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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.

Hook Loader

Checking

42084 Hook Loader

176 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

Black 76 pieces

  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×5
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×6
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×4
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×3
  • Technic Axle and Pin Connector Perpendicular Double Split Black Part 41678 Element 4162857 ×2
  • Technic Axle and Pin Connector Toggle Joint Smooth Black Part 32126 Element 6457112 or 6322045 ×2
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×2
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×7
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×4
  • Technic Beam 3 x 3 L-Shape Thin Black Part 32056 Element 6271810 or 4112287 ×2
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×2
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×24
  • Tyre 30.4 x 14 Offset Tread [Centre Band] Black Part 92402 Element 4619323 ×4
  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Black Part 55982 Element 4517737 ×4

Red 29 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×8
  • Technic Axle Connector Smooth [with x Hole + Orientation] Red Part 59443 Element 4513174 ×3
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Red Part 11214 Element 6209519 ×6
  • Technic Axle and Pin Connector Angled #1 Red Part 32013 Element 6332580 or 4254606 ×4
  • Technic Beam 1 x 3 Thick Red Part 32523 Element 4153718 ×2
  • Technic Beam 1 x 7 Thick Red Part 32524 Element 4495933 or 4162098 ×3
  • Technic Beam 3 x 5 L-Shape Thick Red Part 32526 Element 4143154 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Red Part 3701 Element 370121 ×1

Light Bluish Gray 20 pieces

  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×2
  • Technic Axle and Pin Connector Angled #6 - 90° Light Bluish Gray Part 32014 Element 6268924 or 4509886 ×1
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×3
  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Light Bluish Gray Part 11478 Element 6328063 or 6029206 ×2
  • Technic Beam 3 x 5 L-Shape Thick Light Bluish Gray Part 32526 Element 4211713 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×5
  • Technic Driving Ring Connector Smooth [4 rounded side walls] Light Bluish Gray Part 26287 Element 6196757 ×1
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins Light Bluish Gray Part 48989 Element 4225033 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Light Bluish Gray Part 15100 Element 6172538 ×2

Blue 18 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×6
  • Technic Beam 1 x 3 Thick Blue Part 32523 Element 4509376 or 4144284 ×2
  • Technic Beam 2 x 4 L-Shape Thick Blue Part 32140 Element 6271829 or 4168114 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×8

Dark Bluish Gray 14 pieces

  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×1
  • Technic Axle Connector with Axle Hole Dark Bluish Gray Part 32039 Element 6184977 or 4210669 ×1
  • Technic Axle and Pin Connector Perpendicular Dark Bluish Gray Part 6536 Element 6536199 or 6261374 ×6
  • Technic Gear 8 Tooth [Reinforced] Dark Bluish Gray Part 10928 Element 6631413 or 6012451 ×4
  • Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface Dark Bluish Gray Part 62531 Element 6537708 or 6361938 ×2

Tan 9 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×7
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×2

Trans-Orange 4 pieces

  • Tile Round 1 x 1 Half Circle Trans-Orange Part 24246 Element 6507959 or 6249116 1 spare in the box ×4

Yellow 3 pieces

  • Technic Axle 5 Yellow Part 32073 Element 6130008 ×3

Trans-Clear 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×2

White 1 piece

  • Technic Pin Connector Round 1L [Beam] White Part 18654 Element 6550155 or 6177114 1 spare in the box ×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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