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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.

Mobile Crane

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8421 Mobile Crane

1,885 pieces in 201 part and color combinations.

LEGO counts 1,884 pieces. This inventory comes from a separate parts catalog and lists 1,885; 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.

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

Black 660 pieces

  • Hook, Technic - Large Black Part 70496 Element 70644 ×1
  • Hose, Pneumatic 4mm D. 16L Black Part 5102c16 Element 6390589 or 6352209 ×1
  • Large Figure Skeletal, Limb 1 x 3 x 7 Beam with Axle Holes (Bohrok) Black Part 41672 Element 4163139 ×2
  • Motor, RC Race Buggy Black Part 42908 Element 4177239 ×1
  • Plate 1 x 10 Black Part 4477 Element 447726 ×2
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×3
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×3
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Black Part 2444 Element 244426 ×2
  • String Cord Medium Thickness 250cm Black Part 14728c250 Element 6043668 ×1
  • String with End Studs 31L Overall Black Part 14226c31 Element 6510782 or 6096956 ×2
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Black Part 6553 Element 4107765 or 655326 ×2
  • Technic Axle 10 Black Part 3737 Element 373726 ×5
  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle 32 Black Part 50450 Element 6210821 or 4233937 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×34
  • Technic Axle 6 Black Part 3706 Element 370626 ×5
  • Technic Axle 8 Black Part 3707 Element 370726 ×7
  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×15
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×2
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×1
  • 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 ×2
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×2
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 Also in Dark Bluish Gray ×17
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×28
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×2
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 13 Thick Black Part 41239 Element 4522933 or 4164422 ×14
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×6
  • 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 Also in Dark Bluish Gray ×2
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×1
  • 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 ×3
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 Also in Dark Bluish Gray ×2
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 Also in Dark Bluish Gray ×2
  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin / Crank Black Part 33299a Element 4156980 ×4
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×8
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Black Part 32250 Element 6327162 or 4128557 ×6
  • Technic Beam 5 x 7 L-Shape with Quarter Ellipse Thin Black Part 32251 Element 4240081 or 4141517 ×4
  • Technic Beam Triangle Thin [Type I] Black Part 2905 Element 4142543 or 290526 ×14
  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×2
  • Technic Bush Black Part 3713 Element 6332148 or 6210506 1 spare in the box ×17
  • Technic Gear 36 Tooth Double Bevel Black Part 32498 Element 4255563 or 4177434 ×1
  • Technic Pin Connector Plate with One Hole (Single on Bottom) Black Part 32529 Element 4144023 ×2
  • Technic Pin Connector Round [No Slot] Black Part 75535 Element 75619 ×2
  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×1
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×4
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×158
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×234
  • Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole Black Part 32124 Element 6280168 or 4114689 ×4
  • Technic Wedge Belt Wheel [aka Pulley] Black Part 4185 Element 6323668 or 6192130 ×2
  • Technic Worm Gear Black Part 4716 Element 6037533 or 471626 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×1
  • Tyre 62.4 x 20 Black Part 32019 Element 6411639 or 4547373 ×8
  • Wheel Spoked 2 x 2 with Pin Hole Black Part 30155 Element 4156948 ×2
  • Wire with Brick 2 x 2 x 2/3 Pair, 20L Black Part 5306bc020 Element 4100355 ×1

