42108-1
Mobile Crane
Building instructions
The building instructions are on the official LEGO website. We do not host any instructions ourselves; the link below takes you to the official page.
View building instructions on LEGO.com (opens an external website)This set on Rebrickable (opens an external website)
Parts list – 42108-1 Mobile Crane
157 lines, 1,304 pieces
| Image | Part | Name | Colour | Quantity | Note |
|---|---|---|---|---|---|
 | 93273 | Brick Curved 4 x 1 Double, No StudsBricks Curved | Black | 1× | |
 | 25214 | Brick Round 1 x 1 Diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at Each EndBricks Round and Cones | Black | 6× | |
![Part 92947 Brick Round 2 x 2 [Grill] in Black](https://cdn.rebrickable.com/media/parts/elements/6024730.jpg) | 92947 | Brick Round 2 x 2 [Grill]Bricks Round and Cones | Black | 3× | |
 | 3941 | Brick Round 2 x 2 with Axle HoleBricks Round and Cones | Trans-Orange | 2× | |
 | 3023 | Plate 1 x 2Plates | Black | 1× | |
 | 3623 | Plate 1 x 3Plates | Black | 4× | |
 | 3710 | Plate 1 x 4Plates | Black | 1× | |
 | 2445 | Plate 2 x 12Plates | Black | 3× | |
 | 3034 | Plate 2 x 8Plates | Black | 1× | |
 | 85861 | Plate Round 1 x 1 with Open StudPlates Round Curved and Dishes | Black | 5× | |
![Part 2654 Plate Round 2 x 2 with Rounded Bottom [Boat Stud] in Black](https://cdn.rebrickable.com/media/parts/elements/265426.jpg) | 2654 | Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Plates Round Curved and Dishes | Black | 3× | |
![Part 2654 Plate Round 2 x 2 with Rounded Bottom [Boat Stud] in Trans-Orange](https://cdn.rebrickable.com/media/parts/elements/4278409.jpg) | 2654 | Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Plates Round Curved and Dishes | Trans-Orange | 2× | |
 | 35480 | Plate Special 1 x 2 Rounded with 2 Open StudsPlates Round Curved and Dishes | Black | 1× | |
![Part 4081b Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] in Black](https://cdn.rebrickable.com/media/parts/elements/408126.jpg) | 4081b | Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]Plates Special | Black | 1× | |
![Part 65625 Sticker Sheet for Set 42108-1 in [No Color/Any Color]](https://cdn.rebrickable.com/media/parts/photos/9999/PART-6142-9999-8b822e48-4e85-4d3c-99a5-170493951015.jpg) | 65625 | Sticker Sheet for Set 42108-1Stickers | [No Color/Any Color] | 1× | |
![Part 60169 Chain 16L [21 Links] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4512049.jpg) | 60169 | Chain 16L [21 Links]String, Bands and Reels | Light Bluish Gray | 1× | |
 | 37597c300 | String Cord Medium Thickness (1mm) 300cmString, Bands and Reels | Dark Bluish Gray | 1× | |
 | 30395 | Hook with TowballSupports, Girders and Cranes | Dark Bluish Gray | 1× | |
 | 3737 | Technic Axle 10Technic Axles | Black | 1× | |
 | 23948 | Technic Axle 11Technic Axles | Yellow | 4× | |
 | 32062 | Technic Axle 2 NotchedTechnic Axles | Red | 39× | |
 | 4519 | Technic Axle 3Technic Axles | Light Bluish Gray | 28× | |
 | 24316 | Technic Axle 3 with StopTechnic Axles | Reddish Brown | 21× | |
 | 6587 | Technic Axle 3 with StudTechnic Axles | Dark Tan | 3× | |
 | 3705 | Technic Axle 4Technic Axles | Black | 6× | |
 | 87083 | Technic Axle 4 with StopTechnic Axles | Dark Bluish Gray | 7× | |
 | 32073 | Technic Axle 5Technic Axles | Light Bluish Gray | 6× | |
 | 3706 | Technic Axle 6Technic Axles | Black | 2× | |
 | 3706 | Technic Axle 6Technic Axles | Red | 2× | |
