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Underground Mining Station

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8709 Underground Mining Station

619 pieces in 182 part and color combinations, plus 4 minifigures.

LEGO counts 637 pieces. This inventory comes from a separate parts catalog and lists 636, including the 17 parts inside the minifigures; 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

Bricks Sloped 69 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box Also in Dark Bluish Gray ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box Also in Black ×2
  • Brick Sloped 45° 2 x 2 Dark Bluish Gray Part 3039 Element 4211054 ×4
  • Brick Sloped 45° 2 x 2 Double Concave Dark Bluish Gray Part 3046a Element 6477380 or 4210702 ×4
  • Brick Sloped 45° 2 x 2 Double Convex Dark Bluish Gray Part 3045 Element 4210646 ×1
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Dark Bluish Gray Part 3678b Element 4234534 or 4210760 ×2
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Dark Bluish Gray Part 3684 Element 4286876 or 4210696 ×7
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Dark Bluish Gray Part 3747b Element 4211064 ×2
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×2
  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Light Bluish Gray Part 3678b Element 4234535 or 4215353 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Lime Part 61409 Element 6370977 or 4540385 ×7
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 1 spare in the box ×5
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Lime Part 3684 Element 4537923 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Lime Part 3660 Element 4529679 or 4212708 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Orange Part 54200 Element 4504371 or 4248195 1 spare in the box ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Trans-Neon Green Part 3040b Element 4544094 or 4140733 ×10
  • Brick Sloped 45° 2 x 2 with Aircraft Multiple Flight Controls Print White Part 3039pr0013 Element 6032098 or 6016723 ×1
  • Brick Sloped 45° 2 x 2 with Green Radar, Green/Red Buttons and Disk Slot Print White Part 3039pr0002 Element 4195659 ×1

Technic Pins 69 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×29
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×12
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×6
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×8
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×8
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×6

Plates 62 pieces

  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×11
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×6
  • Plate 4 x 10 Dark Bluish Gray Part 3030 Element 4211122 ×1
  • Plate 6 x 16 Dark Bluish Gray Part 3027 Element 4226358 ×4
  • Plate 6 x 8 Dark Bluish Gray Part 3036 Element 4210794 ×1
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×1
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×6
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×1
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×13
  • Plate 1 x 6 Lime Part 3666 Element 4534665 or 4529160 ×2
  • Plate 2 x 4 Lime Part 3020 Element 4537936 or 4534667 ×1
  • Plate 4 x 4 Lime Part 3031 Element 4504850 or 4160080 ×3
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×4
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×3

Tiles 60 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×9
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 Also in Dark Bluish Gray ×8
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 Also in Black ×4
  • Tile 1 x 2 with Red 82, Yellow and White Gauges Print Light Bluish Gray Part 3069bpr0101 Element 4227776 ×1
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×3
  • Tile 1 x 2 with Groove Lime Part 3069b Element 4500125 or 4164025 ×32
  • Tile 1 x 4 with Groove Lime Part 2431 Element 4164021 ×2
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×1

Plates Special 47 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Black Part 2436 Element 4282746 or 243626 ×4
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×5
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 Also in Dark Bluish Gray ×5
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×2
  • Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] Black Part 60470a Element 4537901 ×1
  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×2
  • Plate Special 2 x 2 with Towball Black Part 3729 Element 4124111 or 4107856 ×4
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 Also in Black ×2
  • Plate Special 1 x 2 with Ladder Dark Bluish Gray Part 4175 Element 6285244 or 6179567 ×2
  • Plate Special 8 x 8 with Grille [Hole in Center] Dark Bluish Gray Part 4151b Element 6471953 or 4299022 ×2
  • Technic Plate 2 x 8 [7 Holes] Dark Bluish Gray Part 3738 Element 4260707 ×2
  • Wedge Plate 8 x 6 x 2/3 with Grille Dark Bluish Gray Part 30036 Element 4527144 ×1
  • Bracket 1 x 2 - 2 x 2 Light Bluish Gray Part 44728 Element 6117967 or 6009014 ×4
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Light Bluish Gray Part 4085c Element 4211479 ×4
  • Plate Special 1 x 2 [Side Handle Closed Ends] Light Bluish Gray Part 48336 Element 4244627 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×4

