42042-1
Crawler 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 – 42042-1 Crawler Crane
152 lines, 1,423 pieces
| Image | Part | Name | Colour | Quantity | Note |
|---|---|---|---|---|---|
 | 87994 | Bar 3LBars, Ladders and Fences | Light Bluish Gray | 2× | |
 | 30374 | Bar 4L (Lightsaber Blade / Wand)Bars, Ladders and Fences | Black | 2× | |
 | 61409 | Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / GrateBricks Sloped | Dark Bluish Gray | 8× | |
![Part 16511 Battery Box, Power Functions 4 x 11 x 7 with Orange Switch and Dark Bluish Gray Covers [Complete Assembly] [New Version] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/6368436.jpg) | 16511 | Battery Box, Power Functions 4 x 11 x 7 with Orange Switch and Dark Bluish Gray Covers [Complete Assembly] [New Version]Electronics | Light Bluish Gray | 1× | |
 | 99499 | Motor, Large, Power Functions with Dark Bluish Gray BottomElectronics | Light Bluish Gray | 1× | |
 | 30292 | Flag 7 x 3 with RodFlags, Banners and Signs | Dark Blue | 1× | |
 | 3623 | Plate 1 x 3Plates | White | 2× | |
 | 3021 | Plate 2 x 3Plates | Blue | 6× | |
 | 3020 | Plate 2 x 4Plates | Dark Bluish Gray | 4× | |
 | 6141 | Plate Round 1 x 1 with Solid StudPlates Round Curved and Dishes | Trans-Clear | 3× | |
 | 6141 | Plate Round 1 x 1 with Solid StudPlates Round Curved and Dishes | Trans-Orange | 2× | |
![Part 20874 Sticker Sheet for Set 42042-1 in [No Color/Any Color]](https://cdn.rebrickable.com/media/parts/photos/9999/20874-9999-5e8853d7-521e-4210-8ee9-d1419420fdf8.jpg) | 20874 | Sticker Sheet for Set 42042-1Stickers | [No Color/Any Color] | 1× | |
 | 21474 | String Cord Poly, 1.2mm Thickness, 100cmString, Bands and Reels | Black | 1× | |
 | 21478 | String Cord Poly, 1.2mm Thickness, 180cmString, Bands and Reels | Black | 1× | |
 | 61510 | String Reel 2 x 1 x 2 Drum with Axle HoleString, Bands and Reels | Light Bluish Gray | 1× | |
 | 3737 | Technic Axle 10Technic Axles | Black | 2× | |
 | 32062 | Technic Axle 2 NotchedTechnic Axles | Red | 15× | |
 | 4519 | Technic Axle 3Technic Axles | Light Bluish Gray | 40× | |
 | 6587 | Technic Axle 3 with StudTechnic Axles | Dark Tan | 6× | |
 | 3705 | Technic Axle 4Technic Axles | Black | 10× | |
 | 99008 | Technic Axle 4 with Centre StopTechnic Axles | Tan | 5× | |
 | 87083 | Technic Axle 4 with StopTechnic Axles | Dark Bluish Gray | 14× | |
 | 32073 | Technic Axle 5Technic Axles | Light Bluish Gray | 14× | |
 | 15462 | Technic Axle 5 with StopTechnic Axles | Dark Tan | 11× | |
![Part 59426 Technic Axle 5.5 with Stop [Rounded Short End] in Dark Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4508553.jpg) | 59426 | Technic Axle 5.5 with Stop [Rounded Short End]Technic Axles | Dark Bluish Gray | 4× | |
 | 3706 | Technic Axle 6Technic Axles | Black | 11× | |
 | 44294 | Technic Axle 7Technic Axles | Light Bluish Gray | 3× | |
 | 3707 | Technic Axle 8Technic Axles | Black | 3× | |
 | 55013 | Technic Axle 8 with StopTechnic Axles | Dark Bluish Gray | 5× | |
 | 60485 | Technic Axle 9Technic Axles | Light Bluish Gray | 2× | |
 | 32525 | Technic Beam 1 x 11 ThickTechnic Beams | Black | 3× | |
 | 32525 | Technic Beam 1 x 11 ThickTechnic Beams | Blue | 5× | |
 | 32525 | Technic Beam 1 x 11 ThickTechnic Beams | Dark Bluish Gray | 8× | |
 | 32009 | Technic Beam 1 x 11.5 Double Bent ThickTechnic Beams | Blue | 2× | |
 | 32009 | Technic Beam 1 x 11.5 Double Bent ThickTechnic Beams | White | 2× | |
 | 41239 | Technic Beam 1 x 13 ThickTechnic Beams | Dark Bluish Gray | 20× | |
 | 41239 | Technic Beam 1 x 13 ThickTechnic Beams | White | 3× | |
 | 32278 | Technic Beam 1 x 15 ThickTechnic Beams | Blue | 40× | |