 | 44294 | Technic Axle 7Technic Axles | Yellow | 7× | |
 | 3707 | Technic Axle 8Technic Axles | Red | 2× | |
 | 32525 | Technic Beam 1 x 11 ThickTechnic Beams | Black | 6× | |
 | 32009 | Technic Beam 1 x 11.5 Double Bent ThickTechnic Beams | Black | 4× | |
 | 41239 | Technic Beam 1 x 13 ThickTechnic Beams | Yellow | 11× | |
 | 32278 | Technic Beam 1 x 15 ThickTechnic Beams | Black | 12× | |
 | 32278 | Technic Beam 1 x 15 ThickTechnic Beams | Light Bluish Gray | 4× | |
 | 43857 | Technic Beam 1 x 2 ThickTechnic Beams | Black | 1× | |
 | 60483 | Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleTechnic Beams | Dark Bluish Gray | 8× | |
 | 41677 | Technic Beam 1 x 2 ThinTechnic Beams | Light Bluish Gray | 18× | |
 | 32523 | Technic Beam 1 x 3 ThickTechnic Beams | Black | 2× | |
 | 32523 | Technic Beam 1 x 3 ThickTechnic Beams | Yellow | 9× | |
 | 32449 | Technic Beam 1 x 4 ThinTechnic Beams | Light Bluish Gray | 13× | |
 | 32316 | Technic Beam 1 x 5 ThickTechnic Beams | Black | 9× | |
 | 32316 | Technic Beam 1 x 5 ThickTechnic Beams | Yellow | 17× | |
 | 11478 | Technic Beam 1 x 5 Thin with Axle Holes on EndsTechnic Beams | Black | 8× | |
 | 32524 | Technic Beam 1 x 7 ThickTechnic Beams | Black | 13× | |
 | 32524 | Technic Beam 1 x 7 ThickTechnic Beams | Yellow | 8× | |
 | 6629 | Technic Beam 1 x 9 Bent (6 - 4) ThickTechnic Beams | Black | 4× | |
 | 32271 | Technic Beam 1 x 9 Bent (7 - 3) ThickTechnic Beams | Black | 4× | |
 | 40490 | Technic Beam 1 x 9 ThickTechnic Beams | Dark Bluish Gray | 16× | |
 | 40490 | Technic Beam 1 x 9 ThickTechnic Beams | Yellow | 2× | |
 | 32140 | Technic Beam 2 x 4 L-Shape ThickTechnic Beams | Black | 8× | |
 | 32140 | Technic Beam 2 x 4 L-Shape ThickTechnic Beams | Yellow | 17× | |
 | 60484 | Technic Beam 3 x 3 T-Shape ThickTechnic Beams | Black | 4× | |
 | 60484 | Technic Beam 3 x 3 T-Shape ThickTechnic Beams | Yellow | 8× | |
 | 32526 | Technic Beam 3 x 5 L-Shape ThickTechnic Beams | Black | 6× | |
 | 32250 | Technic Beam 3 x 5 L-Shape with Quarter Ellipse ThinTechnic Beams | Black | 6× | |
![Part 99773 Technic Beam Triangle Thin [Type II] in Black](https://cdn.rebrickable.com/media/parts/elements/6331437.jpg) | 99773 | Technic Beam Triangle Thin [Type II]Technic Beams | Black | 2× | |
 | 61408 | Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin HoleTechnic Beams Special | Black | 3× | |
 | 61408 | Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin HoleTechnic Beams Special | Light Bluish Gray | 10× | |
![Part 14720 Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] in Yellow](https://cdn.rebrickable.com/media/parts/elements/6259054.jpg) | 14720 | Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes]Technic Beams Special | Yellow | 5× | |
 | 64178 | Technic Beam 5 x 11 with 3 x 5 Opening Frame ThickTechnic Beams Special | Light Bluish Gray | 2× | |
 | 64179 | Technic Beam Frame 5 x 7 with 3 x 5 Opening ThickTechnic Beams Special | Black | 1× | |
 | 64179 | Technic Beam Frame 5 x 7 with 3 x 5 Opening ThickTechnic Beams Special | Light Bluish Gray | 4× | |
![Part 85940 Technic Pin Connector Double with Bar [2 Holes] in Black](https://cdn.rebrickable.com/media/parts/elements/4548278.jpg) | 85940 | Technic Pin Connector Double with Bar [2 Holes]Technic Beams Special | Black | 2× | |
![Part 2730 Technic Brick 1 x 10 [9 Pin Holes] in Black](https://cdn.rebrickable.com/media/parts/elements/273026.jpg) | 2730 | Technic Brick 1 x 10 [9 Pin Holes]Technic Bricks | Black | 1× | |
