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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.

EV3 Expansion Set

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45560 EV3 Expansion Set

856 pieces in 140 part and color combinations.

LEGO counts 853 pieces. This inventory comes from a separate parts catalog and lists 856; 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

Black 298 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×4
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×2
  • Storage Bin, Dacta, Medium [New Style] Black Part 54187 ×1
  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 12 Black Part 3708 Element 370826 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×5
  • Technic Axle 6 Black Part 3706 Element 370626 ×1
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×22
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×6
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×5
  • Technic Axle and Pin Connector Angled #3 - 157.5° Black Part 32016 Element 6261386 or 4107082 ×4
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×3
  • Technic Axle and Pin Connector Angled #6 - 90° Black Part 32014 Element 6268905 or 4107767 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×4
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 ×6
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×2
  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Black Part 11478 Element 6327028 or 6030286 ×4
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black Part 6629 Element 6279881 or 4119800 ×2
  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin / Crank Black Part 33299a Element 4156980 ×1
  • Technic Beam 3 x 3 T-Shape Thick Black Part 60484 Element 4552347 or 4535771 ×2
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×2
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Black Part 32269 Element 4177430 ×1
  • Technic Gear Rack 1 x 13 with Axle and Pin Holes Black Part 64781 Element 6302830 or 4540906 ×2
  • Technic Link Tread Wide with Two Pin Holes, Reinforced Black Part 88323 Element 6014648 ×5
  • Technic Panel Curved 11 x 3 with 10 Pin Holes through Panel Surface Black Part 11954 Element 6031916 ×4
  • Technic Panel Fairing # 3 Small Smooth Long, Side A Black Part 64683 Element 4541924 ×2
  • Technic Panel Fairing # 4 Small Smooth Long, Side B Black Part 64391 Element 4541325 ×2
  • Technic Panel Fairing #1 Small Smooth Short, Side A Black Part 87080 Element 4566251 ×1
  • Technic Panel Fairing #13 Large Short Smooth, Side A Black Part 64394 Element 4558775 ×1
  • Technic Panel Fairing #14 Large Short Smooth, Side B Black Part 64680 Element 4558740 ×1
  • Technic Panel Fairing #2 Small Smooth Short, Side B Black Part 87086 Element 4566249 ×1
  • Technic Panel Fairing #5 Long Smooth, Side A Black Part 64681 Element 4558774 ×1
  • Technic Panel Fairing #6 Long Smooth, Side B Black Part 64393 Element 4558731 ×1
  • Technic Pin Connector Toggle Joint Smooth Double with Axle and Pin Holes Black Part 87408 Element 6278412 or 4558692 ×1
  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×170
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×8
  • Technic Tread Sprocket Wheel Large 10 Tooth Black Part 57519 Element 6526471 or 4582792 ×2
  • Tyre 24 x 14 Shallow Tread (Tread Small Hub), Band Around Center of Tread Black Part 89201 Element 6132299 or 4639695 ×2
  • Tyre 43.2 x 22 ZR Black Part 44309 Element 4184286 ×2
  • Tyre 56 x 28 ZR Street Black Part 41897 Element 6518574 or 6035364 ×2
  • Tyre 68.8 x 36 ZR Black Part 44771 Element 6062225 or 4614801 ×4

