How many pieces are in the Mobile Crane?

Mobile Crane contains 1,292 pieces.

What age is the Mobile Crane recommended for?

This set is recommended for ages 10+.

When was the Mobile Crane released?

Mobile Crane was released in 2020.

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🏛 Technic

Set #42108

Mobile Crane

The Mobile Crane 42108 is a solid entry in the Technic line.

Before you buy

Who it's for: Ages 10+ · Intermediate build Ideal for teens and adults who enjoy Technic models and realistic mechanical functions.
Build: 1,292 pieces · about 4.5 hours Build time is an estimate.
Price: $99.99 list price · 7.7¢ per piece
Availability: Retired at LEGO

★★★☆☆ 3.9 community rating from 115 ratings

Fans appreciate the realistic functionality and engaging build experience of the Mobile Crane. Some criticize the lack of Powered Up functions and wish for a more challenging, complex build overall.

$99.99

Check price on eBay

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The Mobile Crane 42108 is a solid entry in the Technic line. With its realistic functions and complex build, this crane offers a satisfying experience for builders interested in mechanical models. The intricate gearing and operational features make it a standout display piece.

This set is perfect for intermediate Technic builders and crane enthusiasts. The build provides a good balance of challenge and reward, taking around 4-5 hours to complete. Its functional design makes it an engaging display model.

Skip this if you prefer minifigure-scale models or simpler builds. If you're looking for a less complex construction experience, consider smaller Technic sets or models from the Creator line.

✨ New

Ask BlockTalk about this set

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BlockTalk

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How does the Mobile Crane's functionality compare to other Technic cranes? What are some advanced building techniques used in this set? Is the Mobile Crane a good value for the piece count? How can I display the Mobile Crane to showcase its features?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

1,292

Pieces

⏱

4.5h

Estimated Build Time

📊

Intermediate

Difficulty

📏

78cm × 48cm × 11cm

Dimensions

Build Highlights:

Intricate gearing system for realistic crane operation
Detailed boom extension and lifting mechanism
Challenging assembly of the chassis and support structures
Authentic design features of a mobile crane

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

Not enough price history for a trend

Investment Grade

⏳ Retired

The Mobile Crane 42108 presents a moderate investment opportunity. As a retired Technic set, it benefits from the theme's popularity and the model's functional realism. While not as iconic as some other Technic flagships, its decent piece count and complexity could lead to gradual appreciation. However, the investment potential is somewhat limited by the set's relatively common status and the availability of similar Technic models. Investors should monitor secondary market prices and demand.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Liebherr Crawler Crane LR 13000

Technic • 2,883 pcs

$449.99

The Mobile Crane 42108 offers a realistic crane building experience at a mid-range price point. Compared to larger, more expensive Technic cranes, this set provides a more accessible entry point. While it may lack the scale and complexity of flagship models, it offers a solid balance of features and value. Consider this set for its realistic design and functional operation.

📦 Parts Inventory

Official piece count: 1,292
Parts cataloged in this inventory: 124 unique parts, 1,292 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Technic Axle Pin ...

Part #: 11214 17× Red

Technic Beam 1 x ...

Part #: 11478 8× Black

Technic Panel Cur...

Part #: 11954 11× Yellow

Wheel 18 x 8 with...

Part #: 13971 3× Light Bluish Gray

Tile 2 x 2 Corner

Part #: 14719 1× Light Bluish Gray

Technic Beam 3 x ...

Part #: 14720 5× Yellow

Technic Pin Conne...

Part #: 15100 33× Black

Technic Pin Conne...

Part #: 15100 10× Yellow

Technic Pin Conne...

Part #: 15100 12× Blue

Tyre 49.53 x 20

Part #: 15413 8× Black

Technic Panel 3 x...

Part #: 15458 1× Yellow

Tile Special Roun...

Part #: 15535 5× Black

Technic Gear 20 T...

Part #: 18575 2× Tan

Technic Axle Pin ...

Part #: 18651 11× Black

Technic Pin Conne...

Part #: 18654 35× Black

Technic Turntable...

Part #: 18938 1× Black

Technic Turntable...

Part #: 18939 1× Light Bluish Gray

Technic Gear 16 T...

Part #: 18946 1× Red

Technic Pin Conne...

Part #: 22961 9× Light Bluish Gray

Technic Axle 11

Part #: 23948 4× Yellow

Technic Panel Cur...

Part #: 24116 4× Blue

Technic Panel Cur...

Part #: 24116 4× Yellow

Technic Panel Cur...

Part #: 24116 4× Black

Tile 1 x 4 with G...

Part #: 2431 3× Light Bluish Gray

Technic Axle 3 wi...

Part #: 24316 21× Reddish Brown

Plate 2 x 12

Part #: 2445 3× Black

Brick Round 1 x 1...

