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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.

Tractor with Trailer

Checking

8063 Tractor with Trailer

1,100 pieces in 150 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.

4 more look-alike pairs
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black ×2 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 9 Thick Black ×9 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
  • Technic Beam 2 x 4 L-Shape Thick Black ×13 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
  • Technic Beam 3 x 5 L-Shape Thick Black ×3 Dark Bluish Gray ×6 Black is darker than Dark Bluish Gray.
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Piece checklist

Black 415 pieces

  • Axle Hose, Soft 11L Black Part 32199 Element 4234438 or 4121646 ×1
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×3
  • Hose Rigid 3mm D. 12L / 9.6cm Black Part 75c12 Element 6434164 or 6132327 ×2
  • Plate 1 x 10 Black Part 4477 Element 447726 ×1
  • Plate 1 x 3 Black Part 3623 Element 362326 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×1
  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×2
  • Technic Axle 10 Black Part 3737 Element 373726 ×3
  • Technic Axle 4 Black Part 3705 Element 370526 ×12
  • Technic Axle 6 Black Part 3706 Element 370626 ×13
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×15
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×4
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×12
  • 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 ×1
  • Technic Axle and Pin Connector Angled #6 - 90° Black Part 32014 Element 6268905 or 4107767 ×2
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 Also in Dark Bluish Gray ×14
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 Also in Dark Bluish Gray ×7
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×2
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 Also in Dark Bluish Gray ×5
  • Technic Axle and Pin Connector Perpendicular Double Split Black Part 41678 Element 4162857 ×3
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×8
  • Technic Beam 1 x 13 Thick Black Part 41239 Element 4522933 or 4164422 Also in Dark Bluish Gray ×3
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 2 Thick Black Part 43857 Element 4385726 or 4177444 ×2
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×8
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×6
  • Technic Beam 1 x 4 Thin with Stud Connector Black Part 2825 Element 6331570 or 4107136 ×4
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Black Part 32348 Element 6278125 or 4128593 ×4
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 ×2
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black Part 6629 Element 6279881 or 4119800 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 Also in Dark Bluish Gray ×9
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 Also in Dark Bluish Gray ×13
  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin / Crank Black Part 33299a Element 4156980 ×2
  • Technic Beam 3 x 3 L-Shape Thin Black Part 32056 Element 6271810 or 4112287 ×22
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 Also in Dark Bluish Gray ×3
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Black Part 32250 Element 6327162 or 4128557 ×8
  • Technic Beam Triangle Thin [Type I] Black Part 2905 Element 4142543 or 290526 ×4
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×3
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Black Part 32269 Element 4177430 ×3
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×3
  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×4
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×12
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 6 spares in the box ×164
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×1
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×2
  • Tyre 62.4 x 20 Black Part 32019 Element 6411639 or 4547373 ×4
  • Tyre 81.6 x 38 R Balloon Black Part 45982 Element 6223858 or 4198613 ×2
  • Tyre 94.8 x 44 R Balloon Black Part 54120 Element 6005202 or 4291178 ×2

