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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.

Chassis Pack

Checking

5222 Chassis Pack

137 pieces in 49 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 39 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×6
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×18
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 1 spare in the box ×2
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×6
  • Technic Pin Double with Axle Hole Yellow Part 32138 Element 4130596 or 4119438 ×1
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Yellow Part 32054 Element 4140805 or 4121613 ×6

Technic Bushes 18 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×3
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a 1 spare in the box ×15

Technic Axles 17 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×4
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×5
  • Technic Axle 5 Black Part 32073 Element 4114740 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×2

Technic Beams 14 pieces

  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×2
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×2
  • Technic Beam 3 x 3 L-Shape Thin Black Part 32056 Element 6271810 or 4112287 ×2
  • Technic Beam 1 x 3 Thick Light Gray Part 32523 Element 4142599 ×2
  • Technic Beam 1 x 3 Thin Light Gray Part 6632 Element 4107825 ×2
  • Technic Beam 2 x 4 L-Shape Thick Light Gray Part 32140 Element 4121620 ×2
  • Technic Beam Triangle Thin [Type I] Light Gray Part 2905 Element 4142539 or 290502 ×2

Technic Connectors 13 pieces

  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with Pin Hole Black Part 32068 Element 6273318 or 4114670 ×3
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 ×1
  • Technic Axle and Pin Connector Perpendicular Light Gray Part 6536 Element 4173667 or 653602 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Gray Part 32184 Element 4124443 ×1
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Light Gray Part 32530 Element 4142602 ×2
  • Technic Axle and Pin Connector Perpendicular Double Purple Part 32291 Element 4140523 ×2

Technic Bricks 10 pieces

  • Technic Brick 1 x 10 [9 Pin Holes] Black Part 2730 Element 273026 ×2
  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×2
  • Technic Brick 1 x 16 [15 Pin Holes] Light Gray Part 3703 Element 370302 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Light Gray Part 3894 Element 389402 ×2

Wheels and Tyres 8 pieces

  • Tyre 43.2 x 28 Balloon Small Black Part 6579 Element 657926 ×4
  • Wheel 43.2 x 28 Balloon Small Yellow Part 6580 Element 4496701 or 4183681 ×4

Technic Gears 6 pieces

  • Technic Gear 12 Tooth Double Bevel Light Gray Part 32270 Element 4141454 or 4125322 ×2
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Light Gray Part 3648b Element 4107543 or 364802 ×1
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 1 spare in the box ×2
  • Technic Gear Rack 1 x 8 with Holes Light Gray Part 6630 Element 663002 ×1

Plates 4 pieces

  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×2
  • Plate 1 x 4 Purple Part 3710 Element 4142600 ×2

Technic Steering, Suspension and Engine 3 pieces

  • Technic Steering Arm with 2 Pins Black Part 32069 Element 6278276 or 4114671 ×2
  • Technic Steering Wheel Small (3 Studs Diameter) Light Gray Part 2819 Element 4113032 or 281902 ×1

Plates Special 2 pieces

  • Technic Plate 2 x 4 [3 Holes] Light Gray Part 3709 Element 370902 ×1
  • Technic Plate 2 x 6 [5 Holes] Light Gray Part 32001 Element 3200102 ×1

Tiles 2 pieces

  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×2

Technic Special 1 piece

  • Technic Seat / Chair [3 x 2 Base] Yellow Part 2717 Element 4251459 or 271724 ×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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