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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.

Volvo FMX Truck & EC230 Electric Excavator

Checking

42175 Volvo FMX Truck & EC230 Electric Excavator

2,274 pieces in 285 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.

15 more look-alike pairs
  • Technic Beam 1 x 15 Thick Black ×11 Dark Bluish Gray ×6 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 2 Thick Black ×2 Dark Bluish Gray ×6 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black ×16 Dark Bluish Gray ×5 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 2 Thin Black ×31 Dark Bluish Gray ×12 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 3 Thick Black ×35 Dark Bluish Gray ×16 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 4 Thin Black ×4 Dark Bluish Gray ×8 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 5 Thick Black ×46 Dark Bluish Gray ×7 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Black ×17 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 7 Thick Black ×19 Dark Bluish Gray ×3 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black ×2 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
  • Technic Beam 1 x 9 Thick Black ×4 Dark Bluish Gray ×6 Black is darker than Dark Bluish Gray.
  • Technic Beam 3 x 3 T-Shape Thick Black ×3 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
  • Technic Beam 3 x 5 L-Shape Thick Black ×13 Dark Bluish Gray ×9 Black is darker than Dark Bluish Gray.
  • Technic Panel 3 x 11 x 1 Black ×13 Dark Bluish Gray ×3 Black is darker than Dark Bluish Gray.
  • Technic Pin Connector Round 1L [Beam] Black ×10 Dark Bluish Gray ×6 Black is darker than Dark Bluish Gray.
Show