Light Bluish Gray 286 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×2
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×37
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×31
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×8
  • Technic Axle Connector Smooth [with x Hole + Orientation] Light Bluish Gray Part 59443 Element 4512360 ×17
  • Technic Axle and Pin Connector Angled #2 - 180° Light Bluish Gray Part 32034 Element 6346487 or 4211567 ×11
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×8
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Light Bluish Gray Part 42003 Element 6273724 or 4211779 ×8
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×8
  • Technic Beam 1 x 15 Thick Light Bluish Gray Part 32278 Element 4542577 or 4211770 ×3
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Light Bluish Gray Part 60483 Element 6265089 or 6004888 ×1
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×8
  • Technic Beam 1 x 6 Thin Light Bluish Gray Part 32063 Element 6170293 or 4211586 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Light Bluish Gray Part 32271 Element 6276836 or 4211624 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 5 spares in the box ×51
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 3 spares in the box ×11
  • Technic Engine Connecting Rod Light Bluish Gray Part 2852 Element 6000018 or 4655728 ×4
  • Technic Engine Crankshaft Light Bluish Gray Part 2853 Element 6640384 or 4211609 ×2
  • Technic Engine Cylinder with Side Slots Light Bluish Gray Part 2850a ×4
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Bluish Gray Part 4019 Element 4562487 or 4211563 ×5
  • Technic Gear 24 Tooth Crown with Reinforcements [New Style] Light Bluish Gray Part 3650c Element 4211434 ×1
  • Technic Gear Rack 1 x 4 Light Bluish Gray Part 3743 Element 6457283 or 4211450 ×1
  • Technic Linear Actuator with Dark Bluish Gray Ends [Original Version] Light Bluish Gray Part 61927a Element 6162391 or 4528037 ×1
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 5 spares in the box ×25
  • Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Across Part) Light Bluish Gray Part 55615 Element 4296059 ×2
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins Light Bluish Gray Part 48989 Element 4225033 ×3
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Bluish Gray Part 32054 Element 4211865 ×12
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 3 spares in the box ×8
  • Technic Steering Wheel Small (3 Studs Diameter) Light Bluish Gray Part 2819 Element 4580510 or 4211578 ×1
  • Technic Worm Gear Light Bluish Gray Part 4716 Element 4211510 ×1
  • Wheel 43.2 x 18 with Extended Axle Stem Light Bluish Gray Part 32020 Element 4496707 or 4179382 ×4
  • Wheel 43.2 x 26 Technic Racing Small with 3 Pinholes Light Bluish Gray Part 41896 Element 4211788 ×2
  • Wheel 56 x 34 Technic Racing Medium with 3 Pin Holes Light Bluish Gray Part 44772 Element 4211845 ×2

Blue 127 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×59
  • Technic Beam 1 x 3 Thin Blue Part 6632 Element 6344176 or 4107829 ×2
  • Technic Beam 1 x 5 Thick Blue Part 32316 Element 4142134 or 4128591 ×4
  • Technic Beam 2 x 4 L-Shape Thick Blue Part 32140 Element 6271829 or 4168114 ×1
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×57
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Blue Part 41669 Element 4185662 ×4

Dark Bluish Gray 100 pieces

  • Chain 16L [21 Links] Dark Bluish Gray Part 60169 Element 6258887 or 4516456 ×2
  • Technic Axle 3 with Stud Dark Bluish Gray Part 6587 Element 6587199 or 6129590 ×6
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×9
  • Technic Axle and Pin Connector Block 4 x 3 x 2 1/2 [Linear Actuator Holder] Dark Bluish Gray Part 61904 Element 6356106 or 4528038 ×1
  • Technic Axle and Pin Connector Perpendicular Dark Bluish Gray Part 6536 Element 6536199 or 6261374 Also in Black ×4
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 Also in Black ×4
  • Technic Axle and Pin Connector Perpendicular Double Dark Bluish Gray Part 32291 Element 6280395 or 4210655 Also in Black ×2
  • Technic Beam 1 x 11 Thick Dark Bluish Gray Part 32525 Element 4603472 or 4534914 Also in Black ×14
  • Technic Beam 1 x 13 Thick Dark Bluish Gray Part 41239 Element 4522937 or 4261932 Also in Black ×4
  • Technic Beam 1 x 15 Thick Dark Bluish Gray Part 32278 Element 32278199 or 4542576 Also in Black ×1
  • Technic Beam 1 x 4 Thin Dark Bluish Gray Part 32449 Element 6327561 or 4210749 ×16
  • Technic Beam 1 x 5 Thick Dark Bluish Gray Part 32316 Element 32316199 or 4210686 ×13
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Dark Bluish Gray Part 6629 Element 6279883 or 4210638 Also in Black ×4
  • Technic Beam 1 x 9 Thick Dark Bluish Gray Part 40490 Element 4645730 or 4210757 Also in Black ×1
  • Technic Beam 2 x 4 L-Shape Thick Dark Bluish Gray Part 32140 Element 6271830 or 4210667 Also in Black ×2
  • Technic Beam 3 x 5 L-Shape Thick Dark Bluish Gray Part 32526 Element 4210753 Also in Black ×6
  • Technic Engine Crankshaft Center Dark Bluish Gray Part 2854 Element 6007058 or 4210987 ×3
  • Technic Gear 16 Tooth with Clutch [Toothed] Dark Bluish Gray Part 6542a ×2
  • Technic Gear 8 Tooth Dark Bluish Gray Part 3647 Element 4514559 ×2
  • Technic Gear Differential, 24 -16 Tooth with Clutch on Both Sides Dark Bluish Gray Part 6573 Element 6573199 or 4211023 ×1
  • Technic Pin 3/4 Dark Bluish Gray Part 32002 Element 32002199 or 4211050 1 spare in the box ×2
  • Tile 1 x 4 with Train Controls Print Dark Bluish Gray Part 2431pr0028 Element 6020825 or 4215740 ×1

