round and Cones 2 pieces

  • Cone 2 x 2 x 2, Open Stud Yellow Part 3942c Element 6055404 or 6022159 ×2

Technic Steering, Suspension and Engine 2 pieces

  • Technic Engine Crankshaft Light Gray Part 2853 Element 4119475 or 285302 ×2

Stickers 1 piece

  • Sticker Sheet for Set 8425-1 [No Color/Any Color] Part stickerupn0046 Element 4100330 ×1

String, Bands and Reels 1 piece

  • Technic Rubber Belt Medium [24mm ID] [Round Cross Section] Red Part 85544 Element 4544145 or 4544143 ×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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