Take Control!
The 4x4 X-treme Off-Roader is here!

Experience app-controlled adventures with this 958-piece LEGO Technic set. Conquer any terrain with its rugged design and high-rise suspension.

🏛 Technic
Set #42099

4x4 X-treme Off-Roader

The 4x4 X-treme Off-Roader is a rugged beast of a Technic set.

Before you buy

Who it's for
Ages 11+ · Intermediate build Ideal for teens and adults who enjoy motorized Technic models and remote-control vehicles.
Build
958 pieces · about 4.5 hours Build time is an estimate.
Price
$249.99 list price · 26.1¢ per piece
Availability
Retired at LEGO
★★★★☆ 4.0 community rating from 165 ratings

Fans appreciate the set's robust design and the engaging CONTROL+ app integration. Some criticize the all-black color scheme and the reliance on the app for full functionality.

📝 Our Take

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

The 4x4 X-treme Off-Roader is a rugged beast of a Technic set. With its motorized functions and chunky tires, it's designed to tackle any terrain you can imagine (at least in your living room). The CONTROL+ app integration adds a modern twist, allowing for precise control and engaging play.

This set is perfect for Technic enthusiasts and those looking for a fun, interactive building experience. The build is challenging but rewarding, and the remote-control functionality adds a layer of playability that's hard to resist. It's also a great introduction to the world of motorized LEGO models.

Skip this if you prefer display models or are intimidated by complex Technic builds. While the Off-Roader looks cool, its primary focus is on play, and the all-black color scheme might not appeal to everyone. Consider the Land Rover Defender (42110-1) for a more display-oriented Technic vehicle.

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How does the CONTROL+ app enhance the play experience? What are the limitations of the vehicle's off-road capabilities? How does this set compare to other motorized Technic vehicles in terms of value? What are some creative ways to display this set to showcase its features?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI
🧩
958
Pieces
⏱
4.5h
Estimated Build Time
📊
Intermediate
Difficulty
📏
19cm × 33cm × 22cm
Dimensions
Build Highlights:
  • Building the complex drivetrain and suspension system
  • Integrating the CONTROL+ app for remote control
  • Assembling the robust chassis and bodywork
  • Testing the vehicle's off-road capabilities

📈 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
B
Investment Grade
⏳ Retired
The 4x4 X-treme Off-Roader (42099-1) presents a moderate investment opportunity. As a retired Technic set with motorized functions, it appeals to a specific niche of collectors. Its value will likely appreciate over time, but not as dramatically as some licensed sets. The relatively high piece count and CONTROL+ integration contribute to its collectibility. However, the all-black color scheme might limit its broad appeal. Keep an eye on the condition of the set, as the electronic components need to be in working order for optimal value.

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

⚖ Compare Similar Sets

Compared to other Technic vehicles like the Land Rover Defender (42110-1) or the Liebherr R 9800 Excavator (42100-1), the 4x4 X-treme Off-Roader prioritizes playability and remote-control functionality over sheer display presence. While the Defender offers a more detailed and realistic aesthetic, the Off-Roader provides a more engaging and interactive experience. If you're looking for a set to drive and experiment with, the Off-Roader is a great choice. If you prefer a display model with intricate details, consider the Defender.