Light Bluish Gray 236 pieces

  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×12
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×8
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×2
  • Technic Axle 9 Light Bluish Gray Part 60485 Element 4535768 ×5
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×2
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×4
  • Technic Axle and Pin Connector Perpendicular Double 4L Light Bluish Gray Part 98989 Element 6308440 or 4652234 ×3
  • Technic Axle and Pin Connector Perpendicular Triple Light Bluish Gray Part 63869 Element 6331441 or 4538007 ×2
  • Technic Beam 1 x 11 Thick Light Bluish Gray Part 32525 Element 4611705 or 4534910 ×6
  • Technic Beam 1 x 11.5 Double Bent Thick Light Bluish Gray Part 32009 Element 6271156 or 4234240 ×4
  • Technic Beam 1 x 2 Thick Light Bluish Gray Part 43857 Element 4211862 ×3
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×1
  • Technic Beam 1 x 3 Thick Light Bluish Gray Part 32523 Element 4211655 ×10
  • Technic Beam 1 x 3 Thin Light Bluish Gray Part 6632 Element 6360043 or 4211566 ×10
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×5
  • Technic Beam 1 x 7 Thick Light Bluish Gray Part 32524 Element 4495930 or 4211665 ×16
  • Technic Beam 1 x 9 Thick Light Bluish Gray Part 40490 Element 6102449 or 4211866 ×7
  • Technic Beam 2 x 4 L-Shape Thick Light Bluish Gray Part 32140 Element 6271831 or 4211610 ×8
  • Technic Beam 3 x 5 L-Shape Thick Light Bluish Gray Part 32526 Element 4211713 ×6
  • Technic Beam 5 x 11 with 3 x 5 Opening Frame Thick Light Bluish Gray Part 64178 Element 4540797 ×6
  • Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Light Bluish Gray Part 64179 Element 4539880 ×9
  • Technic Beam Triangle Thin [Type II] Light Bluish Gray Part 99773 Element 6331428 or 6009019 ×5
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×45
  • Technic Gear 20 Tooth Bevel with Pin Hole Light Bluish Gray Part 87407 Element 4558690 ×2
  • Technic Gear 40 Tooth Light Bluish Gray Part 3649 Element 6195314 or 4285634 ×2
  • Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Across Part) Light Bluish Gray Part 55615 Element 4296059 ×4
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins Light Bluish Gray Part 48989 Element 4225033 ×10
  • 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 Perpendicular Long Light Bluish Gray Part 32557 Element 4211714 ×4
  • Technic Pin Connector Round [Slotted] Light Bluish Gray Part 62462 Element 6173127 or 4526985 ×2
  • Technic Steering / CV Joint Light Bluish Gray Part 32494 Element 6265690 or 6122217 ×2
  • Technic Steering Ball Joint Large Open with C-Shape Pivot Frame Light Bluish Gray Part 92910 Element 4610379 ×1
  • Technic Steering Portal Axle Housing Light Bluish Gray Part 92908 Element 6342037 or 4610377 ×2
  • Technic Turntable Large Type 2, 24/56 Tooth with Black Outside Gear Section [Complete Assembly] Light Bluish Gray Part 50163 Element 4624645 ×1
  • Technic Universal Joint 3L [Complete Assembly] Light Bluish Gray Part 61903 Element 6335279 or 6321309 ×2
  • Technic Worm Gear Light Bluish Gray Part 4716 Element 4211510 ×1
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×7
  • Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner Ring Light Bluish Gray Part 13971 Element 6359807 or 6044729 ×1
  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55982 Element 4490127 ×5
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Light Bluish Gray Part 56145 Element 4297210 ×3
  • Wheel 43.2 x 26 Technic Racing Small with 6 Pinholes Light Bluish Gray Part 56908 Element 6276854 or 4634091 ×2
  • Wheel 56 x 34 Technic Racing Medium with 6 Pin Holes Light Bluish Gray Part 15038 Element 6276851 or 6045310 ×4

Blue 92 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 1 spare in the box ×57
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×33
  • Technic Rubber Belt Medium [26mm ID] [Round Cross Section] Blue Part 85545 Element 6049730 or 4544147 ×2

Red 70 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×22
  • Technic Axle Connector Smooth [with x Hole + Orientation] Red Part 59443 Element 4513174 ×4
  • Technic Beam 1 x 3 Thick Red Part 32523 Element 4153718 ×2
  • Technic Beam 2 x 4 L-Shape Thick Red Part 32140 Element 6271827 or 4141270 ×4
  • Technic Changeover Catch - + opening Red Part 6641 Element 6099696 or 4270473 ×1
  • Technic Driving Ring 2L, 4 Ridges Red Part 6539 Element 4278957 ×1
  • Technic Panel Fairing #21 5L Small Smooth, Side B Red Part 11946 Element 6340601 or 6022750 ×2
  • Technic Panel Fairing #22 5L Small Smooth, Side A Red Part 11947 Element 6343986 or 6022752 ×2
  • Technic Rubber Belt Medium [24mm ID] [Round Cross Section] Red Part 85544 Element 4544145 or 4544143 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Red Part 41669 Element 4185661 ×2
  • Technic Tread Attachment 1 x 3 Red Part 14149 Element 6036424 ×28