Plates Round Curved and Dishes 34 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×4
  • Plate Round 4 x 4 with Pin Hole Black Part 60474 Element 4515350 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×8
  • Dish 3 x 3 Inverted [Radar] Trans-Clear Part 43898 Element 6507917 or 6244730 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×20

Bars, Ladders and Fences 30 pieces

  • Bar 1 x 4 x 2 Black Part 6187 Element 4141349 or 4121537 ×3
  • Bar 1 x 4 x 2 with Studs Black Part 4083 Element 408326 ×1
  • Bar 1 x 8 with Brick 1 x 2 Curved Top End (Axle Holder Inside Small End) Black Part 30359b Element 4164067 ×2
  • Bar 6L with Stop Ring Black Part 63965 Element 6170421 or 6081988 ×1
  • Fence Lattice 1 x 4 x 2 Black Part 3185 Element 4188953 or 4106485 ×5
  • Antenna 8H Whip Dark Bluish Gray Part 2569 Element 6608939 or 4210642 ×2
  • Bar 7 x 3 [4 Clips] Dark Bluish Gray Part 30095 Element 4667977 or 4234920 ×1
  • Bar 1 x 3 [Clip / Anti-Stud] Light Bluish Gray Part 4735 Element 4211644 ×4
  • Lever Small Base with Black Lever Light Bluish Gray Part 298c02 Element 4221775 1 spare in the box ×5
  • Bar 4L (Lightsaber Blade / Wand) Trans-Neon Green Part 30374 Element 6507881 or 6170186 ×2
  • Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye Trans-Orange Part 58176 Element 6507868 or 6171764 ×4

Technic Connectors 30 pieces

  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×4
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×1
  • Technic Pin Connector Perpendicular 2 x 2 Bent Black Part 44809 Element 6325982 or 4480926 ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Black Part 32530 Element 4144024 ×10
  • Technic Axle Connector Smooth [with x Hole + Orientation] Light Bluish Gray Part 59443 Element 4512360 ×3
  • Technic Axle and Pin Connector Toggle Joint Smooth Light Bluish Gray Part 32126 Element 4211575 ×2
  • Technic Pin Connector Round [Slotted] Orange Part 62462 Element 6173129 or 4538144 ×6
  • Technic Axle and Pin Connector Angled #4 - 135° Red Part 32192 Element 6262898 or 4271646 ×2

Bricks 27 pieces

  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 Also in Dark Bluish Gray ×2
  • Brick 2 x 8 Black Part 3007 Element 6037390 or 300726 ×1
  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×2
  • Brick 1 x 2 x 2 with Inside Axle Holder Dark Bluish Gray Part 3245b ×4
  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 Also in Black ×6
  • Brick 2 x 6 Dark Bluish Gray Part 2456 Element 4282819 or 4210875 ×1
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×7
  • Brick 1 x 4 Lime Part 3010 Element 4234716 or 4122449 ×2
  • Brick 2 x 4 Lime Part 3001 Element 4165967 or 4122453 ×2

Bricks Round and Cones 16 pieces

  • Cone 1 x 1 [Top Groove] Dark Bluish Gray Part 59900 Element 4529240 ×1
  • Cone 2 x 2 x 2, Open Stud Dark Bluish Gray Part 3942c Element 6533790 or 6092666 ×2
  • Brick Round 1 x 1 Open Stud Light Bluish Gray Part 3062b Element 4211412 ×2
  • Brick Round 2 x 2 with Axle Hole Light Bluish Gray Part 3941 Element 4211526 ×4
  • Brick Round 1 x 1 Open Stud Lime Part 3062b Element 4212454 ×4
  • Brick Round 2 x 2 with Axle Hole Lime Part 3941 Element 4527943 or 4279733 ×2
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×1