📦 Parts Inventory

Official piece count
958
Parts cataloged in this inventory
112 unique parts, 958 pieces
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Technic Axle Pin ...
Part #: 11214 30× Red
Technic Beam 1 x 5 Thin with Axle Holes on Ends Technic Beam 1 x ...
Part #: 11478 6× Black
Technic Panel Fairing #21 5L Small Smooth, Side B Technic Panel Fai...
Part #: 11946 1× Black
Technic Panel Fairing #22 5L Small Smooth, Side A Technic Panel Fai...
Part #: 11947 1× Black
Technic Panel Curved 11 x 3 with 10 Pin Holes through Panel Surface Technic Panel Cur...
Part #: 11954 3× Black
Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes] Technic Beam 3 x ...
Part #: 14720 2× Light Bluish Gray
Wheel 56 x 34 Technic Racing Medium with 6 Pin Holes Wheel 56 x 34 Tec...
Part #: 15038 4× Black
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Technic Pin Conne...
Part #: 15100 4× Blue
Technic Panel 3 x 11 x 1 Technic Panel 3 x...
Part #: 15458 3× Bright Light Orange
Technic Panel 3 x 11 x 1 Technic Panel 3 x...
Part #: 15458 1× Black
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Technic Gear 20 T...
Part #: 18575 6× Tan
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Technic Axle Pin ...
Part #: 18651 6× Black
Technic Pin Connector Round 1L [Beam] Technic Pin Conne...
Part #: 18654 17× White
Technic Pin Connector Round 1L [Beam] Technic Pin Conne...
Part #: 18654 10× Black
Technic Turntable Large Type 3 Top, 60 Tooth Technic Turntable...
Part #: 18938 2× Black
Technic Turntable Large Type 3 Base Technic Turntable...
Part #: 18939 2× Light Bluish Gray
Technic Panel 5 x 11 x 1 Tapered Technic Panel 5 x...
Part #: 18945 2× Bright Light Orange
Technic Driving Ring Connector Technic Driving R...
Part #: 18948 1× White
Hub, Powered Up 4-Port (Technic Control+) - Clip Opening Hub, Powered Up 4...
Part #: 22127 1× Light Bluish Gray
Motor, Large, Powered Up Motor, Large, Pow...
Part #: 22169 1× Dark Bluish Gray
Motor, XL, Powered Up Motor, XL, Powere...
Part #: 22172 2× Dark Bluish Gray
Technic Pin Connector Hub with 1 Axle Technic Pin Conne...
Part #: 22961 2× Red
Technic Pin Connector Hub with 1 Axle Technic Pin Conne...
Part #: 22961 1× Light Bluish Gray
Tyre 107 x 44 Tractor Tyre 107 x 44 Tra...
Part #: 23798 4× Black
Technic Panel Curved and Bent 6 x 3 Technic Panel Cur...
Part #: 24116 2× Light Bluish Gray
Technic Axle 3 with Stop Technic Axle 3 wi...
Part #: 24316 8× Reddish Brown
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 12× Black
Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Plate Round 2 x 2...
Part #: 2654 2× Trans-Clear
Technic Axle Towball Technic Axle Towball
Part #: 2736 2× Light Bluish Gray
Technic Pin with Friction Ridges Lengthwise and Center Slots Technic Pin with ...
Part #: 2780 144× Black
Technic Steering Wheel Small (3 Studs Diameter) Technic Steering ...
Part #: 2819 1× Light Bluish Gray
Plate 1 x 2 Plate 1 x 2
Part #: 3023 2× Trans-Red
Plate 1 x 2 Plate 1 x 2
Part #: 3023 2× Light Bluish Gray
Plate 1 x 2 Plate 1 x 2
Part #: 3023 6× Trans-Clear
Plate 1 x 1 Plate 1 x 1
Part #: 3024 2× Trans-Red
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b 2× Trans-Clear
Tile 1 x 1 with Groove Tile 1 x 1 with G...
Part #: 3070b 10× Trans-Clear
Tile 1 x 1 with Groove Tile 1 x 1 with G...
Part #: 3070b 2× Trans-Orange
Technic Pin 3/4 Technic Pin 3/4
Part #: 32002 2× Tan
Technic Link 1 x 6 without Stoppers Technic Link 1 x ...
Part #: 32005a 8× Black
Technic Beam 1 x 11.5 Double Bent Thick Technic Beam 1 x ...
Part #: 32009 2× Bright Light Orange
Technic Beam 1 x 11.5 Double Bent Thick Technic Beam 1 x ...
Part #: 32009 4× Black
Technic Axle and Pin Connector Angled #1 Technic Axle and ...
Part #: 32013 14× Black
Technic Axle and Pin Connector Angled #6 - 90° Technic Axle and ...
Part #: 32014 2× Black
Technic Axle and Pin Connector Angled #5 - 112.5° Technic Axle and ...
Part #: 32015 2× Light Bluish Gray
Technic Axle and Pin Connector Angled #2 - 180° Technic Axle and ...
Part #: 32034 2× Light Bluish Gray
Technic Axle and Pin Connector Angled #2 - 180° Technic Axle and ...
Part #: 32034 5× Black
Technic Axle Connector with Axle Hole Technic Axle Conn...
Part #: 32039 2× Yellow
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Technic Pin Long ...
Part #: 32054 40× Black