Piece checklist

Black 1,119 pieces

  • Axle Hose, Soft 11L Black Part 32199 Element 4234438 or 4121646 ×2
  • Axle Hose, Soft 7L Black Part 32580 Element 6132744 ×1
  • Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] Black Part 3484 Element 6439039 ×3
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×1
  • Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Black Part 25214 Element 6179182 ×2
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×3
  • Hose, Pneumatic 4mm D. 18L / 144mm Black Part 5102c18 Element 6477132 ×1
  • Hose, Pneumatic 4mm D. 29L / 232mm Black Part 5102c29 Element 6390590 ×1
  • Hose, Pneumatic 4mm D. 32L / 256mm Black Part 5102c32 Element 6477125 or 6150244 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate Round 1 x 1 with Open Stud Black Part 85861 Element 6168646 or 6100627 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×5
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×5
  • Plate Special 1 x 2 with Pin Hole Underneath Black Part 18677 Element 6192309 or 6167497 ×9
  • String with End Studs 31L Overall Black Part 14226c31 Element 6510782 or 6096956 ×1
  • Technic Axle 10 Black Part 3737 Element 373726 ×1
  • Technic Axle 6 Black Part 3706 Element 370626 ×10
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 Also in Dark Bluish Gray ×10
  • Technic Axle Connector with Axle Hole [Reinforced] Black Part 42135 Element 6331716 ×7
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×29
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 Also in Dark Bluish Gray ×3
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×1
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×2
  • 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 ×14
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Black Part 42003 Element 6273708 or 4200326 Also in Dark Bluish Gray ×9
  • 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 Split [Reinforced] Black Part 69819 Element 6349281 ×2
  • Technic Axle and Pin Connector Perpendicular Triple Black Part 63869 Element 6362991 or 6007966 ×10
  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 Also in Dark Bluish Gray ×14
  • Technic Beam 1 x 11 Thick with Alternating Holes Black Part 73507 Element 6330585 ×14
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 Also in Dark Bluish Gray ×11
  • Technic Beam 1 x 15 Thick with Alternating Holes Black Part 71710 Element 6321716 ×7
  • Technic Beam 1 x 2 Thick Black Part 43857 Element 4385726 or 4177444 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Black Part 60483 Element 6265091 or 6006140 Also in Dark Bluish Gray ×16
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 Also in Dark Bluish Gray ×31
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 Also in Dark Bluish Gray ×35
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×24
  • Technic Beam 1 x 4 Thin Black Part 32449 Element 6327548 or 4142236 Also in Dark Bluish Gray ×4
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 Also in Dark Bluish Gray ×46
  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Black Part 11478 Element 6327028 or 6030286 Also in Dark Bluish Gray ×17
  • Technic Beam 1 x 6 Thin Black Part 32063 Element 6163980 or 4114634 ×2
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 Also in Dark Bluish Gray ×19
  • Technic Beam 1 x 7 Thick with Alternating Holes Black Part 2391 Element 6435016 ×6
  • Technic Beam 1 x 7 Thin Black Part 32065 Element 6271573 or 6253293 ×1
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Black Part 6629 Element 6279881 or 4119800 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 Also in Dark Bluish Gray ×4
  • Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick Black Part 71708 Element 6326047 ×8
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×27
  • Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin Hole Black Part 61408 Element 6313520 ×4