Dark Bluish Gray 43 pieces

  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Dark Bluish Gray Part 6553 Element 4210665 ×2
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×8
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×4
  • Technic Axle 8 with Stop Dark Bluish Gray Part 55013 Element 4499858 ×6
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 ×4
  • Technic Cam Dark Bluish Gray Part 6575 Element 6575199 or 4210759 ×2
  • Technic Gear 16 Tooth with Clutch [Smooth] Dark Bluish Gray Part 6542b Element 6542199 or 4237267 ×2
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Dark Bluish Gray Part 3648b Element 6133119 or 4514558 ×3
  • Technic Gear 8 Tooth [Reinforced] Dark Bluish Gray Part 10928 Element 6631413 or 6012451 ×2
  • Technic Gear Differential with Inner Tabs and Closed Center, 28 Bevel Teeth [Beveled Edge] Dark Bluish Gray Part 62821b Element 4562210 or 4525184 ×1
  • Technic Link 1 x 6 without Stoppers Dark Bluish Gray Part 32005a Element 4629920 or 4211026 ×2
  • Technic Pin Connector Hub with 2 Perpendicular Axles Dark Bluish Gray Part 10197 Element 6005331 ×2
  • Technic Steering / CV Joint Axle Dark Bluish Gray Part 92906 Element 4610374 ×2
  • Technic Steering Ball Joint Large Receptacle Dark Bluish Gray Part 92911 Element 4610380 ×1
  • Technic Steering Hub for Portal Axle Dark Bluish Gray Part 92909 Element 4610378 ×2

Tan 33 pieces

  • Technic Axle 4 with Centre Stop Tan Part 99008 Element 4666999 ×2
  • Technic Axle Connector Ridged [with x Hole x Orientation] Tan Part 6538b Element 4207456 or 4140453 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×6
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 1 spare in the box ×3
  • Technic Gear 20 Tooth Bevel Tan Part 32198 Element 6031962 or 4514557 ×1
  • Technic Pin 3/4 Tan Part 32002 Element 6663097 or 6013938 1 spare in the box ×6
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×14

White 20 pieces

  • Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×2
  • Storage / Sorting Tray, Dacta, 13 Cups [For New Style Storage Bins] White Part 54572 ×1
  • Technic Beam 1 x 11.5 Double Bent Thick White Part 32009 Element 6271161 or 6004157 ×2
  • Technic Beam 1 x 15 Thick White Part 32278 Element 4542578 or 4227533 ×13
  • Technic Beam 1 x 3 Thick White Part 32523 Element 6632140 or 4208160 ×1
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] White Part 41669 Element 4173941 ×1

Yellow 18 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×16
  • Technic Rubber Belt Large [33mm ID] [Round Cross Section] Yellow Part 85546 Element 4544151 or 70905 ×2

Dark Tan 16 pieces

  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×16

Trans-Red 10 pieces

  • Cone 1 x 1 [Top Groove] Trans-Red Part 59900 Element 6514021 or 6337596 ×4
  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×6

Trans-Light Blue 8 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Light Blue Part 3941 Element 6514282 or 6273153 ×2
  • Hose, Ribbed 7mm D. 19L / 15.2cm Trans-Light Blue Part 78c19 Element 4631648 ×4
  • Large Figure Weapon, Barrel with 2 Pin Holes and 3 Axle Holes Trans-Light Blue Part 98585 Element 6503210 or 6248915 ×2

Dark Brown 5 pieces

  • Technic Axle and Pin Connector Angled Triple [120° Offset] Dark Brown Part 10288 Element 6273219 or 6005755 ×5

Flat Silver 2 pieces

  • Flexible Ribbed Hose 8mm Ends 19L Flat Silver Part 57539 Element 6044636 or 4615232 ×2

Trans-Dark Blue 2 pieces

  • Large Figure Weapon Spiked Ball, Half Trans-Dark Blue Part 98578 Element 6027626 ×2

Trans-Neon Green 2 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Neon Green Part 3941 Element 6273157 or 611649 ×2

Trans-Clear 1 piece

  • Storage Bin Lid, Dacta [For New Style Trays] Trans-Clear Part 54190 ×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

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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.

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