The LEGO Technic 42108 Mobile Crane is a 1,292-piece large Technic crane truck — with an extending outrigger stabiliser system, a motorisable (Power Functions compatible) hydraulic boom that extends, rotates, and lowers, and a working hook. The most comprehensive mobile crane in the Technic line.
Why Collectors Love It
How Real Mobile Cranes Work
A mobile crane is one of the most complex vehicles on any construction site — it drives on the road, parks, extends its outriggers, rotates its superstructure, extends its boom in multiple stages, and lifts. The LEGO Technic 42108 replicates all of these functions: outriggers, rotating superstructure, extending two-stage boom, raising and lowering, and a working hook. A complete crane education in 1,292 pieces.
The Outrigger Detail
Most LEGO cranes don't include outriggers — the fold-out stabiliser legs that real cranes deploy before lifting. The 42108 has them: four outrigger pads that fold out from the truck body and extend downward to stabilise the vehicle for heavy lifts. A detail that makes this the most realistic mobile crane Technic has produced.
Specifications
- Piece Count: 1,292
- Set Number: 42108
- Theme: LEGO Technic
- Features: Extending 2-stage boom, 360° rotation, raising/lowering, outrigger stabilisers, working hook
- Power: Hand-crank standard; Power Functions compatible
- Year Released: 2020
- Condition: Brand New, Sealed
- EAN: 5702016616590
Your Questions Answered
Your Mobile Crane — Backed by Us
30-day money-back guarantee. Brand new sealed.
Customers Love It!
⭐⭐⭐⭐⭐
"The most complete mobile crane LEGO has made. The outriggers deploy, the boom extends in two stages, it rotates 360 degrees, and the hook lowers. My son has set up a full construction site around it. Mechanically impressive."
"A civil engineer by profession. The Technic crane is mechanically accurate — the outrigger deployment and multi-stage boom extension are correctly implemented. The most educational Technic set for how cranes actually work."
🚚 Free Shipping — Shipped within 2 business days
🛡️ Secure Packaging — Carefully packed to arrive safely
🔄 30-Day Returns — Not happy? We'll sort it out
💬 Friendly Support — Real people, fast responses