![Part 3895 Technic Brick 1 x 12 [11 Pin Holes] in Black](https://cdn.rebrickable.com/media/parts/elements/389526.jpg) | 3895 | Technic Brick 1 x 12 [11 Pin Holes]Technic Bricks | Black | 6× | |
![Part 3701 Technic Brick 1 x 4 [3 Pin Holes] in Black](https://cdn.rebrickable.com/media/parts/elements/370126.jpg) | 3701 | Technic Brick 1 x 4 [3 Pin Holes]Technic Bricks | Black | 1× | |
 | 3713 | Technic BushTechnic Bushes | Red | 6× | |
 | 32123b | Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes | Yellow | 23× | |
![Part 59443 Technic Axle Connector Smooth [with x Hole + Orientation] in Black](https://cdn.rebrickable.com/media/parts/elements/4512363.jpg) | 59443 | Technic Axle Connector Smooth [with x Hole + Orientation]Technic Connectors | Black | 10× | |
 | 32013 | Technic Axle and Pin Connector Angled #1Technic Connectors | Black | 9× | |
 | 32034 | Technic Axle and Pin Connector Angled #2 - 180°Technic Connectors | Black | 11× | |
 | 32014 | Technic Axle and Pin Connector Angled #6 - 90°Technic Connectors | Red | 2× | |
![Part 61904 Technic Axle and Pin Connector Block 4 x 3 x 2 1/2 [Linear Actuator Holder] in Dark Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4528038.jpg) | 61904 | Technic Axle and Pin Connector Block 4 x 3 x 2 1/2 [Linear Actuator Holder]Technic Connectors | Dark Bluish Gray | 1× | |
 | 6536 | Technic Axle and Pin Connector PerpendicularTechnic Connectors | Black | 11× | |
 | 6536 | Technic Axle and Pin Connector PerpendicularTechnic Connectors | Yellow | 17× | |
 | 42003 | Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesTechnic Connectors | Light Bluish Gray | 9× | |
 | 32184 | Technic Axle and Pin Connector Perpendicular 3L with Centre Pin HoleTechnic Connectors | Yellow | 5× | |
 | 32291 | Technic Axle and Pin Connector Perpendicular DoubleTechnic Connectors | Black | 2× | |
 | 41678 | Technic Axle and Pin Connector Perpendicular Double SplitTechnic Connectors | Light Bluish Gray | 6× | |
 | 92907 | Technic Axle and Pin Connector Perpendicular SplitTechnic Connectors | Light Bluish Gray | 4× | |
 | 63869 | Technic Axle and Pin Connector Perpendicular TripleTechnic Connectors | Black | 1× | |
![Part 42195 Technic Driving Ring Connector Smooth [2 Rounded and 2 Flat Side Walls] in Black](https://cdn.rebrickable.com/media/parts/elements/6286381.jpg) | 42195 | Technic Driving Ring Connector Smooth [2 Rounded and 2 Flat Side Walls]Technic Connectors | Black | 9× | |
![Part 42195 Technic Driving Ring Connector Smooth [2 Rounded and 2 Flat Side Walls] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/6273212.jpg) | 42195 | Technic Driving Ring Connector Smooth [2 Rounded and 2 Flat Side Walls]Technic Connectors | Light Bluish Gray | 6× | |
![Part 46189 Technic Pin Connector 3L with 2 Pins and Center Hole [Pin Ridges Across Part] in Black](https://cdn.rebrickable.com/media/parts/elements/6267991.jpg) | 46189 | Technic Pin Connector 3L with 2 Pins and Center Hole [Pin Ridges Across Part]Technic Connectors | Black | 2× | |
 | 48989 | Technic Pin Connector Hub Perpendicular 3L with 4 PinsTechnic Connectors | Light Bluish Gray | 8× | |
 | 22961 | Technic Pin Connector Hub with 1 AxleTechnic Connectors | Light Bluish Gray | 9× | |
 | 15100 | Technic Pin Connector Hub with 1 Pin with Friction Ridges LengthwiseTechnic Connectors | Black | 33× | |
 | 15100 | Technic Pin Connector Hub with 1 Pin with Friction Ridges LengthwiseTechnic Connectors | Blue | 12× | |