  • Technic Beam 3 x 3 T-Shape Thick Black Part 60484 Element 4552347 or 4535771 Also in Dark Bluish Gray ×3
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 Also in Dark Bluish Gray ×13
  • Technic Beam 3 x 5 L-Shape Thick with Alternating Holes Black Part 2477 Element 6408182 ×2
  • Technic Beam Frame 3 x 13 with 1 Center Cross Beams, 2 Openings Thick Black Part 4526 Element 6452876 ×4
  • Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Black Part 64179 Element 6016154 ×4
  • Technic Beam Frame 7 x 11 Black Part 39794 Element 6265643 ×1
  • Technic Connector Beam 3 x 3 Black Part 39793 Element 6265644 ×1
  • Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] Black Part 42195 Element 6286381 ×3
  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×4
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Black Part 18575 Element 6346535 or 6093977 ×3
  • Technic Link Tread Wide with Two Pin Holes, Soft Plastic Black Part 42479 Element 6325504 ×60
  • Technic Panel 3 x 11 x 1 Black Part 15458 Element 6080356 Also in Dark Bluish Gray ×13
  • Technic Panel 3 x 7 x 1 Black Part 71709 Element 6331935 ×3
  • Technic Panel 5 x 11 x 1 Black Part 64782 Element 4566243 ×6
  • Technic Panel Fairing #1 Small Smooth Short, Side A Black Part 87080 Element 4566251 ×1
  • Technic Panel Fairing #10 Medium Triangle Smooth Black Part 2403 Element 6510087 or 6426604 ×1
  • Technic Panel Fairing #2 Small Smooth Short, Side B Black Part 87086 Element 4566249 ×1
  • Technic Panel Fairing #21 5L Small Smooth, Side B Black Part 11946 Element 6316923 or 6023036 ×1
  • Technic Panel Fairing #22 5L Small Smooth, Side A Black Part 11947 Element 6319983 or 6022761 ×1
  • Technic Panel Fairing #7 3L Very Small Smooth, Side A Black Part 2387 Element 6510991 or 6426589 ×4
  • Technic Panel Fairing #8 3L Very Small Smooth, Side B Black Part 2389 Element 6513874 or 6426590 ×4
  • Technic Panel Fairing #9 Medium Triangle Smooth Black Part 2395 Element 6510081 or 6426603 ×1
  • Technic Panel Fairing 2 x 3 x 1 Black Part 71682 Element 6331026 ×1
  • Technic Pin Connector 3L with 2 Pins and Center Hole [Pin Ridges Across Part] Black Part 46189 Element 6325521 or 6267991 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Black Part 65487 Element 6282140 ×17
  • Technic Pin Connector Hub with 2 Perpendicular Axles Black Part 10197 Element 6099801 or 6098801 ×6
  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] Black Part 44874 Element 6366229 ×2
  • Technic Pin Connector Round 1L [Beam] Black Part 18654 Element 6121485 1 spare in the box Also in Dark Bluish Gray ×10
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×10
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] Black Part 65304 Element 6321745 ×29
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 6 spares in the box ×425
  • Technic Steering Wheel Small (3 Studs Diameter) Black Part 2819 Element 4580509 or 4160709 ×1
  • Technic Tread Sprocket Wheel Small 6 Tooth Black Part 57520 Element 4662228 or 4544527 ×4
  • Technic Turntable Large Type 4 Top, 60 Tooth Black Part 88738 Element 6413529 ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×3
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×2
  • Tile 2 x 3 Black Part 26603 Element 6162892 ×2
  • Tile Round 1 x 1 Black Part 98138 Element 6284070 or 6139403 1 spare in the box ×1
  • Tile Special Round 2 x 2 with Hole Black Part 15535 Element 6143850 ×5
  • Tyre 14 x 6 Solid Smooth Black Part 50951 Element 4246901 1 spare in the box ×4
  • Tyre 49.5 x 14 Black Part 70490 Element 6424619 or 6319995 ×6
  • Tyre Offroad 37 x 14 Black Part 35578 Element 6518604 or 6248793 ×6
  • Wheel 11 x 8 with Center Groove Black Part 42610 Element 6291068 ×4
  • Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner Ring Black Part 13971 Element 6194485 ×6

