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MISSION MARS Challenge Kit

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9788 MISSION MARS Challenge Kit

1,189 pieces in 152 part and color combinations, plus 4 minifigures.

The piece count includes the 20 parts inside the set's minifigures, which this inventory lists separately. 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.

1 more look-alike pair
  • Tile 1 x 2 with Groove Black ×6 Dark Blue ×8 Black is yellower and darker than Dark Blue.
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Piece checklist

Technic Pins 236 pieces

  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×26
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×104
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×42
  • Technic Pin 3/4 Dark Gray Part 32002 Element 4109854 ×8
  • Technic Pin 1/2 without Friction Ridges Light Gray Part 4274 Element 427402 ×14
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Light Gray Part 32054 Element 4195303 ×26
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×14

Technic Axles 184 pieces

  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×47
  • Technic Axle 4 Black Part 3705 Element 370526 ×29
  • Technic Axle 5.5 with Stop [Flat Short End] Black Part 32209 Element 4124045 ×24
  • Technic Axle 6 Black Part 3706 Element 370626 ×4
  • Technic Axle 8 Black Part 3707 Element 370726 ×2
  • Technic Axle 3 Light Gray Part 4519 Element 4186007 ×21
  • Technic Axle 5 Light Gray Part 32073 Element 4141482 ×17
  • Technic Axle 7 Light Gray Part 44294 Element 4183835 ×38

Technic Connectors 172 pieces

  • Technic Axle Connector Ridged [with x Hole x Orientation] Black Part 6538b Element 4113805 or 4107083 ×24
  • Technic Axle Connector with Axle Hole Black Part 32039 Element 4107081 or 3203926 ×12
  • Technic Axle and Pin Connector Angled #1 Black Part 32013 Element 6284699 or 4107085 ×2
  • Technic Axle and Pin Connector Angled #2 - 180° Black Part 32034 Element 6271869 or 4107783 ×12
  • Technic Axle and Pin Connector Angled #4 - 135° Black Part 32192 Element 6262897 or 4121610 ×2
  • Technic Axle and Pin Connector Angled #6 - 90° Black Part 32014 Element 6268905 or 4107767 ×26
  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×2
  • Technic Axle and Pin Connector Perpendicular Double Black Part 32291 Element 6280394 or 4140430 ×4
  • Technic Axle and Pin Connector Perpendicular Double Split Black Part 41678 Element 4162857 ×1
  • Technic Axle Connector Ridged [with x Hole x Orientation] Light Gray Part 6538b Element 4113804 or 4100408 Also in Pearl Light Gray ×10
  • Technic Axle and Pin Connector Angled #1 Light Gray Part 32013 Element 4106376 Also in Pearl Light Gray ×6
  • Technic Axle and Pin Connector Angled #2 - 180° Light Gray Part 32034 Element 4107830 ×8
  • Technic Axle and Pin Connector Angled #3 - 157.5° Light Gray Part 32016 Element 4106379 ×6
  • Technic Axle and Pin Connector Angled #5 - 112.5° Light Gray Part 32015 Element 4106378 ×2
  • Technic Axle and Pin Connector Angled #6 - 90° Light Gray Part 32014 Element 4143353 or 4106377 ×2
  • Technic Axle and Pin Connector Perpendicular Light Gray Part 6536 Element 4173667 or 653602 Also in Pearl Light Gray ×2
  • Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Light Gray Part 42003 Element 4175440 ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Light Gray Part 32184 Element 4124443 Also in Pearl Light Gray ×2
  • Technic Pin Connector Perpendicular 2 x 2 Bent Light Gray Part 44809 Element 4205017 ×1
  • Technic Axle and Pin Connector Angled #1 Lime Part 32013 Element 6332867 or 6150003 ×1
  • Technic Axle Connector Ridged [with x Hole x Orientation] Pearl Light Gray Part 6538b Element 4177445 or 4177258 Also in Light Gray ×5
  • Technic Axle and Pin Connector Angled #1 Pearl Light Gray Part 32013 Element 4177425 Also in Light Gray ×7
  • Technic Axle and Pin Connector Angled #4 - 135° Pearl Light Gray Part 32192 Element 4169489 ×4
  • Technic Axle and Pin Connector Perpendicular Pearl Light Gray Part 6536 Element 4177420 Also in Light Gray ×2
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Pearl Light Gray Part 32184 Element 4177429 Also in Light Gray ×1
  • Technic Axle and Pin Connector Angled #3 - 157.5° Red Part 32016 Element 6261396 or 6176754 ×6
  • Technic Axle and Pin Connector Angled #4 - 135° Red Part 32192 Element 6262898 or 4271646 ×2
  • Technic Axle Connector with Axle Hole White Part 32039 Element 6310906 or 4144128 ×1
  • Technic Axle and Pin Connector Angled #1 White Part 32013 Element 6332573 or 4118981 ×1
  • Technic Axle Connector Ridged [with x Hole x Orientation] Yellow Part 6538b Element 4140507 ×14
  • Technic Axle and Pin Connector Angled #1 Yellow Part 32013 Element 6329889 or 4107066 ×2