Part #: 25214 6× Black

Plate Round 2 x 2...

Part #: 2654 3× Black

Plate Round 2 x 2...

Part #: 2654 2× Trans-Orange

Technic Disc 3 x 3

Part #: 2723 1× Black

Technic Brick 1 x...

Part #: 2730 1× Black

Technic Axle Towball

Part #: 2736 2× Light Bluish Gray

Technic Pin with ...

Part #: 2780 223× Black

Technic Pin Conne...

Part #: 27940 2× Dark Bluish Gray

Technic Steering ...

Part #: 2819 1× Light Bluish Gray

Technic Engine Cr...

Part #: 2853 1× Light Bluish Gray

Plate 1 x 2

Part #: 3023 1× Black

Plate 2 x 8

Part #: 3034 1× Black

Hook with Towball

Part #: 30395 1× Dark Bluish Gray

Technic Pin 3/4

Part #: 32002 3× Tan

Technic Beam 1 x ...

Part #: 32009 4× Black

Technic Axle and ...

Part #: 32013 9× Black

Technic Axle and ...

Part #: 32014 2× Red

Technic Axle and ...

Part #: 32034 11× Black

Technic Pin Long ...

Part #: 32054 15× Orange

Technic Pin Long ...

Part #: 32054 17× Black

Technic Axle 2 No...

Part #: 32062 39× Red

Technic Axle 5

Part #: 32073 6× Light Bluish Gray

Technic Bush 1/2 ...

Part #: 32123b 23× Yellow

Technic Beam 2 x ...

Part #: 32140 17× Yellow

Technic Beam 2 x ...

Part #: 32140 8× Black

Technic Axle and ...

Part #: 32184 5× Yellow

Technic Gear 20 T...

Part #: 32198 1× Tan

Technic Beam 3 x ...

Part #: 32250 6× Black

Technic Gear 12 T...

Part #: 32270 9× Black

Technic Beam 1 x ...

Part #: 32271 4× Black

Technic Beam 1 x ...

Part #: 32278 4× Light Bluish Gray

Technic Beam 1 x ...

Part #: 32278 12× Black

Technic Axle and ...

Part #: 32291 2× Black

Technic Beam 1 x ...

Part #: 32316 9× Black

Technic Beam 1 x ...

Part #: 32316 17× Yellow

Technic Beam 1 x ...

Part #: 32449 13× Light Bluish Gray

Technic Beam 1 x ...

Part #: 32523 2× Black

Technic Beam 1 x ...

Part #: 32523 9× Yellow

Technic Beam 1 x ...

Part #: 32524 13× Black

Technic Beam 1 x ...

Part #: 32524 8× Yellow

Technic Beam 1 x ...

Part #: 32525 6× Black

Technic Beam 3 x ...

Part #: 32526 6× Black

Technic Pin Long ...

Part #: 32556 1× Tan

Technic Gear 20 T...

Part #: 35185 2× Blue

Plate Special 1 x...

Part #: 35480 1× Black

Plate 1 x 3

Part #: 3623 4× Black

Technic Gear 24 T...

Part #: 3648b 2× Dark Bluish Gray

Technic Pin witho...

Part #: 3673 2× Light Bluish Gray

Technic Brick 1 x...

Part #: 3701 1× Black

Technic Axle 4

Part #: 3705 6× Black

Technic Axle 6

Part #: 3706 2× Red

Technic Axle 6

Part #: 3706 2× Black

Technic Axle 8

Part #: 3707 2× Red

Plate 1 x 4

Part #: 3710 1× Black

Technic Bush

Part #: 3713 6× Red

Technic Axle 10

Part #: 3737 1× Black

Technic Gear Rack...

Part #: 3743 10× Black

String Cord Mediu...

Part #: 37597c300 1× Dark Bluish Gray

Technic Brick 1 x...

Part #: 3895 6× Black

Brick Round 2 x 2...

Part #: 3941 2× Trans-Orange

Technic Beam 1 x ...

Part #: 40490 2× Yellow

Technic Beam 1 x ...

Part #: 40490 16× Dark Bluish Gray

Plate Special 1 x...

Part #: 4081b 1× Black

Technic Linear Ac...

Part #: 40918 1× Light Bluish Gray

Technic Beam 1 x ...

Part #: 41239 11× Yellow

Technic Beam 1 x ...

Part #: 41677 18× Light Bluish Gray

Technic Axle and ...

Part #: 41678 6× Light Bluish Gray

Technic Wedge Bel...

Part #: 4185 1× Light Bluish Gray

Technic Axle and ...

Part #: 42003 9× Light Bluish Gray

Technic Driving R...

Part #: 42195 6× Light Bluish Gray

Technic Driving R...

Part #: 42195 9× Black

Technic Pin 1/2 w...

