Reach New Heights!
With the Technic Mobile Crane

Build this 1,292-piece model with realistic features like 8-wheel steering and a telescopic arm that extends to 30 inches!

🏛 Technic
Set #42108

Mobile Crane

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

🏆 Best For: Ideal for teens and adults who enjoy Technic models and realistic mechanical functions. ⏱ 4.5 hr build 🧩 1,292 pcs
★★★★☆ 4.1

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.

📝 Our Take

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.

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🧱 Building Experience

🧩
1,292
Pieces
4.5h
Build Time
📊
Intermediate
Difficulty
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

→ Price stable
B
Investment Grade
⏳ Active
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

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.

📦 Full Parts Inventory - 124 unique parts • 998 total pieces

Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Technic Axle Pin ...
Part #: 11214 17× Red
Technic Beam 1 x 5 Thin with Axle Holes on Ends Technic Beam 1 x ...
Part #: 11478 Black
Technic Panel Curved 11 x 3 with 10 Pin Holes through Panel Surface Technic Panel Cur...
Part #: 11954 11× Yellow
Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner Ring Wheel 18 x 8 with...
Part #: 13971 Light Bluish Gray
Tile 2 x 2 Corner Tile 2 x 2 Corner
Part #: 14719 Light Bluish Gray
Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] Technic Beam 3 x ...
Part #: 14720 Yellow
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Technic Pin Conne...
Part #: 15100 10× Yellow
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Technic Pin Conne...
Part #: 15100 12× Blue
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Technic Pin Conne...
Part #: 15100 33× Black
Tyre 49.53 x 20 Tyre 49.53 x 20
Part #: 15413 Black
Technic Panel 3 x 11 x 1 Technic Panel 3 x...
Part #: 15458 Yellow
Tile Round 2 x 2 with Hole Tile Round 2 x 2 ...
Part #: 15535 Black
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Technic Gear 20 T...
Part #: 18575 Tan
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Technic Axle Pin ...
Part #: 18651 11× Black
Technic Pin Connector Round 1L [Beam] Technic Pin Conne...
Part #: 18654 Black
Technic Turntable Large Type 3 Top, 60 Tooth Technic Turntable...
Part #: 18938 Black
Technic Turntable Large Type 3 Base Technic Turntable...
Part #: 18939 Light Bluish Gray
Technic Gear 16 Tooth with Clutch on Both Sides Technic Gear 16 T...
Part #: 18946 Red
Technic Pin Connector Hub with 1 Axle Technic Pin Conne...
Part #: 22961 Light Bluish Gray
Technic Axle 11 Technic Axle 11
Part #: 23948 Yellow
Technic Panel Curved and Bent 6 x 3 Technic Panel Cur...
Part #: 24116 Yellow
Technic Panel Curved and Bent 6 x 3 Technic Panel Cur...
Part #: 24116 Blue
Technic Panel Curved and Bent 6 x 3 Technic Panel Cur...
Part #: 24116 Black
Tile 1 x 4 with Groove Tile 1 x 4 with G...
Part #: 2431 Light Bluish Gray
Technic Axle 3 with Stop Technic Axle 3 wi...
Part #: 24316 21× Reddish Brown
Plate 2 x 12 Plate 2 x 12
Part #: 2445 Black
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Brick Round 1 x 1...
Part #: 25214 Black
Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Plate Round 2 x 2...
Part #: 2654 Trans-Orange
Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Plate Round 2 x 2...
Part #: 2654 Black
Technic Disc 3 x 3 Technic Disc 3 x 3
Part #: 2723 Black
Technic Brick 1 x 10 [9 Pin Holes] Technic Brick 1 x...
Part #: 2730 Black
Technic Axle Towball Technic Axle Towball
Part #: 2736 Light Bluish Gray
Technic Pin with Friction Ridges Lengthwise and Center Slots Technic Pin with ...
Part #: 2780 Black
Technic Pin Connector Hub with 2 Axles Technic Pin Conne...
Part #: 27940 Dark Bluish Gray
Technic Steering Wheel Small (3 Studs Diameter) Technic Steering ...
Part #: 2819 Light Bluish Gray
Technic Engine Crankshaft Technic Engine Cr...
Part #: 2853 Light Bluish Gray
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Black
Plate 2 x 8 Plate 2 x 8
Part #: 3034 Black
Hook with Towball Hook with Towball
Part #: 30395 Dark Bluish Gray
Technic Pin 3/4 Technic Pin 3/4
Part #: 32002 Tan
Technic Beam 1 x 11.5 Double Bent Thick Technic Beam 1 x ...
Part #: 32009 Black
Technic Axle and Pin Connector Angled #1 Technic Axle and ...
Part #: 32013 Black