 | 32278 | Technic Beam 1 x 15 ThickTechnic Beams | Dark Bluish Gray | 5× | |
 | 60483 | Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleTechnic Beams | Dark Bluish Gray | 23× | |
 | 41677 | Technic Beam 1 x 2 ThinTechnic Beams | White | 2× | |
 | 32523 | Technic Beam 1 x 3 ThickTechnic Beams | Black | 1× | |
 | 32523 | Technic Beam 1 x 3 ThickTechnic Beams | Blue | 17× | |
 | 32523 | Technic Beam 1 x 3 ThickTechnic Beams | White | 5× | |
 | 6632 | Technic Beam 1 x 3 ThinTechnic Beams | Black | 4× | |
 | 6632 | Technic Beam 1 x 3 ThinTechnic Beams | Blue | 6× | |
 | 32449 | Technic Beam 1 x 4 ThinTechnic Beams | White | 8× | |
 | 32316 | Technic Beam 1 x 5 ThickTechnic Beams | Black | 8× | |
 | 11478 | Technic Beam 1 x 5 Thin with Axle Holes on EndsTechnic Beams | Black | 6× | |
 | 32063 | Technic Beam 1 x 6 ThinTechnic Beams | Black | 16× | |
 | 32524 | Technic Beam 1 x 7 ThickTechnic Beams | Blue | 27× | |
 | 32524 | Technic Beam 1 x 7 ThickTechnic Beams | Dark Bluish Gray | 4× | |
 | 32524 | Technic Beam 1 x 7 ThickTechnic Beams | White | 1× | |
 | 6629 | Technic Beam 1 x 9 Bent (6 - 4) ThickTechnic Beams | Blue | 4× | |
 | 32271 | Technic Beam 1 x 9 Bent (7 - 3) ThickTechnic Beams | White | 2× | |
 | 40490 | Technic Beam 1 x 9 ThickTechnic Beams | Light Bluish Gray | 7× | |
 | 32140 | Technic Beam 2 x 4 L-Shape ThickTechnic Beams | Blue | 6× | |
 | 32140 | Technic Beam 2 x 4 L-Shape ThickTechnic Beams | Light Bluish Gray | 16× | |
 | 60484 | Technic Beam 3 x 3 T-Shape ThickTechnic Beams | Dark Bluish Gray | 2× | |
 | 60484 | Technic Beam 3 x 3 T-Shape ThickTechnic Beams | Light Bluish Gray | 12× | |
 | 32526 | Technic Beam 3 x 5 L-Shape ThickTechnic Beams | Blue | 7× | |
 | 32526 | Technic Beam 3 x 5 L-Shape ThickTechnic Beams | Dark Bluish Gray | 18× | |
 | 32526 | Technic Beam 3 x 5 L-Shape ThickTechnic Beams | White | 5× | |
![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× | |
![Part 99773 Technic Beam Triangle Thin [Type II] in Dark Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/6010862.jpg) | 99773 | Technic Beam Triangle Thin [Type II]Technic Beams | Dark Bluish Gray | 2× | |
 | 33299a | Technic Beam 3 x 0.5 Liftarm with Boss and Pin / CrankTechnic Beams Special | Light Bluish Gray | 4× | |
![Part 14720 Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/6055519.jpg) | 14720 | Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes]Technic Beams Special | Light Bluish Gray | 1× | |
 | 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 | Light Bluish Gray | 2× | |
![Part 32000 Technic Brick 1 x 2 [2 Pin Holes] in Black](https://cdn.rebrickable.com/media/parts/elements/3200026.jpg) | 32000 | Technic Brick 1 x 2 [2 Pin Holes]Technic Bricks | Black | 4× | |
 | 3713 | Technic BushTechnic Bushes | Light Bluish Gray | 20× | |
 | 32123b | Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes | Light Bluish Gray | 26× | |
 | 32123b | Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes | Yellow | 2× | |
![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 | 4× | |
![Part 59443 Technic Axle Connector Smooth [with x Hole + Orientation] in Red](https://cdn.rebrickable.com/media/parts/elements/4513174.jpg) | 59443 | Technic Axle Connector Smooth [with x Hole + Orientation]Technic Connectors | Red | 12× | |
 | 32039 | Technic Axle Connector with Axle HoleTechnic Connectors | Black | 9× | |
 | 32013 | Technic Axle and Pin Connector Angled #1Technic Connectors | White | 2× | |
 | 32034 | Technic Axle and Pin Connector Angled #2 - 180°Technic Connectors | Black | 3× | |
 | 32015 | Technic Axle and Pin Connector Angled #5 - 112.5°Technic Connectors | Light Bluish Gray | 2× | |