Technic Beams 108 pieces

  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×4
  • Technic Beam 1 x 11.5 Double Bent Thick Black Part 32009 Element 6271152 or 4111998 ×3
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×6
  • Technic Beam 1 x 2 Thin Black Part 41677 Element 6338428 or 4167726 ×6
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×5
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×12
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×10
  • Technic Beam 1 x 5 Thin Black Part 32017 Element 6114935 or 4503423 ×2
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 ×6
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×2
  • Technic Beam 3 x 5 L-Shape Thick Black Part 32526 Element 4142823 or 3252626 ×6
  • Technic Beam 1 x 11.5 Double Bent Thick Dark Gray Part 32009 Element 4141418 ×8
  • Technic Beam 1 x 3 Thick Dark Gray Part 32523 Element 4154759 ×4
  • Technic Beam 1 x 15 Thick Green Part 32278 Element 6418453 or 6210626 ×3
  • Technic Beam 1 x 15 Thick Light Gray Part 32278 Element 4172457 Also in Pearl Light Gray ×6
  • Technic Beam 1 x 9 Thick Light Gray Part 40490 Element 4195406 ×6
  • Technic Beam 1 x 15 Thick Lime Part 32278 Element 6255071 or 4542574 ×3
  • Technic Beam 1 x 15 Thick Pearl Light Gray Part 32278 Element 4200922 Also in Light Gray ×4
  • Technic Beam 1 x 2 Thin Pearl Light Gray Part 41677 Element 4177728 ×4
  • Technic Beam 1 x 3 Thin Pearl Light Gray Part 6632 Element 4287625 or 4169492 ×2
  • Technic Beam 1 x 5 Thick Pearl Light Gray Part 32316 Element 4210591 or 4177433 ×2
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Pearl Light Gray Part 6629 Element 4177422 ×2
  • Technic Beam 2 x 4 L-Shape Thick Pearl Light Gray Part 32140 Element 4192335 ×2

Bricks Sloped 91 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Black Part 4871 Element 4188534 or 487126 ×9
  • Brick Sloped 33° 3 x 1 Red Part 4286 Element 428621 ×2
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×17
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×61

Plates 82 pieces

  • Plate 2 x 10 Black Part 3832 Element 383226 ×17
  • Plate 2 x 6 Black Part 3795 Element 379526 ×4
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 ×4
  • Plate 1 x 4 Dark Blue Part 3710 Element 4502089 or 4177739 ×4
  • Plate 1 x 6 Dark Gray Part 3666 Element 4109987 or 366627 ×6
  • Plate 2 x 12 Dark Gray Part 2445 Element 4112847 or 4112526 ×6
  • Plate 6 x 12 Dark Gray Part 3028 Element 4140489 ×14
  • Plate 1 x 8 Orange Part 3460 Element 6210229 or 4497175 ×14
  • Plate 6 x 8 Red Part 3036 Element 303671 or 303621 ×7
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×1
  • Plate 4 x 6 Tan Part 3032 Element 4114001 ×1
  • Plate 4 x 8 Tan Part 3035 Element 4509897 or 4191103 ×1
  • Plate 6 x 6 Tan Part 3958 Element 4125217 ×1

Tiles 82 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 Also in Dark Blue ×6
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×10
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Tile 1 x 2 with Groove Dark Blue Part 3069b Element 6554190 or 4528488 Also in Black ×8
  • Tile 2 x 2 with Groove Dark Blue Part 3068b Element 4205004 ×43
  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×13

Technic Bricks 66 pieces

  • Technic Brick 1 x 10 [9 Pin Holes] Black Part 2730 Element 273026 ×4
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Black Part 32064a Element 6178922 or 4233487 ×26
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Red Part 32064a Element 6196217 or 4513987 ×8
  • Technic Brick 1 x 1 with Pin Hole Tan Part 6541 Element 4179771 or 654105 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Tan Part 3700 Element 4205107 or 370005 ×1
  • Technic Brick 1 x 1 with Pin Hole White Part 6541 Element 6609542 or 654101 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Yellow Part 32064a Element 6206240 or 4233484 ×24

Bricks 39 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 2 x 10 Black Part 3006 Element 4617860 or 300626 ×12
  • Brick 2 x 6 Black Part 2456 Element 4181144 or 245626 ×3
  • Brick 2 x 8 Black Part 3007 Element 6037390 or 300726 ×4
  • Brick 1 x 1 Dark Orange Part 3005 Element 6254484 or 6000643 ×4
  • Brick 1 x 1 Orange Part 3005 Element 4173805 or 4119645 ×4
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×4
  • Brick 1 x 3 Tan Part 3622 Element 4162465 or 4113920 ×2
  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×1
  • Brick 2 x 2 Tan Part 3003 Element 4114306 or 300305 ×1