Light Bluish Gray 573 pieces

  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×6
  • Pneumatic T-Piece (T Bar) [New Style] Light Bluish Gray Part 4697b Element 4211508 1 spare in the box ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×55
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×40
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×30
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Bluish Gray Part 6538b Element 4211543 ×27
  • Technic Axle and Pin Connector Angled #1 Light Bluish Gray Part 32013 Element 6296859 or 4211550 ×8
  • Technic Axle and Pin Connector Angled #2 - 180° Light Bluish Gray Part 32034 Element 6346487 or 4211567 ×2
  • Technic Axle and Pin Connector Perpendicular Light Bluish Gray Part 6536 Element 6261375 or 4211775 ×18
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Light Bluish Gray Part 42003 Element 6273724 or 4211779 ×19
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Bluish Gray Part 32184 Element 6276969 or 4211621 ×7
  • Technic Beam 1 x 11 Thick Light Bluish Gray Part 32525 Element 4611705 or 4534910 ×6
  • Technic Beam 1 x 13 Thick Light Bluish Gray Part 41239 Element 4522934 or 4156299 ×2
  • Technic Beam 1 x 15 Thick Light Bluish Gray Part 32278 Element 4542577 or 4211770 1 spare in the box ×19
  • Technic Beam 1 x 2 Thick Light Bluish Gray Part 43857 Element 4211862 ×1
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×4
  • Technic Beam 1 x 3 Thick Light Bluish Gray Part 32523 Element 4211655 ×2
  • Technic Beam 1 x 3 Thin Light Bluish Gray Part 6632 Element 6360043 or 4211566 ×15
  • Technic Beam 1 x 4 Thin Light Bluish Gray Part 32449 Element 6370947 or 6074036 ×17
  • Technic Beam 1 x 5 Thick Light Bluish Gray Part 32316 Element 4211651 ×24
  • Technic Beam 1 x 5 Thin Light Bluish Gray Part 32017 Element 4503416 or 4211554 ×2
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Light Bluish Gray Part 32348 Element 6278129 or 4211668 ×2
  • Technic Beam 1 x 7 Thick Light Bluish Gray Part 32524 Element 4495930 or 4211665 ×29
  • Technic Beam 1 x 9 Thick Light Bluish Gray Part 40490 Element 6102449 or 4211866 ×1
  • Technic Beam 3 x 5 L-Shape Thick Light Bluish Gray Part 32526 Element 4211713 ×11
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 3 spares in the box ×52
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 4 spares in the box ×30
  • Technic Engine Connecting Rod Light Bluish Gray Part 2852 Element 6000018 or 4655728 ×6
  • Technic Engine Crankshaft Light Bluish Gray Part 2853 Element 6640384 or 4211609 ×2
  • Technic Engine Cylinder with Side Slots Light Bluish Gray Part 2850a ×6
  • Technic Gear 12 Tooth Bevel Light Bluish Gray Part 6589 Element 6589194 or 4565450 ×5
  • Technic Gear 12 Tooth Double Bevel Light Bluish Gray Part 32270 Element 32270194 or 4211634 ×5
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Bluish Gray Part 4019 Element 4562487 or 4211563 ×8
  • Technic Gear 20 Tooth Bevel Light Bluish Gray Part 32198 Element 6359714 or 6031956 ×1
  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 2 [X Opening] Light Bluish Gray Part 32269 Element 32269194 or 4211635 ×5
  • Technic Gear 24 Tooth Crown with Reinforcements [New Style] Light Bluish Gray Part 3650c Element 4211434 ×1
  • Technic Gear 24 Tooth [New Style with Single Axle Hole] Light Bluish Gray Part 3648b Element 4211565 ×1
  • Technic Gear 8 Tooth Light Bluish Gray Part 3647 Element 4211432 or 3647194 ×11
  • Technic Gear Rack 1 x 4 Light Bluish Gray Part 3743 Element 6457283 or 4211450 ×9
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 3 spares in the box ×20
  • Technic Pin Connector Block 1 x 5 x 3 Light Bluish Gray Part 32333 Element 6271360 or 4205761 ×2
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins Light Bluish Gray Part 48989 Element 4225033 ×14
  • Technic Pin Double with Axle Hole Light Bluish Gray Part 32138 Element 4211888 ×3
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Bluish Gray Part 32054 Element 4211865 ×17
  • Technic Pin Long without Friction Ridges - Single Slot Light Bluish Gray Part 32556a Element 4211709 ×13
  • Technic Steering Wheel Small (3 Studs Diameter) Light Bluish Gray Part 2819 Element 4580510 or 4211578 ×1
  • Technic Wedge Belt Wheel [aka Pulley] Light Bluish Gray Part 4185 Element 6321743 or 4494222 ×3
  • 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 ×8