Minifig Accessories 16 pieces

  • Equipment Radio [Extended Handle, Compact Speaker Grille] Black Part 3962b Element 396226 ×2
  • Equipment Shovel [Rounded Handle End] Black Part 3837 Element 4189009 or 383726 ×1
  • Tap 1 x 1 without Hole in Spout Black Part 4599b Element 459926 1 spare in the box ×4
  • Equipment Barbed Wire Coil Pearl Light Gray Part 62700 Element 4527061 ×4
  • Equipment Dynamite Sticks Red Part 64728 Element 6270088 or 4538780 ×4
  • Tap 1 x 1 without Hole in Spout Yellow Part 4599b Element 4256320 1 spare in the box ×1

Supports, Girders and Cranes 16 pieces

  • Support 1 x 1 x 5 1/3 Spiral Staircase Axle Black Part 40244 Element 4155558 ×4
  • Support 2 x 2 x 10 Girder Triangular Vertical - Type 3 - Axle Hole, 3 Posts Black Part 58827 Element 4509669 ×8
  • Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Black Part 3940b Element 394026 ×3
  • Hook with Towball Dark Bluish Gray Part 30395 Element 30395199 or 6347464 ×1

Tiles Special 16 pieces

  • Tile Special 1 x 1 with Clip with Rounded Tips Black Part 12825 Element 6030718 ×2
  • Tile Special 1 x 1 with Clip with Rounded Tips Light Bluish Gray Part 12825 Element 6030711 ×8
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×6

Windows and Doors 16 pieces

  • Glass for Window 1 x 2 x 2 Flat Trans-Brown Part 60601 Element 6514138 or 6254564 ×8
  • Window 1 x 2 x 2 Flat Front White Part 60592 Element 6550187 or 6382045 ×8

Technic Bricks 14 pieces

  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×2
  • Technic Brick 1 x 14 [13 Pin Holes] Black Part 32018 Element 4107558 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×4
  • Technic Brick 6 x 8 with 4 x 6 Opening Black Part 32532 Element 6448394 or 4188143 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×4
  • Technic Brick 1 x 4 [3 Pin Holes] Dark Bluish Gray Part 3701 Element 4213607 or 370127 ×1

Hinges, Arms and Turntables 12 pieces

  • Hinge Brick 2 x 2 Top Plate Thin Black Part 6134 Element 4124096 or 613426 ×1
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
  • Turntable 4 x 4 Square Base, Locking Black Part 61485 Element 4517986 ×1
  • Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×2
  • Hinge Brick 2 x 2 Top Plate Thin Light Bluish Gray Part 6134 Element 4211881 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Light Bluish Gray Part 44567a Element 4211814 ×3
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Light Bluish Gray Part 44302a Element 4211804 ×2
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×1

Wheels and Tyres 12 pieces

  • Tyre 24 x 14 Shallow Tread (Tread Small Hub) Black Part 30648 Element 4524358 or 4153005 ×4
  • Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Black Part 56145 Element 4299389 or 4284946 ×1
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×2
  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55982 Element 4490127 ×4
  • Wheel Hard Plastic Spoked Giant Thin 160 x 28 Lime Part 59521 Element 4545216 or 4505520 ×1

Bricks Special 11 pieces

  • Brick Special 1 x 2 with Handle Black Part 30236 Element 4288212 or 4113243 ×4
  • Brick Special 2 x 2 with Pin and Axle Hole Dark Bluish Gray Part 6232 Element 6408023 or 4211046 ×2
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×4
  • Brick Special 2 x 2 with 2 Pins and Axle Hole Light Bluish Gray Part 30000 Element 6356172 or 4211752 ×1

Technic Beams 8 pieces

  • Technic Beam 3 x 3 L-Shape with Quarter Ellipse Thin Black Part 32249 Element 6336619 or 4505842 ×2
  • Technic Beam 1 x 3 Thick Light Bluish Gray Part 32523 Element 4211655 ×1
  • Technic Beam 1 x 11 Thick Lime Part 32525 Element 6293920 or 4534911 ×1
  • Technic Beam 1 x 15 Thick Lime Part 32278 Element 6255071 or 4542574 ×2
  • Technic Beam 1 x 3 Thick Lime Part 32523 Element 6170474 or 4265684 ×2

Technic Axles 7 pieces

  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Axle 3 with Stud Dark Bluish Gray Part 6587 Element 6587199 or 6129590 ×3
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×1