Blue 300 pieces

  • Hose, Pneumatic 4mm D. 4L / 3.2cm Blue Part 5102c04 Element 6510034 or 6503700 ×1
  • Hose, Pneumatic 4mm D. 6L / 4.8cm Blue Part 5102c06 Element 6503701 or 6449522 ×2
  • Pneumatic Pump Large (11L) with 1 x 3 Liftarm Blue Part 26288 Element 6353193 or 6152004 ×1
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×97
  • Technic Gear 12 Tooth with Axle Hole Blue Part 69778 Element 6396479 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Blue Part 65487 Element 6282145 ×3
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×194

Light Bluish Gray 246 pieces

  • Antenna 1 x 4 with Flat Top Light Bluish Gray Part 3957b Element 4211473 1 spare in the box ×2
  • Dish 4 x 4 Inverted [Radar] Light Bluish Gray Part 3960 Element 4211664 ×2
  • Hose, Pneumatic 4mm D. 13L / 10.4cm Light Bluish Gray Part 5102c13 Element 6477115 ×1
  • Hose, Pneumatic 4mm D. 20L / 16cm Light Bluish Gray Part 5102c20 Element 6477129 ×1
  • Hose, Pneumatic 4mm D. 25L / 20cm Light Bluish Gray Part 5102c25 Element 6477124 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×6
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×2
  • Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs Light Bluish Gray Part 66792 Element 6294703 ×2
  • Plate Special 2 x 2 with Pin on Bottom Light Bluish Gray Part 2476a Element 6276848 or 4237084 ×2
  • Pneumatic Switch with Pin Holes, Axle Hole and Stepped Outlets Light Bluish Gray Part 19474 Element 6099773 ×2
  • Pneumatic T-Piece (T Bar) [New Style] Light Bluish Gray Part 4697b Element 4211508 1 spare in the box ×1
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Light Bluish Gray Part 6553 Element 4211536 ×1
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×9
  • Technic Axle 9 Light Bluish Gray Part 60485 Element 4535768 ×1
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×1
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Light Bluish Gray Part 42003 Element 6273724 or 4211779 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×10
  • Technic Axle and Pin Connector Perpendicular Double Split [Reinforced] Light Bluish Gray Part 69819 Element 6349478 ×4
  • 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 ×1
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×4
  • Technic Beam 1 x 3 Thin Light Bluish Gray Part 6632 Element 6360043 or 4211566 ×1
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×4
  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Light Bluish Gray Part 11478 Element 6328063 or 6029206 ×16
  • Technic Beam 1 x 7 Thick Light Bluish Gray Part 32524 Element 4495930 or 4211665 ×2
  • Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin Hole Light Bluish Gray Part 61408 Element 6331859 ×1
  • Technic Beam 5 x 11 with 3 x 5 Opening Frame Thick Light Bluish Gray Part 64178 Element 4540797 ×1
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 3 spares in the box ×24
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 3 spares in the box ×21
  • Technic Crank Disc Light Bluish Gray Part 4368 Element 6452845 ×6
  • Technic Cylinder 4 x 4 with Pin Holes and Centre Bar, Closed Sides on Bar Light Bluish Gray Part 41531 Element 4507052 or 4285324 ×2
  • Technic Engine Crankshaft Light Bluish Gray Part 2853 Element 6640384 or 4211609 ×8
  • Technic Gear 16 Tooth Reinforced [New Style] Light Bluish Gray Part 94925 Element 4640536 ×1
  • Technic Gear 28 Tooth Double Bevel Light Bluish Gray Part 46372 Element 6259270 ×1
  • Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface Light Bluish Gray Part 24119 Element 6257136 ×1
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 4 spares in the box ×35
  • Technic Pin Connector Hub Perpendicular 3L with 2 Pins Light Bluish Gray Part 2393 Element 6408168 ×6
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins (Squared Holes) Light Bluish Gray Part 65489 Element 6282158 ×3
  • Technic Pin Connector Hub with 1 Axle Light Bluish Gray Part 22961 Element 6123815 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Light Bluish Gray Part 65487 Element 6282142 ×5
  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] Light Bluish Gray Part 44874 Element 6321303 ×2
  • Technic Pin Connector Perpendicular 2 x 2 Bent Light Bluish Gray Part 44809 Element 4211880 ×1
  • Technic Pin Connector Round 1L [Beam] Light Bluish Gray Part 18654 Element 6183784 1 spare in the box ×1
  • Technic Pin Long 3l with Stop and Hole Light Bluish Gray Part 77765 Element 6338962 ×7
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] Light Bluish Gray Part 65304 Element 6321747 ×13
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2
  • Technic Steering / CV Ball Joint Male 3L Light Bluish Gray Part 52731 Element 6262968 ×1
  • Technic Steering / CV Ball Joint, Cardan Ball with Cross Hole 3L Light Bluish Gray Part 77590 Element 6338424 ×1
  • Technic Turntable Large Type 3 Base Light Bluish Gray Part 18939 Element 6109285 ×1
  • Technic Wedge Belt Wheel [aka Pulley] Light Bluish Gray Part 4185 Element 6321743 or 4494222 ×4
  • Technic Worm Gear Type 2 Light Bluish Gray Part 32905 Element 6185471 ×1
  • Tile Round Corners 4 x 4 x 2/3 Light Bluish Gray Part 68869 Element 6354325 ×1
  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55982 Element 4490127 ×6
  • Wheel 30 x 14 Light Bluish Gray Part 56904 Element 4541318 ×6