Part #: 4274 29× Light Bluish Gray

Technic Axle Pin ...

Part #: 43093 54× Blue

Technic Beam 1 x ...

Part #: 43857 1× Black

Technic Axle 7

Part #: 44294 7× Yellow

Technic Axle 3

Part #: 4519 28× Light Bluish Gray

Technic Pin Conne...

Part #: 46189 2× Black

Technic Pin Conne...

Part #: 48496 3× Black

Technic Pin Conne...

Part #: 48989 8× Light Bluish Gray

Wheel 30.4 x 20 w...

Part #: 56145 8× Yellow

Technic Axle Conn...

Part #: 59443 10× Black

Chain 16L [21 Links]

Part #: 60169 1× Light Bluish Gray

Technic Beam 1 x ...

Part #: 60483 8× Dark Bluish Gray

Technic Beam 3 x ...

Part #: 60484 4× Black

Technic Beam 3 x ...

Part #: 60484 8× Yellow

Technic Beam 3 x ...

Part #: 61408 10× Light Bluish Gray

Technic Beam 3 x ...

Part #: 61408 3× Black

Technic Axle and ...

Part #: 61904 1× Dark Bluish Gray

Technic Axle and ...

Part #: 63869 1× Black

Technic Beam 5 x ...

Part #: 64178 2× Light Bluish Gray

Technic Beam Fram...

Part #: 64179 1× Black

Technic Beam Fram...

Part #: 64179 4× Light Bluish Gray

Technic Panel Fai...

Part #: 64391 1× Black

Technic Panel Fai...

Part #: 64393 1× Yellow

Technic Panel Fai...

Part #: 64681 1× Yellow

Technic Panel Fai...

Part #: 64683 1× Black

Technic Axle and ...

Part #: 6536 11× Black

Technic Axle and ...

Part #: 6536 17× Yellow

Technic Pin Long ...

Part #: 6558 106× Blue

Sticker Sheet for...

Part #: 65625 1× [No Color/Any Color]

Technic Axle 3 wi...

Part #: 6587 3× Dark Tan

Part #: 6629 4× Black

Tile 1 x 6 with G...

Part #: 6636 7× Black

Plate Round 1 x 1...

Part #: 85861 5× Black

Technic Pin Conne...

Part #: 85940 2× Black

Technic Pin Conne...

Part #: 87082 6× Black

Technic Axle 4 wi...

Part #: 87083 7× Dark Bluish Gray

Technic Gear Rack...

Part #: 87761 4× Black

Technic Axle and ...

Part #: 92907 4× Light Bluish Gray

Brick Round 2 x 2...

Part #: 92947 3× Black

Brick Curved 4 x ...

Part #: 93273 1× Black

Technic Gear 16 T...

Part #: 94925 1× Light Bluish Gray

Tile Round 1 x 1

Part #: 98138 8× Trans-Clear

Tile Round 1 x 1

Part #: 98138 12× Trans-Orange

Tile Round 1 x 1

Part #: 98138 1× Trans-Green

Tile Round 1 x 1

Part #: 98138 5× Trans-Red

Technic Beam Tria...

Part #: 99773 2× Black

This set offers a solid collection of Technic pins and connectors, useful for MOC builders. The prevalence of blue and black elements provides a good base for constructing mechanical models.

🛒 Where to Buy

eBay

Search listings

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💎 Notable Parts

Blue Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots (106x) $5.30

Blue Technic Axle Pin with Friction Ridges Lengthwise (54x) $2.70

Black Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise (33x) $3.30

Black Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] (17x) $2.55

Orange Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] (15x) $2.25

Est. BrickLink Part Value

$16.10

💡 MOC Potential

🚗 Heavy-duty tow truck with working winch

🚗 Construction site vehicle with modified crane arm

🤖 Industrial robot arm with multiple joints

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 3 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

The LEGO Technic Mobile Crane 42108 receives mixed reactions from the LEGO community, with a neutral overall sentiment. While many videos showcase the unboxing, building, and features, a clear consensus on specific pros and cons is not evident from the provided data.

LEGO 42108 Test | LEGO Mobile Crane Review | LEGO Technic 42108 LEGO | New LEGO Technic 2020

All The Bricks Together • 91.5K views Review

LEGO Technic Mobile Crane Set 42108 | REVIEW

Beyond the Brick • 75.9K views Review

LEGO Technic set 42108 Mobile Crane Unboxing build showcase

KEEP ON BRICKING • 24.4K views Unboxing

Community Sentiment

Based on 3 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

3 YouTube reviews

BlockTalk AI Summary

JANG's LEGO Reviews offers an independent review, while Beyond the Brick provides a general overview of the set's features. RacingBrick focuses on comparing the Mobile Crane to other Technic cranes, highlighting its place in the broader LEGO crane lineup.