Tubes and Hoses 34 pieces

  • Hose, Ribbed 7mm D. 13L / 10.4cm Metallic Silver Part 78c13 Element 4275386 ×2
  • Hose, Ribbed 7mm D. 8L / 6.4cm Metallic Silver Part 78c08 Element 4275383 ×8
  • Hose, Ribbed 7mm D. 10L / 8.0cm Pearl Light Gray Part 78c10 Element 4495210 or 4275395 ×24

Bricks Round and Cones 17 pieces

  • Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole Black Part 6222 Element 6533083 or 4290056 ×3
  • Cone 1 x 1 [No Top Groove] Black Part 4589 Element 4518219 or 458926 ×1
  • Brick Round 2 x 2 with Axle Hole Trans-Clear Part 3941 Element 6514281 or 6273152 Also in White ×6
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 Also in Trans-Clear ×4
  • Cone 4 x 4 x 2, Axle Hole [Plain] White Part 3943b Element 6108662 or 4288051 ×3

Technic Bushes 17 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×3
  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Gray Part 32123a ×10
  • Technic Bush White Part 3713 Element 4207525 or 4198121 ×4

Tiles Special 9 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Green Part 2412b Element 4568993 or 4519978 ×9

Bricks Wedged 8 pieces

  • Brick Wedged, Angled 4 x 2 Left Green Part 41768 Element 4621942 or 4160351 ×2
  • Brick Wedged, Angled 4 x 2 Right Green Part 41767 Element 4621941 or 4160336 ×2
  • Brick Wedged, Angled 4 x 2 Left Lime Part 41768 Element 6208286 or 4166241 ×2
  • Brick Wedged, Angled 4 x 2 Right Lime Part 41767 Element 6208290 or 4166240 ×2

Magnets and Holders 8 pieces

  • Magnet Cylindrical Black Part 73092 Element 73092 ×8

Rock 8 pieces

  • Rock Boulder 4 x 4, Bottom Brown Part 30294 Element 4164156 or 4164088 ×4
  • Rock Boulder 4 x 4, Top Brown Part 30293 Element 4168208 or 4142848 ×4

Bricks Special 6 pieces

  • Brick Special 1 x 1 with Handle Tan Part 2921 Element 6170568 or 4185259 ×2
  • Brick Special 1 x 2 with Pin Tan Part 2458 Element 4205105 or 4125270 ×2
  • Brick Special 2 x 2 with Pin and Axle Hole Tan Part 6232 Element 6347700 or 4185273 ×2

Plates Round Curved and Dishes 6 pieces

  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×1
  • Dish 3 x 3 Inverted [Radar] Tan Part 43898 Element 6189073 or 4514382 ×1
  • Plate Round 1 x 1 with Solid Stud Tan Part 6141 Element 4161734 or 614105 ×2
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 ×2

Plates Wedged 6 pieces

  • Wedge Plate 4 x 4 Cut Corner Dark Blue Part 30503 Element 6554237 or 6526570 ×2
  • Wedge Plate 6 x 12 Left Light Gray Part 30355 Element 4124088 ×2
  • Wedge Plate 6 x 12 Right Light Gray Part 30356 Element 4124089 ×2

Bars, Ladders and Fences 2 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×1
  • Lever Small Base with Black Lever Black Part 298c02 Element 73587 ×1

Hinges, Arms and Turntables 2 pieces

  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Black Part 30553 Element 4143372 ×1
  • Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Black Part 41532 Element 4159335 ×1

String, Bands and Reels 2 pieces

  • Rubber Belt Small [15mm ID] [Round Cross Section] White Part 85543 Element 6699001 or 4580665 ×2

Plates Special 1 piece

  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×1

Technic Gears 1 piece

  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 ×1

Technic Special 1 piece

  • Ball, Hard Plastic, 51mm (approx. 6 studs diameter) Red Part 41250 Element 4156530 ×1

Wheels and Tyres 1 piece

  • Wheel 20 x 30 Technic Black Part 4266 Element 4107462 or 4101699 ×1

Minifigures 4 figures

  • Astronaut - White Torso and Legs, Tans-Black Visor, Female Minifigure, checked as a whole figure ×1
  • Astronaut - White Torso and Legs, Tans-Black Visor, Male Minifigure, checked as a whole figure ×1
  • Astronaut - Orange Torso and Legs, Tans-Black Visor, Male Minifigure, checked as a whole figure ×1
  • Astronaut - Orange Torso and Legs, Tans-Black Visor, Female 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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