Dark Bluish Gray 180 pieces

  • Bar 2L with Towball Dark Bluish Gray Part 22484 Element 6364352 or 6360117 ×2
  • Chain 16L [21 Links] Dark Bluish Gray Part 60169 Element 6258887 or 4516456 ×2
  • Pneumatic Cylinder 2 x 11 with 2 Stepped Inlets [V2] Dark Bluish Gray Part 19478 Element 6383181 ×2
  • Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×2
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×11
  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×1
  • Technic Axle 8 with Stop Dark Bluish Gray Part 55013 Element 4499858 ×6
  • Technic Axle Connector Smooth [with x Hole + Orientation] Dark Bluish Gray Part 59443 Element 6084613 or 4516546 Also in Black ×3
  • Technic Axle and Pin Connector Angled #1 Dark Bluish Gray Part 32013 Element 32013199 or 6296856 Also in Black ×2
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Dark Bluish Gray Part 42003 Element 6273715 or 4210857 Also in Black ×2
  • Technic Axle and Pin Connector Perpendicular Double Dark Bluish Gray Part 32291 Element 6280395 or 4210655 ×7
  • Technic Beam 1 x 11 Thick Dark Bluish Gray Part 32525 Element 4603472 or 4534914 Also in Black ×3
  • Technic Beam 1 x 11.5 Double Bent Thick Dark Bluish Gray Part 32009 Element 6271155 or 4210668 ×6
  • Technic Beam 1 x 13 Thick Dark Bluish Gray Part 41239 Element 4522937 or 4261932 ×3
  • Technic Beam 1 x 15 Thick Dark Bluish Gray Part 32278 Element 32278199 or 4542576 Also in Black ×6
  • Technic Beam 1 x 2 Thick Dark Bluish Gray Part 43857 Element 6325983 or 6179631 Also in Black ×6
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Dark Bluish Gray Part 60483 Element 6265093 or 6006141 Also in Black ×5
  • Technic Beam 1 x 2 Thin Dark Bluish Gray Part 41677 Element 6338422 or 4210980 Also in Black ×12
  • Technic Beam 1 x 3 Thick Dark Bluish Gray Part 32523 Element 32523199 or 4210751 Also in Black ×16
  • Technic Beam 1 x 4 Thin Dark Bluish Gray Part 32449 Element 6327561 or 4210749 Also in Black ×8
  • Technic Beam 1 x 5 Thick Dark Bluish Gray Part 32316 Element 32316199 or 4210686 Also in Black ×7
  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Dark Bluish Gray Part 11478 Element 6370946 or 6029951 Also in Black ×4
  • Technic Beam 1 x 7 Thick Dark Bluish Gray Part 32524 Element 4495931 or 4210752 Also in Black ×3
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Dark Bluish Gray Part 32271 Element 6276837 or 4281516 Also in Black ×2
  • Technic Beam 1 x 9 Thick Dark Bluish Gray Part 40490 Element 4645730 or 4210757 Also in Black ×6
  • Technic Beam 3 x 3 L-Shape Thin Dark Bluish Gray Part 32056 Element 6271814 or 4210659 ×6
  • Technic Beam 3 x 3 T-Shape Thick Dark Bluish Gray Part 60484 Element 4552349 or 4535773 Also in Black ×1
  • Technic Beam 3 x 5 L-Shape Thick Dark Bluish Gray Part 32526 Element 4210753 Also in Black ×9
  • Technic Beam Frame 3 x 19 with 2 Center Cross Beams, 3 Openings Thick Dark Bluish Gray Part 67491 Element 6396964 ×4
  • Technic Digger Bucket 4 x 7 Dark Bluish Gray Part 24120 Element 6471569 or 6325981 ×2
  • Technic Gear 8 Tooth [Reinforced] Dark Bluish Gray Part 10928 Element 6631413 or 6012451 ×1
  • 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 Panel 3 x 11 x 1 Dark Bluish Gray Part 15458 Element 6127205 Also in Black ×3
  • Technic Panel Curved and Bent 6 x 3 Dark Bluish Gray Part 24116 Element 6268008 or 6133243 ×3
  • Technic Pin Connector Hub with 2 Axles Dark Bluish Gray Part 27940 Element 6167281 ×13
  • Technic Pin Connector Round 1L [Beam] Dark Bluish Gray Part 18654 Element 6100030 1 spare in the box Also in Black ×6
  • Technic Steering / CV Ball Joint Female with 3L Axle Dark Bluish Gray Part 52730 Element 6261793 ×2
  • Technic Wedge Belt Wheel [aka Pulley] Dark Bluish Gray Part 4185 Element 6321744 or 4587275 ×2

Red 135 pieces

  • Technic Axle 10 Red Part 3737 Element 6130005 or 4267858 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×45
  • Technic Axle 4 Red Part 3705 Element 6129995 or 4265797 ×7
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Red Part 11214 Element 6209519 ×41
  • Technic Axle and Pin Connector Perpendicular Double Red Part 32291 Element 6280393 or 4241474 ×6
  • Technic Beam 1 x 15 Thick Red Part 32278 Element 4542575 or 4163147 ×2
  • Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Red Part 60483 Element 6390264 ×2
  • Technic Beam 2 x 4 L-Shape Thick Red Part 32140 Element 6271827 or 4141270 ×6
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×1
  • Technic Pin 1/2 with Friction Red Part 89678 Element 6378120 2 spares in the box ×15
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Red Part 65487 Element 6334505 ×4
  • Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole Red Part 66906 Element 6360104 ×5