Red 95 pieces

  • Axle Hose, Soft 14L Red Part 32201 Element 4268647 or 4255547 ×6
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×34
  • Technic Axle Connector Smooth [with x Hole + Orientation] Red Part 59443 Element 4513174 ×1
  • Technic Axle Connector with Axle Hole Red Part 32039 Element 4118897 ×1
  • Technic Beam 1 x 11 Thick Red Part 32525 Element 4562805 or 4534913 ×2
  • Technic Beam 1 x 15 Thick Red Part 32278 Element 4542575 or 4163147 ×12
  • Technic Beam 1 x 3 Thick Red Part 32523 Element 4153718 ×3
  • Technic Beam 1 x 3 Thin Red Part 6632 Element 6364451 or 4107824 ×6
  • Technic Beam 1 x 5 Thick Red Part 32316 Element 4142132 or 4128589 ×1
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Red Part 32348 Element 6332236 or 6278130 ×4
  • Technic Beam 1 x 7 Thick Red Part 32524 Element 4495933 or 4162098 ×3
  • Technic Beam 1 x 9 Thick Red Part 40490 Element 4645733 or 4192225 ×1
  • Technic Beam 2 x 4 L-Shape Thick Red Part 32140 Element 6271827 or 4141270 ×1
  • Technic Beam 3 x 5 L-Shape Thick Red Part 32526 Element 4143154 ×8
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Red Part 32250 Element 6174847 or 4254610 ×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 #13 Large Short Smooth, Side A Red Part 64394 Element 6293391 or 4540825 ×1
  • Technic Panel Fairing #14 Large Short Smooth, Side B Red Part 64680 Element 4543489 ×1
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Red Part 32054 Element 4140806 or 4125198 ×4

White 18 pieces

  • Axle Hose, Soft 12L White Part 32200 Element 4296264 or 4227522 ×1
  • Technic Axle and Pin Connector Perpendicular White Part 6536 Element 6261372 or 4173670 ×6
  • Technic Beam 1 x 11 Thick White Part 32525 Element 6028103 or 4296265 ×3
  • Technic Beam 1 x 4 Thin White Part 32449 Element 6360072 or 4144138 ×4
  • Tile 1 x 2 with Diagonal Red Stripes Print White Part 3069bpr0085 Element 4212379 ×4

Tan 16 pieces

  • 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 ×4
  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×4
  • Technic Gear 20 Tooth Bevel Tan Part 32198 Element 6031962 or 4514557 ×1
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×6

Green 13 pieces

  • Technic Panel 5 x 11 x 1 Green Part 64782 Element 4545101 ×13

Trans-Clear 11 pieces

  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 ×11

Trans-Orange 6 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 3 spares in the box ×6

Trans-Red 6 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 3 spares in the box ×6

Yellow 6 pieces

  • Technic Engine Piston Round Yellow Part 2851 Element 4112203 or 285124 ×4
  • Technic Knob Wheel Yellow Part 32072 Element 6284189 or 4203493 ×2

Trans-Neon Orange 1 piece

  • Brick Round 2 x 2 with Axle Hole Trans-Neon Orange Part 3941 Element 6273156 or 611647 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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