Yellow 327 pieces

  • Battery Box, 9V 4 x 14 x 4 with Dark Bluish Gray Base [Complete Assembly] Yellow Part 2847c03 ×1
  • Brick 2 x 6 Yellow Part 2456 Element 4181143 or 245624 ×4
  • Brick Wedged, Angled 4 x 2 Left Yellow Part 41768 Element 4160348 ×4
  • Brick Wedged, Angled 4 x 2 Right Yellow Part 41767 Element 4160333 ×4
  • Grille 1 x 4 [Two Pins] Yellow Part 30622 Element 4153120 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×13
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×6
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×16
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×10
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×6
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×3
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×2
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Yellow Part 3794a ×2
  • Plate Special 2 x 2 with 2 Pin Holes Yellow Part 2817 Element 4219766 or 4107088 ×1
  • Pneumatic Cylinder Bracket Yellow Part 53178 Element 4267463 ×2
  • Pneumatic Cylinder with 2 Inlets and Rounded End Medium (48mm) Yellow Part 47225 Element 4563144 or 4205293 ×2
  • Pneumatic Pump New Style with Black Top Yellow Part 2797c02 Element 4563134 or 74720 ×1
  • Technic Axle Connector with Axle Hole Yellow Part 32039 Element 4107800 or 3203924 ×6
  • Technic Axle and Pin Connector Angled #1 Yellow Part 32013 Element 6329889 or 4107066 ×12
  • Technic Axle and Pin Connector Perpendicular Yellow Part 6536 Element 6261367 or 4173666 ×34
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Yellow Part 42003 Element 6273711 or 4200324 ×3
  • Technic Axle and Pin Connector Perpendicular Double Split Yellow Part 41678 Element 4187125 ×2
  • Technic Beam 1 x 11 Thick Yellow Part 32525 Element 6028107 or 4534912 ×3
  • Technic Beam 1 x 11.5 Double Bent Thick Yellow Part 32009 Element 6271150 or 6257104 ×1
  • Technic Beam 1 x 13 Thick Yellow Part 41239 Element 4522935 or 4237328 ×7
  • Technic Beam 1 x 15 Thick Yellow Part 32278 Element 4542579 or 4237445 ×8
  • Technic Beam 1 x 2 Thick Yellow Part 43857 Element 4187122 ×2
  • Technic Beam 1 x 3 Thick Yellow Part 32523 Element 4153707 ×7
  • Technic Beam 1 x 3 Thin Yellow Part 6632 Element 6344174 or 4107823 ×2
  • Technic Beam 1 x 4 Thin Yellow Part 32449 Element 6327559 or 4199345 ×4
  • Technic Beam 1 x 5 Thick Yellow Part 32316 Element 4142133 or 4128590 ×18
  • Technic Beam 1 x 7 Thick Yellow Part 32524 Element 4495934 or 4187082 ×10
  • Technic Beam 1 x 7 Thin Yellow Part 32065 Element 4114672 ×1
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Yellow Part 6629 Element 6524459 or 6375945 ×3
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Yellow Part 32271 Element 6276838 or 4544005 ×3
  • Technic Beam 1 x 9 Thick Yellow Part 40490 Element 6115616 or 4187136 ×4
  • Technic Beam 2 x 4 L-Shape Thick Yellow Part 32140 Element 6271828 or 4141628 ×6
  • Technic Beam 3 x 5 L-Shape Thick Yellow Part 32526 Element 4144022 ×4
  • Technic Brick 1 x 1 with Pin Hole Yellow Part 6541 Element 654124 ×2
  • Technic Brick 1 x 14 [13 Pin Holes] Yellow Part 32018 Element 4655571 or 4544376 ×5
  • Technic Brick 1 x 16 [15 Pin Holes] Yellow Part 3703 Element 370324 ×16
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Yellow Part 32064b ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Yellow Part 3701 Element 370124 ×4
  • Technic Brick 1 x 6 [5 Pin Holes] Yellow Part 3894 Element 389424 ×4
  • Technic Brick 1 x 8 [7 Pin Holes] Yellow Part 3702 Element 370224 ×4
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×4
  • Technic Engine Piston Round Yellow Part 2851 Element 4112203 or 285124 ×6
  • Technic Knob Wheel Yellow Part 32072 Element 6284189 or 4203493 ×4
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Yellow Part 32054 Element 4140805 or 4121613 ×29
  • Technic Slope Long 1 x 6 with 3 Pin Holes Yellow Part 2744 Element 4547043 or 4190417 ×6
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×4
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×2
  • Tile 1 x 8 with Groove Yellow Part 4162 Element 6388482 or 4189400 ×14