Technic Axle and Pin Connector Angled #6 - 90° Technic Axle and ...
Part #: 32014 Red
Technic Axle and Pin Connector Angled #2 - 180° Technic Axle and ...
Part #: 32034 11× Black
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Technic Pin Long ...
Part #: 32054 17× Black
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Technic Pin Long ...
Part #: 32054 15× Orange
Technic Axle 2 Notched Technic Axle 2 No...
Part #: 32062 39× Red
Technic Axle 5 Technic Axle 5
Part #: 32073 Light Bluish Gray
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Technic Bush 1/2 ...
Part #: 32123b Yellow
Technic Beam 2 x 4 L-Shape Thick Technic Beam 2 x ...
Part #: 32140 Black
Technic Beam 2 x 4 L-Shape Thick Technic Beam 2 x ...
Part #: 32140 17× Yellow
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Technic Axle and ...
Part #: 32184 Yellow
Technic Gear 20 Tooth Bevel Technic Gear 20 T...
Part #: 32198 Tan
Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Technic Beam 3 x ...
Part #: 32250 Black
Technic Gear 12 Tooth Double Bevel Technic Gear 12 T...
Part #: 32270 Black
Technic Beam 1 x 9 Bent (7 - 3) Thick Technic Beam 1 x ...
Part #: 32271 Black
Technic Beam 1 x 15 Thick Technic Beam 1 x ...
Part #: 32278 Light Bluish Gray
Technic Beam 1 x 15 Thick Technic Beam 1 x ...
Part #: 32278 12× Black
Technic Axle and Pin Connector Perpendicular Double Technic Axle and ...
Part #: 32291 Black
Technic Beam 1 x 5 Thick Technic Beam 1 x ...
Part #: 32316 17× Yellow
Technic Beam 1 x 5 Thick Technic Beam 1 x ...
Part #: 32316 Black
Technic Beam 1 x 4 Thin Technic Beam 1 x ...
Part #: 32449 13× Light Bluish Gray
Technic Beam 1 x 3 Thick Technic Beam 1 x ...
Part #: 32523 Yellow
Technic Beam 1 x 3 Thick Technic Beam 1 x ...
Part #: 32523 Black
Technic Beam 1 x 7 Thick Technic Beam 1 x ...
Part #: 32524 Yellow
Technic Beam 1 x 7 Thick Technic Beam 1 x ...
Part #: 32524 13× Black
Technic Beam 1 x 11 Thick Technic Beam 1 x ...
Part #: 32525 Black
Technic Beam 3 x 5 L-Shape Thick Technic Beam 3 x ...
Part #: 32526 Black
Technic Pin Long without Friction Ridges Technic Pin Long ...
Part #: 32556 Tan
Technic Gear 20 Tooth Double Bevel with Clutch on Both Sides Technic Gear 20 T...
Part #: 35185 Blue
Plate Special 1 x 2 Rounded with 2 Open Studs Plate Special 1 x...
Part #: 35480 Black
Plate 1 x 3 Plate 1 x 3
Part #: 3623 Black
Technic Gear 24 Tooth [New Style with Single Axle Hole] Technic Gear 24 T...
Part #: 3648b Dark Bluish Gray
Technic Pin without Friction Ridges Lengthwise Technic Pin witho...
Part #: 3673 Light Bluish Gray
Technic Brick 1 x 4 [3 Pin Holes] Technic Brick 1 x...
Part #: 3701 Black
Technic Axle 4 Technic Axle 4
Part #: 3705 Black
Technic Axle 6 Technic Axle 6
Part #: 3706 Red
Technic Axle 6 Technic Axle 6
Part #: 3706 Black
Technic Axle 8 Technic Axle 8
Part #: 3707 Red
Plate 1 x 4 Plate 1 x 4
Part #: 3710 Black
Technic Bush Technic Bush
Part #: 3713 Red
Technic Axle 10 Technic Axle 10
Part #: 3737 Black
Technic Gear Rack 1 x 4 Technic Gear Rack...
Part #: 3743 10× Black
String Cord Medium Thickness (1mm) 300cm String Cord Mediu...
Part #: 37597c300 Dark Bluish Gray
Technic Brick 1 x 12 [11 Pin Holes] Technic Brick 1 x...
Part #: 3895 Black
Brick Round 2 x 2 with Axle Hole Brick Round 2 x 2...
Part #: 3941 Trans-Orange
Technic Beam 1 x 9 Thick Technic Beam 1 x ...
Part #: 40490 Yellow
Technic Beam 1 x 9 Thick Technic Beam 1 x ...
Part #: 40490 16× Dark Bluish Gray
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Plate Special 1 x...
Part #: 4081b Black
Technic Linear Actuator with Dark Bluish Gray Ends Long Technic Linear Ac...
Part #: 40918 Light Bluish Gray
Technic Beam 1 x 13 Thick Technic Beam 1 x ...
Part #: 41239 11× Yellow
Technic Beam 1 x 2 Thin Technic Beam 1 x ...
Part #: 41677 18× Light Bluish Gray
Technic Axle and Pin Connector Perpendicular Double Split Technic Axle and ...
Part #: 41678 Light Bluish Gray
Technic Wedge Belt Wheel [aka Pulley] Technic Wedge Bel...
Part #: 4185 Light Bluish Gray
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Technic Axle and ...
Part #: 42003 Light Bluish Gray
Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] Technic Driving R...
Part #: 42195 Light Bluish Gray
Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] Technic Driving R...
Part #: 42195 Black
Technic Pin 1/2 Technic Pin 1/2
Part #: 4274 29× Light Bluish Gray