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Technic Pin Long ...
Part #: 32054 3× Orange
Technic Axle 2 Notched Technic Axle 2 No...
Part #: 32062 29× Red
Technic Axle 5 Technic Axle 5
Part #: 32073 5× Yellow
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Technic Bush 1/2 ...
Part #: 32123b 2× Light Bluish Gray
Technic Axle and Pin Connector Toggle Joint Smooth Technic Axle and ...
Part #: 32126 4× Black
Technic Beam 2 x 4 L-Shape Thick Technic Beam 2 x ...
Part #: 32140 21× Black
Technic Beam 2 x 4 L-Shape Thick Technic Beam 2 x ...
Part #: 32140 1× Dark Azure
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Technic Axle and ...
Part #: 32184 1× Yellow
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Technic Axle and ...
Part #: 32184 5× Light Bluish Gray
Technic Axle and Pin Connector Angled #4 - 135° Technic Axle and ...
Part #: 32192 4× Black
Technic Gear 12 Tooth Double Bevel Technic Gear 12 T...
Part #: 32270 5× Black
Technic Beam 1 x 15 Thick Technic Beam 1 x ...
Part #: 32278 2× Bright Light Orange
Technic Beam 1 x 15 Thick Technic Beam 1 x ...
Part #: 32278 8× Black
Technic Axle and Pin Connector Perpendicular Double Technic Axle and ...
Part #: 32291 4× Black
Technic Beam 1 x 5 Thick Technic Beam 1 x ...
Part #: 32316 12× Dark Bluish Gray
Technic Beam 1 x 5 Thick Technic Beam 1 x ...
Part #: 32316 1× Bright Light Orange
Technic Beam 1 x 5 Thick Technic Beam 1 x ...
Part #: 32316 1× White
Technic Beam 1 x 3 Thick Technic Beam 1 x ...
Part #: 32523 4× Bright Light Orange
Technic Beam 1 x 3 Thick Technic Beam 1 x ...
Part #: 32523 4× Lime
Technic Beam 1 x 7 Thick Technic Beam 1 x ...
Part #: 32524 7× Light Bluish Gray
Technic Beam 1 x 11 Thick Technic Beam 1 x ...
Part #: 32525 9× Black
Technic Beam 3 x 5 L-Shape Thick Technic Beam 3 x ...
Part #: 32526 11× Dark Bluish Gray
Technic Pin Long without Friction Ridges Technic Pin Long ...
Part #: 32556 6× Tan
Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced Technic Beam 3 x ...
Part #: 33299b 2× Black
Technic Axle 4 Technic Axle 4
Part #: 3705 10× Black
Technic Axle 6 Technic Axle 6
Part #: 3706 2× Black
Technic Axle 12 Technic Axle 12
Part #: 3708 1× Red
Plate 1 x 4 Plate 1 x 4
Part #: 3710 2× Black
Technic Bush Technic Bush
Part #: 3713 6× Light Bluish Gray
Technic Axle 10 Technic Axle 10
Part #: 3737 1× Red
Technic Axle 10 Technic Axle 10
Part #: 3737 6× Black
Technic Connector Beam 3 x 3 Technic Connector...
Part #: 39793 5× Black
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Plate Round 2 x 2...
Part #: 4032a 2× Black
Technic Beam 1 x 9 Thick Technic Beam 1 x ...
Part #: 40490 4× Dark Bluish Gray
Technic Beam 1 x 13 Thick Technic Beam 1 x ...
Part #: 41239 3× Dark Bluish Gray
Technic Beam 1 x 2 Thin Technic Beam 1 x ...
Part #: 41677 4× Black
Technic Beam 1 x 2 Thin Technic Beam 1 x ...
Part #: 41677 6× Red
Technic Axle and Pin Connector Perpendicular Double Split Technic Axle and ...
Part #: 41678 4× Orange
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Technic Axle and ...
Part #: 42003 10× Black
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes Technic Axle and ...
Part #: 42003 4× Red
Technic Pin 1/2 without Friction Ridges Technic Pin 1/2 w...
Part #: 4274 18× Blue
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 1× Blue
Technic Axle 7 Technic Axle 7
Part #: 44294 1× Light Bluish Gray
Technic Axle 3 Technic Axle 3
Part #: 4519 23× Light Bluish Gray
Technic Steering Wheel Hub with Planetary Gear Reduction Technic Steering ...
Part #: 46490 4× Light Bluish Gray
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Bar 1L with Clip ...
Part #: 48729b 2× Black
Technic Pin Connector Hub Perpendicular 3L with 4 Pins Technic Pin Conne...
Part #: 48989 5× Light Bluish Gray
Wire Clip with Axle Hole Wire Clip with Ax...
Part #: 49283 1× White
Wire Clip with Axle Hole Wire Clip with Ax...
Part #: 49283 1× Blue
Wire Clip with Axle Hole Wire Clip with Ax...
Part #: 49283 1× Red
Sticker Sheet for Set 42099-1 Sticker Sheet for...
Part #: 51341 1× [No Color/Any Color]
Technic Steering / CV Ball Joint Female with 3L Axle Technic Steering ...
Part #: 52730 4× Dark Bluish Gray
Technic Steering / CV Ball Joint Male 3L Technic Steering ...
Part #: 52731 8× Light Bluish Gray
Technic Steering Arm 5.5 x 2 with Towball Socket Rounded, Chamfered Technic Steering ...