Dark Bluish Gray 135 pieces

  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×4
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×2
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×2
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 ×8
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 ×1
  • Plate 4 x 8 Dark Bluish Gray Part 3035 Element 4211061 ×1
  • Pneumatic Switch with Pin Holes Dark Bluish Gray Part 47223a Element 4237158 ×1
  • Technic Axle 3 with Stud Dark Bluish Gray Part 6587 Element 6587199 or 6129590 ×1
  • Technic Axle 5.5 with Stop [Flat Short End] Dark Bluish Gray Part 32209 Element 4263624 ×15
  • Technic Axle and Pin Connector Perpendicular Dark Bluish Gray Part 6536 Element 6536199 or 6261374 Also in Black ×8
  • Technic Beam 1 x 11.5 Double Bent Thick Dark Bluish Gray Part 32009 Element 6271155 or 4210668 Also in Black ×8
  • Technic Beam 1 x 2 Thin Dark Bluish Gray Part 41677 Element 6338422 or 4210980 Also in Black ×6
  • Technic Beam 1 x 3 Thick Dark Bluish Gray Part 32523 Element 32523199 or 4210751 ×12
  • Technic Beam 1 x 9 Thick Dark Bluish Gray Part 40490 Element 4645730 or 4210757 Also in Black ×11
  • Technic Beam 2 x 4 L-Shape Thick Dark Bluish Gray Part 32140 Element 6271830 or 4210667 Also in Black ×32
  • Technic Brick 1 x 16 [15 Pin Holes] Dark Bluish Gray Part 3703 Element 4256828 ×2
  • Technic Engine Crankshaft Center Dark Bluish Gray Part 2854 Element 6007058 or 4210987 ×2
  • Technic Gear 16 Tooth with Clutch [Toothed] Dark Bluish Gray Part 6542a ×5
  • 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 3 spares in the box ×12
  • Technic Turntable Large Type 2, 24/56 Tooth with Black Outside Gear Section [Complete Assembly] Dark Bluish Gray Part 50163 Element 4520872 or 4235858 ×1

Blue 132 pieces

  • Hose, Pneumatic 4mm D. 16L Blue Part 5102c16 ×1
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×106
  • Technic Beam 1 x 2 Thick Blue Part 43857 Element 6057802 or 4185665 ×2
  • Technic Beam 2 x 4 L-Shape Thick Blue Part 32140 Element 6271829 or 4168114 ×3
  • Technic Beam 3 x 3 L-Shape Thin Blue Part 32056 Element 6344048 or 6231880 ×14
  • Technic Beam 3 x 5 L-Shape Thick Blue Part 32526 Element 4158923 ×6

Red 38 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×24
  • Technic Beam 1 x 2 Thin Red Part 41677 Element 6371442 or 4186678 ×12
  • Technic Changeover Catch - + opening Red Part 6641 Element 6099696 or 4270473 ×1
  • Technic Driving Ring 2L, 4 Ridges Red Part 6539 Element 4278957 ×1

Trans-Neon Orange 7 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Neon Orange Part 3941 Element 6273156 or 611647 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 2 spares in the box ×4

Trans-Clear 6 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 2 spares in the box ×6

Tan 2 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×2

Trans-Red 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×2

White 2 pieces

  • Technic Gear 24 Tooth Clutch with Dark Bluish Gray Center White Part 76244 Element 6198486 or 6036892 ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 8421-1 [No Color/Any Color] Part 53535 Element 4272325 ×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.

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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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