LEGO SET 42108 - Alternate build | Mobile Crane
Reimagining the Mobile Crane: 42108-1 Alternate Builds and Endless Creativity
From its sturdy outriggers to its smoothly extending boom, the LEGO Technic 42108-1 Mobile Crane is a marvel of engineering in its own right. Yet, for the true enthusiast, a set isn’t merely a final build—it’s a trove of possibilities. With its rich assortment of beams, gears, connectors, and panels, this set unlocks a world of alternate creations limited only by imagination. Whether you’re craving a heavy-duty forklift to lift pallets at a bustling warehouse, an agile roll-off truck darting through city streets, or even a whimsical ferris wheel turning slow and steady, the 42108’s inventory can be reassembled to serve wildly different functions and aesthetics.
In the following gallery, you’ll discover over twenty inspiring MOCs—each crafted by talented builders who’ve leveraged every piece of the Mobile Crane to produce vehicles, machines, and contraptions that stretch far beyond the original design. You’ll see elegant tow trucks, industrial harbourside cranes, rugged telehandlers, and even seaplanes and ferris wheels. Some explore the theme of heavy lifting; others pivot to transport, leisure, or exploration. Each model retains a nod to the Technic ethos of movement and mechanics, demonstrating how versatile this parts pack truly is.
Whether you’re a Technic veteran looking for your next challenge or a fan eager to breathe new life into the set, these alternate builds provide step-by-step instructions to guide your journey. Dive in, pick a project that calls to you, and let the parts of the 42108-1 Mobile Crane set reveal an entirely new creative horizon.
Alternative Builds Showcase
42108 Roll-off Truck
Designer: M_longer
Get the instructions: Rebrickable – 42108 Roll-off Truck
42108 American Tow Truck – Alternate Build
Designer: timtimgo
Get the instructions: Rebrickable – 42108 American Tow Truck
42108 Harbour Crane
Designer: Nequmodiva
Get the instructions: Rebrickable – 42108 Harbour Crane
JCB Roto Telehandler
Designer: technicprojects
Get the instructions: Rebrickable – JCB Roto Telehandler
42108-B: Heavy Duty Forklift
Designer: Antoineddp
Get the instructions: Rebrickable – Heavy Duty Forklift
42108 Ferris Wheel
Designer: Nequmodiva
Get the instructions: Rebrickable – Ferris Wheel
LEGO Technic 42108 Old School Bus
Designer: O.L.A_Tech
Get the instructions: Rebrickable – Old School Bus
42108 C-Model: RACETRACKTOR Truck
Designer: Cleansupgood
Get the instructions: Rebrickable – RACETRACKTOR Truck
42108 Low Semitruck
Designer: VoidSerpent
Get the instructions: Rebrickable – Low Semitruck
42108 Flatbed Tow Truck
Designer: Dadudi_Technic_Creations
Get the instructions: Rebrickable – Flatbed Tow Truck
42108 Flying Boat
Designer: Nequmodiva
Get the instructions: Rebrickable – Flying Boat
Straddle Carrier
Designer: KeisukeOmori
Get the instructions: Rebrickable – Straddle Carrier
Caterham 7 – 42108 B Model
Designer: JamesJT
Get the instructions: Rebrickable – Caterham 7
Snow Plow Mercedes Unimog (42108)
Designer: Old_Fejit
Get the instructions: Rebrickable – Snow Plow Unimog
Articulated Hauler
Designer: tgbdz
Get the instructions: Rebrickable – Articulated Hauler
42108 Mini Rough Terrain Crane
Designer: Bricklab2006
Get the instructions: Rebrickable – Mini Rough Terrain Crane
LEGO Technic 42108 B-Model Tow-Truck
Designer: O.L.A_Tech
Get the instructions: Rebrickable – Tow-Truck B-Model
42108 Seaplane
Designer: M_longer
Get the instructions: Rebrickable – Seaplane
Alternate Car + Trailer + Boat
Designer: Roelofs Creations
Get the instructions: Rebrickable – Car + Trailer + Boat
Truck-Mounted Crane
Designer: legoRookie2021
Get the instructions: Rebrickable – Truck-Mounted Crane
Flatbed Tow Truck (Alternate)
Designer: Old_Fejit
Get the instructions: Rebrickable – Flatbed Tow Truck Alt
Truck 42108
Designer: Old_Fejit
Get the instructions: Rebrickable – Truck 42108
With these builds, the 42108-1 Mobile Crane proves itself not just a single model but a parts universe waiting to be reshaped. Pick your favorite, gather your pieces, and embark on a new Technic adventure!
Click here for more alternative builds and Modifications for this Lego set