Part #: 57515 4× Dark Bluish Gray
Technic Axle 5.5 with Stop [Rounded Short End] Technic Axle 5.5 ...
Part #: 59426 1× Dark Bluish Gray
Technic Axle Connector Smooth [with x Hole + Orientation] Technic Axle Conn...
Part #: 59443 1× Orange
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole Technic Beam 1 x ...
Part #: 60483 14× Orange
Technic Beam 3 x 3 T-Shape Thick Technic Beam 3 x ...
Part #: 60484 7× Light Bluish Gray
Technic Pin Connector Round [Slotted] Technic Pin Conne...
Part #: 62462 2× Light Bluish Gray
Technic Panel Curved 11 x 3 with 2 Pin Holes through Panel Surface Technic Panel Cur...
Part #: 62531 2× Bright Light Orange
Technic Gear Differential with Inner Tabs and Closed Center, 28 Bevel Teeth [Beveled Edge] Technic Gear Diff...
Part #: 62821b 2× Dark Bluish Gray
Technic Axle and Pin Connector Perpendicular Triple Technic Axle and ...
Part #: 63869 13× Black
Technic Axle and Pin Connector Perpendicular Triple Technic Axle and ...
Part #: 63869 2× Light Bluish Gray
Technic Beam 5 x 11 with 3 x 5 Opening Frame Thick Technic Beam 5 x ...
Part #: 64178 3× Light Bluish Gray
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick Technic Beam Fram...
Part #: 64179 2× Black
Technic Panel Fairing #17 Large Smooth, Side A Technic Panel Fai...
Part #: 64392 1× Bright Light Orange
Technic Panel Fairing #18 Large Smooth, Side B Technic Panel Fai...
Part #: 64682 1× Bright Light Orange
Technic Panel 5 x 11 x 1 Technic Panel 5 x...
Part #: 64782 1× Bright Light Orange
Technic Axle and Pin Connector Perpendicular Technic Axle and ...
Part #: 6536 26× Black
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Technic Pin Long ...
Part #: 6558 76× Blue
Technic Gear 12 Tooth Bevel Technic Gear 12 T...
Part #: 6589 6× Tan
Technic Pin with Friction Ridges Lengthwise and Towball Technic Pin with ...
Part #: 6628 10× Red
Technic Beam 1 x 9 Bent (6 - 4) Thick Technic Beam 1 x ...
Part #: 6629 6× Black
Technic Beam 1 x 3 Thin Technic Beam 1 x ...
Part #: 6632 12× Dark Bluish Gray
Hose Rigid 3mm D. 14L / 11.2cm Hose Rigid 3mm D....
Part #: 75c14 2× Black
Technic Shock Absorber 6.5L with Hard Spring, Tight Coil in Middle [Complete Assembly] Technic Shock Abs...
Part #: 76537 4× Red
Technic Panel Fairing #1 Small Smooth Short, Side A Technic Panel Fai...
Part #: 87080 1× Bright Light Orange
Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Big Squared Pin Holes] Technic Pin Conne...
Part #: 87082 6× Light Bluish Gray
Technic Axle 4 with Stop Technic Axle 4 wi...
Part #: 87083 7× Dark Bluish Gray
Technic Panel Fairing #2 Small Smooth Short, Side B Technic Panel Fai...
Part #: 87086 1× Bright Light Orange
Technic Gear Rack 1 x 7 with Axle and Pin Holes Technic Gear Rack...
Part #: 87761 1× Black
Technic Axle 4 with Centre Stop Technic Axle 4 wi...
Part #: 99008 5× Tan
Technic Beam Triangle Thin [Type II] Technic Beam Tria...
Part #: 99773 2× Yellow
The set contains a good selection of Technic pins and connectors, useful for building complex mechanisms. The abundance of black elements is suitable for creating custom chassis and bodywork.

🛒 Where to Buy

💎 Notable Parts

Blue Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots (76x) $3.80
Blue Technic Axle Pin with Friction Ridges Lengthwise (54x) $2.70
Black Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] (40x) $2.00
Black Technic Axle and Pin Connector Perpendicular (26x) $1.30
Black Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end (12x) $1.80
Est. BrickLink Part Value
$11.60

💡 MOC Potential

🚗 Custom off-road vehicles with unique suspension systems
🤖 Transform it into a remote-controlled robot with articulated limbs
🚗 Create a modified version of the vehicle with a different body style or functionality

Community Insights

Real opinions from Reddit and YouTube

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📖 Building Instructions 2

4x4 X-treme Off-Roader Instructions
BI 3104, 220+4/65+200G, 42099 V29/V118
Download PDF
4x4 X-treme Off-Roader Instructions
BI 3104, 220+4/65+200G, 42099 V39/V142
Download PDF

Charts Inventory Statistics

112
Unique Parts
958
Official Piece Count
958
Cataloged Inventory Pieces
0
Minifigures
12
Spare Parts
Inventory Version: 1

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