 | 32015 | Technic Axle and Pin Connector Angled #5 - 112.5°Technic Connectors | White | 2× | |
 | 6536 | Technic Axle and Pin Connector PerpendicularTechnic Connectors | Light Bluish Gray | 8× | |
 | 42003 | Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesTechnic Connectors | Black | 10× | |
 | 32184 | Technic Axle and Pin Connector Perpendicular 3L with Centre Pin HoleTechnic Connectors | Light Bluish Gray | 3× | |
 | 41678 | Technic Axle and Pin Connector Perpendicular Double SplitTechnic Connectors | Light Bluish Gray | 4× | |
 | 92907 | Technic Axle and Pin Connector Perpendicular SplitTechnic Connectors | Black | 6× | |
 | 63869 | Technic Axle and Pin Connector Perpendicular TripleTechnic Connectors | Light Bluish Gray | 14× | |
 | 32126 | Technic Axle and Pin Connector Toggle Joint SmoothTechnic Connectors | Blue | 2× | |
 | 53586 | Technic Axle and Pin Connector, Perpendicular with ExtensionTechnic Connectors | Flat Silver | 1× | |
 | 18948 | Technic Driving Ring ConnectorTechnic Connectors | White | 6× | |
 | 55615 | Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Across Part)Technic Connectors | Light Bluish Gray | 2× | |
 | 48989 | Technic Pin Connector Hub Perpendicular 3L with 4 PinsTechnic Connectors | Light Bluish Gray | 11× | |
 | 15100 | Technic Pin Connector Hub with 1 Pin with Friction Ridges LengthwiseTechnic Connectors | Black | 2× | |
 | 44809 | Technic Pin Connector Perpendicular 2 x 2 BentTechnic Connectors | Black | 5× | |
 | 32557 | Technic Pin Connector Perpendicular LongTechnic Connectors | Black | 4× | |
![Part 18654 Technic Pin Connector Round 1L [Beam] in Dark Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/6100030.jpg) | 18654 | Technic Pin Connector Round 1L [Beam]Technic Connectors | Dark Bluish Gray | 12× | |
![Part 62462 Technic Pin Connector Round [Slotted] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4526985.jpg) | 62462 | Technic Pin Connector Round [Slotted]Technic Connectors | Light Bluish Gray | 3× | |
![Part 62462 Technic Pin Connector Round [Slotted] in Yellow](https://cdn.rebrickable.com/media/parts/elements/4526983.jpg) | 62462 | Technic Pin Connector Round [Slotted]Technic Connectors | Yellow | 1× | |
 | 87408 | Technic Pin Connector Toggle Joint Smooth Double with Axle and Pin HolesTechnic Connectors | Black | 3× | |
 | 18947 | Technic Driving Ring 3LTechnic Gears | Dark Bluish Gray | 4× | |
 | 6589 | Technic Gear 12 Tooth BevelTechnic Gears | Tan | 4× | |
 | 32270 | Technic Gear 12 Tooth Double BevelTechnic Gears | Black | 5× | |
![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 | 3× | |
 | 18946 | Technic Gear 16 Tooth with Clutch on Both SidesTechnic Gears | Red | 11× | |
 | 32198 | Technic Gear 20 Tooth BevelTechnic Gears | Tan | 4× | |
![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 | 6× | |
 | 76244 | Technic Gear 24 Tooth Clutch with Dark Bluish Gray CenterTechnic Gears | White | 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 | 4× | |
![Part 10928 Technic Gear 8 Tooth [Reinforced] in Dark Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/6012451.jpg) | 10928 | Technic Gear 8 Tooth [Reinforced]Technic Gears | Dark Bluish Gray | 6× | |
 | 57519 | Technic Tread Sprocket Wheel Large 10 ToothTechnic 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× | |
 | 4716 | Technic Worm GearTechnic Gears | Light Bluish Gray | 2× | |
 | 15458 | Technic Panel 3 x 11 x 1Technic Panels | White | 2× | |
 | 11954 | Technic Panel Curved 11 x 3 with 10 Pin Holes Through Panel SurfaceTechnic Panels | Blue | 4× | |
 | 87080 | Technic Panel Fairing #1 Small Smooth Short, Side ATechnic Panels | Blue | 6× | |