 | 15100 | Technic Pin Connector Hub with 1 Pin with Friction Ridges LengthwiseTechnic Connectors | Yellow | 10× | |
 | 27940 | Technic Pin Connector Hub with 2 AxlesTechnic Connectors | Dark Bluish Gray | 2× | |
![Part 87082 Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes] in Black](https://cdn.rebrickable.com/media/parts/elements/4560174.jpg) | 87082 | Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes]Technic Connectors | Black | 6× | |
![Part 18654 Technic Pin Connector Round 1L [Beam] in Black](https://cdn.rebrickable.com/media/parts/elements/6121485.jpg) | 18654 | Technic Pin Connector Round 1L [Beam]Technic Connectors | Black | 35× | |
 | 48496 | Technic Pin Connector Toggle Joint Smooth Double with 2 PinsTechnic Connectors | Black | 3× | |
 | 6589 | Technic Gear 12 Tooth BevelTechnic Gears | Tan | 9× | |
 | 32270 | Technic Gear 12 Tooth Double BevelTechnic Gears | Black | 9× | |
![Part 94925 Technic Gear 16 Tooth Reinforced [New Style] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4640536.jpg) | 94925 | Technic Gear 16 Tooth Reinforced [New Style]Technic Gears | Light Bluish Gray | 1× | |
 | 18946 | Technic Gear 16 Tooth with Clutch on Both SidesTechnic Gears | Red | 1× | |
 | 32198 | Technic Gear 20 Tooth BevelTechnic Gears | Tan | 1× | |
![Part 18575 Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] in Tan](https://cdn.rebrickable.com/media/parts/elements/6084724.jpg) | 18575 | Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]Technic Gears | Tan | 2× | |
 | 35185 | Technic Gear 20 Tooth Double Bevel with Clutch on Both SidesTechnic Gears | Blue | 2× | |
![Part 3648b Technic Gear 24 Tooth [New Style with Single Axle Hole] in Dark Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4514558.jpg) | 3648b | Technic Gear 24 Tooth [New Style with Single Axle Hole]Technic Gears | Dark Bluish Gray | 2× | |
 | 3743 | Technic Gear Rack 1 x 4Technic Gears | Black | 10× | |
 | 87761 | Technic Gear Rack 1 x 7 with Axle and Pin HolesTechnic Gears | Black | 4× | |
 | 18939 | Technic Turntable Large Type 3 BaseTechnic Gears | Light Bluish Gray | 1× | |
 | 18938 | Technic Turntable Large Type 3 Top, 60 ToothTechnic Gears | Black | 1× | |
 | 15458 | Technic Panel 3 x 11 x 1Technic Panels | Yellow | 1× | |
 | 11954 | Technic Panel Curved 11 x 3 with 10 Pin Holes Through Panel SurfaceTechnic Panels | Yellow | 11× | |
 | 24116 | Technic Panel Curved and Bent 6 x 3Technic Panels | Black | 4× | |
 | 24116 | Technic Panel Curved and Bent 6 x 3Technic Panels | Blue | 4× | |
 | 24116 | Technic Panel Curved and Bent 6 x 3Technic Panels | Yellow | 4× | |
 | 64683 | Technic Panel Fairing # 3 Small Smooth Long, Side ATechnic Panels | Black | 1× | |
 | 64391 | Technic Panel Fairing # 4 Small Smooth Long, Side BTechnic Panels | Black | 1× | |
 | 64681 | Technic Panel Fairing #5 Long Smooth, Side ATechnic Panels | Yellow | 1× | |
 | 64393 | Technic Panel Fairing #6 Long Smooth, Side BTechnic Panels | Yellow | 1× | |
 | 11214 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L AxleTechnic Pins | Red | 17× | |
 | 18651 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L AxleTechnic Pins | Black | 11× | |
 | 43093 | Technic Axle Pin with Friction Ridges LengthwiseTechnic Pins | Blue | 54× | |
 | 2736 | Technic Axle TowballTechnic Pins | Light Bluish Gray | 2× | |
 | 4274 | Technic Pin 1/2 without Friction RidgesTechnic Pins | Light Bluish Gray | 29× | |
