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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.

Koi

Checking

81000 Koi

293 pieces in 66 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 Connectors 100 pieces

  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×15
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×7
  • Technic Pin Connector 3L with 2 Pins and Center Hole Black Part 15461 Element 6055630 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Black Part 15100 Element 6073231 ×1
  • Technic Pin Connector Hub with 2 Perpendicular Axles Black Part 10197 Element 6099801 or 6098801 ×1
  • Technic Pin Connector Perpendicular 2 x 4 Bent - Beam with 90 Hole Ø 4.8 Black Part 11455 Element 6172966 or 6019986 ×2
  • Technic Pin Connector Round 1L [Beam] Black Part 18654 Element 6121485 1 spare in the box ×1
  • Technic Axle Connector with Axle Hole Dark Bluish Gray Part 32039 Element 6184977 or 4210669 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Dark Bluish Gray Part 32034 Element 32034199 or 6271876 ×6
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 ×4
  • Technic Axle and Pin Connector Perpendicular Double Dark Bluish Gray Part 32291 Element 6280395 or 4210655 ×4
  • Technic Pin Connector Hub with 2 Axles Dark Bluish Gray Part 27940 Element 6167281 ×2
  • Technic Pin Connector Round [Slotted] Flat Silver Part 62462 Element 6245499 or 6054858 ×1
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×3
  • Technic Axle and Pin Connector Perpendicular Triple Light Bluish Gray Part 63869 Element 6331441 or 4538007 ×1
  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes] Light Bluish Gray Part 87082 Element 4560175 ×2
  • Technic Pin Connector Hub with 1 Axle White Part 22961 Element 6179606 ×22
  • Technic Pin Connector Round 1L [Beam] White Part 18654 Element 6550155 or 6177114 1 spare in the box ×6
  • Technic Pin Connector Round [Slotted] White Part 62462 Element 6550164 or 6173116 ×18

Technic Pins 94 pieces

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×3
  • 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 with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×15
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×11
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 2 spares in the box ×3
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×21
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2
  • Technic Pin with Friction Ridges Lengthwise and Towball Red Part 6628 Element 6254216 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×3
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×2
  • Technic Pin with Foil Connector White Part 49731 Element 6271188 1 spare in the box ×31

Technic Axles 35 pieces

  • Technic Axle 8 Black Part 3707 Element 370726 ×3
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×2
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×5
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×6
  • Technic Axle 6 Red Part 3706 Element 6130002 or 4191526 ×2
  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×5
  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×3
  • Technic Axle 4 with Centre Stop Tan Part 99008 Element 4666999 ×2
  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×7

Technic Beams 23 pieces

  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×2
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×1
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×2
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 ×8
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×1
  • Technic Beam 3 x 3 T-Shape Thick Black Part 60484 Element 4552347 or 4535771 ×1
  • Technic Beam Triangle Thin [Type II] Black Part 99773 Element 6331437 or 6010864 ×2
  • Technic Beam 1 x 2 Thin Dark Bluish Gray Part 41677 Element 6338422 or 4210980 ×2
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×2
  • Technic Beam 3 x 5 L-Shape Thick Light Bluish Gray Part 32526 Element 4211713 ×2

Bricks Round and Cones 10 pieces

  • Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end White Part 25214 Element 6194851 ×8
  • Cone 1 x 1 [Top Groove] White Part 59900 Element 6601844 or 4518400 ×2

Hinges, Arms and Turntables 8 pieces

  • Hinge Cylinder 1 x 2 Locking with 1 Finger and Axle Hole On Ends Black Part 30552 Element 4158848 ×4
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Black Part 30553 Element 4143372 ×4

Technic Beams Special 7 pieces

  • Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Black Part 64179 Element 6016154 ×2
  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced Light Bluish Gray Part 33299b Element 4563045 ×1
  • Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Light Bluish Gray Part 64179 Element 4539880 ×4

Technic Gears 5 pieces

  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×2
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×1
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Tan Part 18575 Element 6346517 or 6084724 ×2

Animal / Creature Body Parts 4 pieces

  • Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - Long White Part 13564 Element 6269074 or 6032360 1 spare in the box ×2
  • Skin Sheet 1 for Set 81000-1 [No Color/Any Color] Part 59441c01 Element 6271654 ×1
  • Skin Sheet 2 for Set 81000-1 [No Color/Any Color] Part 59437c01 Element 6271642 ×1

Plates Round Curved and Dishes 3 pieces

  • Plate Round 1 x 1 with Open Stud Black Part 85861 Element 6168646 or 6100627 1 spare in the box ×2
  • Plate Round 1 x 1 Swirled Top Flat Silver Part 15470 Element 6058160 1 spare in the box ×1

Bars, Ladders and Fences 2 pieces

  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Black Part 58176 Element 6174075 or 6070376 1 spare in the box ×2

Technic Bushes 2 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×2

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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