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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.

Cool Movers

Checking

8433 Cool Movers

215 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Technic Beams 57 pieces

  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×2
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 Also in Dark Bluish Gray ×1
  • 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 Beam 3 x 5 L-Shape Thick Blue Part 32526 Element 4158923 ×1
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Blue Part 32250 Element 6371955 or 6339225 ×6
  • Technic Beam 1 x 11 Thick Dark Bluish Gray Part 32525 Element 4603472 or 4534914 ×3
  • Technic Beam 1 x 11.5 Double Bent Thick Dark Bluish Gray Part 32009 Element 6271155 or 4210668 ×2
  • Technic Beam 1 x 3 Thin Dark Bluish Gray Part 6632 Element 6632199 or 6364452 Also in Black ×6
  • Technic Beam 1 x 4 Thin Dark Bluish Gray Part 32449 Element 6327561 or 4210749 ×4
  • Technic Beam 1 x 5 Thick Dark Bluish Gray Part 32316 Element 32316199 or 4210686 ×3
  • Technic Beam 1 x 5 Thin Dark Bluish Gray Part 32017 Element 32017199 or 6215176 ×2
  • Technic Beam 2 x 4 L-Shape Thick Dark Bluish Gray Part 32140 Element 6271830 or 4210667 ×4
  • Technic Beam 3 x 3 L-Shape Thin Dark Bluish Gray Part 32056 Element 6271814 or 4210659 ×4
  • Technic Beam 3 x 5 L-Shape Thick Dark Bluish Gray Part 32526 Element 4210753 Also in Black ×2
  • Technic Beam Rotor 3 Blade Thin Pearl Light Gray Part 44374 Element 4508728 or 4180661 ×1
  • Technic Beam 1 x 2 Thin White Part 41677 Element 6371416 or 4163533 ×8
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin White Part 32250 Element 6430835 or 6063443 ×2

Technic Pins 46 pieces

  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×7
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×23
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×4
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 ×8
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Technic Axles 33 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×8
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×5
  • Technic Axle 3 with Stud Dark Bluish Gray Part 6587 Element 6587199 or 6129590 ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×15
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×1

Technic Connectors 29 pieces

  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×1
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×1
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×1
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 Also in Dark Bluish Gray ×2
  • Technic Block 3 x 5 x 1 2/3 Black Part 32310 Element 4141815 or 4140427 ×1
  • Technic Pin Connector Perpendicular Long Blue Part 32557 Element 4158925 ×2
  • Technic Pin Connector Round [No Slot] Blue Part 75535 Element 7553523 or 4143093 ×2
  • 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 Also in Black ×1
  • Technic Axle and Pin Connector Toggle Joint Smooth Light Bluish Gray Part 32126 Element 4211575 ×4
  • Technic Axle and Pin Connector Angled #1 Trans-Red Part 32013 Element 4221573 or 4163695 ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] White Part 6538b Element 4113803 or 4100407 ×2
  • Technic Axle and Pin Connector Angled #1 White Part 32013 Element 6332573 or 4118981 ×2
  • Technic Axle and Pin Connector Perpendicular White Part 6536 Element 6261372 or 4173670 ×2
  • Technic Pin Connector Perpendicular Long White Part 32557 Element 4157449 ×2

Wheels and Tyres 16 pieces

  • Tyre 24 x 14 Shallow Tread (Tread Small Hub) Black Part 30648 Element 4524358 or 4153005 ×4
  • Tyre 30.4 x 14 Offset Tread Black Part 30391 Element 4140670 or 3039126 ×4
  • Wheel 18 x 14 with Tread Small Hub Dark Bluish Gray Part 30285 Element 4223034 ×8

Technic Bushes 9 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 ×8
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Bluish Gray Part 32123a 1 spare in the box ×1

Plates Round Curved and Dishes 8 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×5

Technic Panels 6 pieces

  • Technic Panel Fairing # 5 Small Short, Large Hole, Side A Blue Part 32527 Element 4507353 or 4143818 ×1
  • Technic Panel Fairing # 6 Small Short, Large Hole, Side B Blue Part 32528 Element 4507352 or 4143817 ×1
  • Technic Panel Fairing # 7 Small Long, Large Hole, Side A Blue Part 32534 Element 4222012 or 4156357 ×1
  • Technic Panel Fairing # 8 Small Long, Large Hole, Side B Blue Part 32535 Element 4222013 or 4156362 ×1
  • Technic Panel Fairing # 5 Small Short, Large Hole, Side A White Part 32527 Element 4223032 or 4144129 ×1
  • Technic Panel Fairing # 6 Small Short, Large Hole, Side B White Part 32528 Element 4223033 or 4144130 ×1

Technic Special 4 pieces

  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Pearl Light Gray Part 41669 Element 4284480 or 4177440 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Trans-Red Part 41669 Element 4163567 ×2

Large Buildable Figures 2 pieces

  • Large Figure Weapon Sword, Hydraulics and 3 Holes Pearl Light Gray Part 32552 Element 4223959 or 4176018 ×2

Technic Steering, Suspension and Engine 2 pieces

  • Technic Engine Crankshaft Center Black Part 2854 Element 4171912 or 4107064 ×2

Tubes and Hoses 2 pieces

  • Axle Hose, Soft 16L Pearl Light Gray Part 32202 Element 4142619 ×2

String, Bands and Reels 1 piece

  • Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×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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