Technic Axle Pin with Friction Ridges Lengthwise Technic Axle Pin ...
Part #: 43093 54× Blue
Technic Beam 1 x 2 Thick Technic Beam 1 x ...
Part #: 43857 Black
Technic Axle 7 Technic Axle 7
Part #: 44294 Yellow
Technic Axle 3 Technic Axle 3
Part #: 4519 28× Light Bluish Gray
Technic Pin Connector 3L with 2 Pins and Center Hole [Pin Ridges Across Part] Technic Pin Conne...
Part #: 46189 Black
Technic Pin Connector Toggle Joint Smooth Double with 2 Pins Technic Pin Conne...
Part #: 48496 Black
Technic Pin Connector Hub Perpendicular 3L with 4 Pins Technic Pin Conne...
Part #: 48989 Light Bluish Gray
Wheel 30.4 x 20 without Pinholes, with Reinforced Rim Wheel 30.4 x 20 w...
Part #: 56145 Yellow
Technic Axle Connector Smooth [with x Hole + Orientation] Technic Axle Conn...
Part #: 59443 10× Black
Chain 16L [21 Links] Chain 16L [21 Links]
Part #: 60169 Light Bluish Gray
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Technic Beam 1 x ...
Part #: 60483 Dark Bluish Gray
Technic Beam 3 x 3 T-Shape Thick Technic Beam 3 x ...
Part #: 60484 Yellow
Technic Beam 3 x 3 T-Shape Thick Technic Beam 3 x ...
Part #: 60484 Black
Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin Hole Technic Beam 3 x ...
Part #: 61408 Black
Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin Hole Technic Beam 3 x ...
Part #: 61408 10× Light Bluish Gray
Technic Axle and Pin Connector Block 4 x 3 x 2 1/2 [Linear Actuator Holder] Technic Axle and ...
Part #: 61904 Dark Bluish Gray
Technic Axle and Pin Connector Perpendicular Triple Technic Axle and ...
Part #: 63869 Black
Technic Beam 5 x 11 with 3 x 5 Opening Frame Thick Technic Beam 5 x ...
Part #: 64178 Light Bluish Gray
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Technic Beam Fram...
Part #: 64179 Black
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Technic Beam Fram...
Part #: 64179 Light Bluish Gray
Technic Panel Fairing # 4 Small Smooth Long, Side B Technic Panel Fai...
Part #: 64391 Black
Technic Panel Fairing #6 Long Smooth, Side B Technic Panel Fai...
Part #: 64393 Yellow
Technic Panel Fairing #5 Long Smooth, Side A Technic Panel Fai...
Part #: 64681 Yellow
Technic Panel Fairing # 3 Small Smooth Long, Side A Technic Panel Fai...
Part #: 64683 Black
Technic Axle and Pin Connector Perpendicular Technic Axle and ...
Part #: 6536 17× Yellow
Technic Axle and Pin Connector Perpendicular Technic Axle and ...
Part #: 6536 11× Black
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Technic Pin Long ...
Part #: 6558 106× Blue
Sticker Sheet for Set 42108-1 Sticker Sheet for...
Part #: 65625 [No Color/Any Color]
Technic Axle 3 with Stud Technic Axle 3 wi...
Part #: 6587 Dark Tan
Technic Gear 12 Tooth Bevel Technic Gear 12 T...
Part #: 6589 Tan
Technic Pin with Friction Ridges Lengthwise and Towball Technic Pin with ...
Part #: 6628 Red
Technic Beam 1 x 9 Bent (6 - 4) Thick Technic Beam 1 x ...
Part #: 6629 Black
Tile 1 x 6 with Groove Tile 1 x 6 with G...
Part #: 6636 Black
Plate Round 1 x 1 with Open Stud Plate Round 1 x 1...
Part #: 85861 Black
Technic Pin Connector Double with Bar [2 Holes] Technic Pin Conne...
Part #: 85940 Black
Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes] Technic Pin Conne...
Part #: 87082 Black
Technic Axle 4 with Stop Technic Axle 4 wi...
Part #: 87083 Dark Bluish Gray
Technic Gear Rack 1 x 7 with Axle and Pin Holes Technic Gear Rack...
Part #: 87761 Black
Technic Axle and Pin Connector Perpendicular Split Technic Axle and ...
Part #: 92907 Light Bluish Gray
Brick Round 2 x 2 [Grill] Brick Round 2 x 2...
Part #: 92947 Black
Slope Curved 4 x 1 Double with No Studs Slope Curved 4 x ...
Part #: 93273 Black
Technic Gear 16 Tooth Reinforced [New Style] Technic Gear 16 T...
Part #: 94925 Light Bluish Gray
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 Trans-Green
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 Trans-Clear
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 12× Trans-Orange
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 Trans-Red
Technic Beam Triangle Thin [Type II] Technic Beam Tria...
Part #: 99773 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.

💎 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

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Charts Inventory Statistics

124
Unique Parts
998
Total Pieces
0
Minifigures
Inventory Version: 1