Yellow 104 pieces

  • Technic Axle 11 Yellow Part 23948 Element 6130012 ×4
  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×26
  • Technic Axle 7 Yellow Part 44294 Element 6130009 ×6
  • Technic Axle Connector Smooth [with x Hole + Orientation] Yellow Part 59443 Element 4519010 ×5
  • Technic Axle and Pin Connector Perpendicular Yellow Part 6536 Element 6261367 or 4173666 ×5
  • Technic Beam 1 x 2 Thick Yellow Part 43857 Element 4187122 ×1
  • Technic Beam 1 x 2 Thin Yellow Part 41677 Element 6431477 ×8
  • Technic Beam 1 x 3 Thick Yellow Part 32523 Element 4153707 ×1
  • Technic Beam 1 x 5 Thick Yellow Part 32316 Element 4142133 or 4128590 ×2
  • Technic Beam 1 x 5 Thin Yellow Part 32017 Element 4503425 or 4199343 ×6
  • Technic Beam 1 x 6 Thin Yellow Part 32063 Element 6170294 or 6063252 ×4
  • Technic Beam 1 x 9 Thick Yellow Part 40490 Element 6115616 or 4187136 ×3
  • Technic Beam 2 x 4 L-Shape Thick Yellow Part 32140 Element 6271828 or 4141628 ×2
  • Technic Beam 3 x 5 L-Shape Thick Yellow Part 32526 Element 4144022 ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×3
  • Technic Panel 3 x 11 x 1 Yellow Part 15458 Element 6143847 ×4
  • Technic Panel 3 x 7 x 1 Yellow Part 71709 Element 6334490 ×2
  • Technic Panel 5 x 11 x 1 Yellow Part 64782 Element 6311003 or 6038636 ×1
  • Technic Panel Fairing #8 3L Very Small Smooth, Side B Yellow Part 2389 Element 6513879 or 6430392 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Yellow Part 65487 Element 6282151 ×5
  • Technic Pin Connector Round [Slotted] Yellow Part 62462 Element 6173122 or 4526983 ×7
  • Technic Piston Yellow Part 4369 Element 6452846 ×6

White 93 pieces

  • Plate Special 1 x 2 with Pin Hole Underneath White Part 18677 Element 6232029 ×8
  • Technic Axle Connector with Axle Hole [Reinforced] White Part 42135 Element 6375684 ×4
  • Technic Axle Pin 3L without Friction Ridges and 2L Axle White Part 65249 Element 6289797 ×2
  • Technic Axle and Pin Connector Perpendicular White Part 6536 Element 6261372 or 4173670 ×9
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes White Part 42003 Element 6330960 or 6254109 ×2
  • Technic Beam 1 x 11 Thick White Part 32525 Element 6028103 or 4296265 ×6
  • Technic Beam 1 x 2 Thick White Part 43857 Element 6215107 or 4227695 ×4
  • Technic Beam 1 x 3 Thick White Part 32523 Element 6632140 or 4208160 ×2
  • Technic Beam 1 x 5 Thick White Part 32316 Element 4249021 or 4140465 ×2
  • Technic Beam 1 x 6 Thin White Part 32063 Element 6345239 or 6170574 ×6
  • Technic Beam 1 x 7 Thick White Part 32524 Element 6564912 or 6318056 ×8
  • Technic Beam 1 x 7 Thin White Part 32065 Element 6271584 or 6176554 ×1
  • Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick White Part 71708 Element 6345327 ×4
  • Technic Beam 2 x 4 L-Shape Thick White Part 32140 Element 6271824 or 4118980 ×4
  • Technic Beam 3 x 3 T-Shape Thick White Part 60484 Element 6632149 or 6402262 ×2
  • Technic Beam 3 x 5 L-Shape Thick White Part 32526 Element 6632144 or 4585040 ×2
  • Technic Beam 3 x 5 L-Shape Thick with Alternating Holes White Part 2477 Element 6632151 or 6439225 ×1
  • Technic Panel 3 x 11 x 1 White Part 15458 Element 6055627 ×1
  • Technic Panel 3 x 7 x 1 White Part 71709 Element 6345328 ×3
  • Technic Panel 5 x 11 x 1 White Part 64782 Element 6004135 or 4580019 ×2
  • Technic Panel Fairing #10 Medium Triangle Smooth White Part 2403 Element 6513890 or 6485964 ×1
  • Technic Panel Fairing #21 5L Small Smooth, Side B White Part 11946 Element 6330084 or 6114580 ×2
  • Technic Panel Fairing #22 5L Small Smooth, Side A White Part 11947 Element 6343987 or 6114583 ×2
  • Technic Panel Fairing #7 3L Very Small Smooth, Side A White Part 2387 Element 6511002 or 6509541 Also in Trans-Clear ×1
  • Technic Panel Fairing #8 3L Very Small Smooth, Side B White Part 2389 Element 6513886 or 6509542 Also in Trans-Clear ×1
  • Technic Panel Fairing #9 Medium Triangle Smooth White Part 2395 Element 6513888 or 6485965 ×1
  • Technic Panel Fairing 2 x 1 x 1 White Part 89679 Element 6434569 ×2
  • Technic Pin Connector Hub with 1 Axle White Part 22961 Element 6179606 ×4
  • Tile 1 x 3 White Part 63864 Element 6552134 or 6548270 ×2
  • Tile 2 x 3 White Part 26603 Element 6552162 or 6550161 ×4