 | 87086 | Technic Panel Fairing #2 Small Smooth Short, Side BTechnic Panels | Blue | 5× | |
 | 11214 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L AxleTechnic Pins | Dark Bluish Gray | 18× | |
 | 43093 | Technic Axle Pin with Friction Ridges LengthwiseTechnic Pins | Blue | 39× | |
 | 4274 | Technic Pin 1/2 without Friction RidgesTechnic Pins | Light Bluish Gray | 14× | |
 | 32002 | Technic Pin 3/4Technic Pins | Tan | 4× | |
 | 19159 | Technic Pin Double Triangle 1 x 3 with 2 Clips Squared Pin HolesTechnic Pins | Black | 1× | |
 | 32138 | Technic Pin Double with Axle HoleTechnic Pins | Black | 2× | |
![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 | 36× | |
![Part 32054 Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4211865.jpg) | 32054 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]Technic Pins | Light Bluish Gray | 50× | |
 | 6558 | Technic Pin Long with Friction Ridges Lengthwise, 2 Center SlotsTechnic Pins | Blue | 129× | |
 | 32556 | Technic Pin Long without Friction RidgesTechnic Pins | Tan | 15× | |
 | 2780 | Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins | Black | 185× | |
 | 6628 | Technic Pin with Friction Ridges Lengthwise and TowballTechnic Pins | Black | 4× | |
 | 3673 | Technic Pin without Friction Ridges LengthwiseTechnic Pins | Light Bluish Gray | 16× | |
 | 6641 | Technic Changeover Catch - + OpeningTechnic Special | Red | 2× | |
![Part 19540 Technic Grabber Arm Claw with 3L Thick Beam [Type 2] in Black](https://cdn.rebrickable.com/media/parts/elements/6100179.jpg) | 19540 | Technic Grabber Arm Claw with 3L Thick Beam [Type 2]Technic Special | Black | 4× | |
 | 92693 | Technic Linear Actuator Mini with Dark Bluish Gray Head and Orange AxleTechnic Special | Light Bluish Gray | 1× | |
 | 2637 | Technic Link 1 x 16Technic Special | Light Bluish Gray | 4× | |
 | 88323 | Technic Link Tread Wide with Two Pin Holes, ReinforcedTechnic Special | Dark Bluish Gray | 90× | |
![Part 61903 Technic Universal Joint 3L [Complete Assembly] in Light Bluish Gray](https://cdn.rebrickable.com/media/parts/elements/4525904.jpg) | 61903 | Technic Universal Joint 3L [Complete Assembly]Technic Steering, Suspension and Engine | Light Bluish Gray | 1× | |
 | 2431 | Tile 1 x 4 with GrooveTiles | Blue | 2× | |
 | 87079 | Tile 2 x 4 with GrooveTiles | White | 2× | |
![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 | 4× | |
 | 42610 | Wheel 11 x 8 with Center GrooveWheels and Tyres | Light Bluish Gray | 28× | |
 | 13971 | Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner RingWheels and Tyres | Light Bluish Gray | 1× | |
 | 55982 | Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow SpokesWheels and Tyres | Light Bluish Gray | 2× | |
| 87994 | Bar 3LBars, Ladders and Fences | Light Bluish Gray | 1× | Spare |
| 6141 | Plate Round 1 x 1 with Solid StudPlates Round Curved and Dishes | Trans-Clear | 1× | Spare |
| 6141 | Plate Round 1 x 1 with Solid StudPlates Round Curved and Dishes | Trans-Orange | 1× | Spare |
| 3713 | Technic BushTechnic Bushes | Light Bluish Gray | 4× | Spare |
| 32123b | Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes | Light Bluish Gray | 3× | 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 | Dark Bluish Gray | 3× | Spare |
| 4274 | Technic Pin 1/2 without Friction RidgesTechnic Pins | Light Bluish Gray | 2× | Spare |
| 32002 | Technic Pin 3/4Technic Pins | Tan | 2× | Spare |
| 2780 | Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins | Black | 4× | Spare |
| 3673 | Technic Pin without Friction Ridges LengthwiseTechnic Pins | Light Bluish Gray | 1× | Spare |