Transportation - Land 7 pieces

  • Engine / Air Scoop 2 x 2 Light Bluish Gray Part 50943 Element 4259422 ×2
  • Steering Wheel Small, 2 x 2 Light Bluish Gray Part 30663 Element 30663194 or 4211701 ×2
  • Tipper Bed 4 x 6, Open Studs Lime Part 4080 Element 4537931 ×1
  • Construction Vehicle Bucket 3 x 6, 9 Hinge Teeth Orange Part 30394 Element 4544743 ×1
  • Tipper Bed 4 x 6, Open Studs Orange Part 4080 Element 4538362 ×1

Panels 6 pieces

  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Dark Bluish Gray Part 43337 Element 6092647 or 4267940 ×6

Containers 5 pieces

  • Box 2 x 2 x 2 Door with Slot Light Bluish Gray Part 4346 Element 4211492 ×2
  • Box 2 x 2 x 2 [Hollow Studs] Light Bluish Gray Part 4345b Element 4211491 ×2
  • Box / Crate with Handholds 3 x 4 x 1 2/3 Reddish Brown Part 30150 Element 4211185 ×1

Plants & Trees 4 pieces

  • Plant, Carrot Top Bright Green Part 33183 Element 4119479 ×2
  • Plant, Carrot Orange Part 33172 Element 6424015 or 6103249 ×2

Transportation - Sea and Air 4 pieces

  • Boat, Mast 2 x 2 x 20 with Holes - Side Aligned x shape Axle Hole, + Orientation Black Part 48002a Element 6296839 or 4263506 ×4

Rock 3 pieces

  • Rock 1 x 1 Crystal 5 Point Trans-Dark Blue Part 30385 Element 6507864 or 6236962 ×2
  • Rock 1 x 1 Crystal 5 Point Trans-Neon Green Part 30385 Element 6170290 or 4540417 ×1

String, Bands and Reels 3 pieces

  • String Cord Thin (0.5mm) 50cm Black Part 56823c50 Element 6530026 or 6489925 ×1
  • Technic Reel 3 x 2 Yellow Part 32012 Element 4297401 or 4120070 ×1
  • Technic Rubber Belt Large [33mm ID] [Round Cross Section] Yellow Part 85546 Element 4544151 or 70905 ×1

Tubes and Hoses 3 pieces

  • Hose Rigid 3mm D. 49L / 39.2cm Black Part 75c49 Element 4543996 ×1
  • Hose, Ribbed 7mm D. 14L / 11.2cm Black Part 78c14 Element 6143035 or 4275297 ×2

Bricks Wedged 2 pieces

  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Lime Part 52031 Element 6146890 or 4500755 ×2

Minifig Neckwear 2 pieces

  • Minifig Neckwear Bracket [One Stud] Dark Bluish Gray Part 42446 Element 4210469 ×2

Minifig Upper Body 2 pieces

  • Arm Mechanical with 2 Clips [Battle Droid] Black Part 30377 Element 6330086 or 4223247 1 spare in the box ×2

Plates Wedged 2 pieces

  • Wedge Plate 4 x 4 Cut Corner Dark Bluish Gray Part 30503 Element 4210728 ×2

Minifig Shields, Weapons, & Tools 1 piece

  • Tool Pickaxe Dark Bluish Gray Part 3841 Element 4211007 ×1

Stickers 1 piece

  • Sticker Sheet for Set 8709-1 [No Color/Any Color] Part 85666 Element 4546366 ×1

Technic Gears 1 piece

  • Technic Tread Sprocket Wheel Small 6 Tooth Black Part 57520 Element 4662228 or 4544527 ×1

Technic Special 1 piece

  • Technic Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) Light Bluish Gray Part 32125 Element 4262978 or 4211842 ×1

Minifigures 4 figures

  • Power Miner, Beard Stubble Minifigure, checked as a whole figure ×1
  • Power Miner, Orange Scar Minifigure, checked as a whole figure ×1
  • Rex, Blue Minifigure, checked as a whole figure ×1
  • Geolix with 2 Crystals (Big Fig) Minifigure, checked as a whole figure ×1

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

When a piece really is missing

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