 | 32002 | Technic Pin 3/4Technic Pins | Tan | 3× | |
![Part 32054 Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] in Black](https://cdn.rebrickable.com/media/parts/elements/4107742.jpg) | 32054 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]Technic Pins | Black | 17× | |
![Part 32054 Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] in Orange](https://cdn.rebrickable.com/media/parts/elements/4140428.jpg) | 32054 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]Technic Pins | Orange | 15× | |
 | 6558 | Technic Pin Long with Friction Ridges Lengthwise, 2 Center SlotsTechnic Pins | Blue | 106× | |
 | 32556 | Technic Pin Long without Friction RidgesTechnic Pins | Tan | 1× | |
 | 2780 | Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins | Black | 223× | |
 | 6628 | Technic Pin with Friction Ridges Lengthwise and TowballTechnic Pins | Red | 2× | |
 | 3673 | Technic Pin without Friction Ridges LengthwiseTechnic Pins | Light Bluish Gray | 2× | |
 | 2723 | Technic Disc 3 x 3Technic Special | Black | 1× | |
 | 40918 | Technic Linear Actuator with Dark Bluish Gray Ends LongTechnic Special | Light Bluish Gray | 1× | |
 | 2853 | Technic Engine CrankshaftTechnic Steering, Suspension and Engine | Light Bluish Gray | 1× | |
 | 2819 | Technic Steering Wheel Small (3 Studs Diameter)Technic Steering, Suspension and Engine | Light Bluish Gray | 1× | |
 | 2431 | Tile 1 x 4 with GrooveTiles | Light Bluish Gray | 3× | |
 | 6636 | Tile 1 x 6 with GrooveTiles | Black | 7× | |
 | 14719 | Tile 2 x 2 CornerTiles | Light Bluish Gray | 1× | |
 | 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Clear | 8× | |
 | 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Green | 1× | |
 | 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Orange | 12× | |
 | 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Red | 5× | |
 | 15535 | Tile Special Round 2 x 2 with HoleTiles Special | Black | 5× | |
![Part 4185 Technic Wedge Belt Wheel [aka Pulley] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4211544.jpg) | 4185 | Technic Wedge Belt Wheel [aka Pulley]Wheels and Tyres | Light Bluish Gray | 1× | |
 | 15413 | Tyre 49.53 x 20Wheels and Tyres | Black | 8× | |
 | 13971 | Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner RingWheels and Tyres | Light Bluish Gray | 3× | |
 | 56145 | Wheel 30.4 x 20 without Pinholes, with Reinforced RimWheels and Tyres | Yellow | 8× | |
| 85861 | Plate Round 1 x 1 with Open StudPlates Round Curved and Dishes | Black | 1× | Spare |
| 3713 | Technic BushTechnic Bushes | Red | 1× | Spare |
| 32123b | Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes | Yellow | 1× | Spare |
| 18654 | Technic Pin Connector Round 1L [Beam]Technic Connectors | Black | 1× | Spare |
| 4274 | Technic Pin 1/2 without Friction RidgesTechnic Pins | Light Bluish Gray | 1× | Spare |
| 32002 | Technic Pin 3/4Technic Pins | Tan | 1× | Spare |
| 2780 | Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins | Black | 1× | Spare |
| 3673 | Technic Pin without Friction Ridges LengthwiseTechnic Pins | Light Bluish Gray | 1× | Spare |
| 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Clear | 1× | Spare |
| 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Green | 1× | Spare |
| 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Orange | 1× | Spare |
| 98138 | Tile Round 1 x 1Tiles Round and Curved | Trans-Red | 1× | Spare |