Tan 30 pieces

  • Technic Axle 4 with Centre Stop Tan Part 99008 Element 4666999 ×3
  • 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 ×3
  • Technic Pin 3/4 Tan Part 32002 Element 6663097 or 6013938 2 spares in the box ×9
  • Technic Pin Long without Friction Ridges, with Anti-Roll Notch Tan Part 39888 Element 6321305 ×11

Orange 19 pieces

  • Axle Hose, Soft 7L Orange Part 32580 Element 6474926 or 6326051 ×1
  • Bar 6L with Stop Ring Orange Part 63965 Element 6472965 ×1
  • Hose Rigid 3mm D. 11L / 8.8cm Orange Part 75c11 Element 6474844 1 spare in the box ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Orange Part 59443 Element 6143028 ×5
  • Technic Axle and Pin Connector Angled #1 Orange Part 32013 Element 6332584 or 6135091 ×1
  • Technic Axle and Pin Connector Angled #3 - 157.5° Orange Part 32016 Element 6366185 or 6251180 ×1
  • Technic Axle and Pin Connector Angled #5 - 112.5° Orange Part 32015 Element 6474845 or 6286424 ×1
  • Technic Axle and Pin Connector Angled #6 - 90° Orange Part 32014 Element 6390383 or 4163609 ×2
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Orange Part 65487 Element 6390390 ×4
  • Technic Pin Connector Round 1L [Beam] Orange Part 18654 Element 6390380 1 spare in the box ×2

Reddish Brown 18 pieces

  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×13
  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×5

Trans-Clear 15 pieces

  • Technic Panel Fairing #7 3L Very Small Smooth, Side A Trans-Clear Part 2387 Element 6510993 Also in White ×1
  • Technic Panel Fairing #8 3L Very Small Smooth, Side B Trans-Clear Part 2389 Element 6513876 or 6426596 Also in White ×1
  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 2 spares in the box ×13

Trans-Orange 9 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×2
  • Tile Round 1 x 1 Trans-Orange Part 98138 Element 6514197 or 6274747 2 spares in the box ×7

Trans-Red 4 pieces

  • Tile Round 1 x 1 Trans-Red Part 98138 Element 6514189 or 6258607 1 spare in the box ×4

Dark Azure 1 piece

  • Technic Gear 20 Tooth with Axle Hole [+ Opening] Dark Azure Part 69779 Element 6396480 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 42175-1 [No Color/Any Color] Part 10105331 Element 6462844 ×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.