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The Biggest LEGO Technic Sets Ever

Show great technique with these technical builds

Since it was introduced back in 1977, LEGO Technic has been challenging builders worldwide with its more complex engineering problems and build techniques.

Over the years LEGO Technic sets have got more intricate packing in more features and functionality than ever before.

Join us as we look at the top 10 biggest LEGO Technic sets including a wide range of super cars, cranes and trucks.

Please note: This article includes affiliate links. When you purchase qualifying products from those links we may earn a commission that helps support the site. As an Amazon Associate I earn from qualifying purchases.

10. LEGO Technic Mack Anthem

  • set: 42078
  • pieces: 2,595
  • minifigures:
  • Availability: Retired

We start our top 10 with The Mack Anthem - a beautiful truck recreated in an incredibly satisfying build.

The truck features front-axle steering, rear wheel drive, 6 cylinder straight engine with moving pistons and spinning radiator fan, detailed driver’s cab with opening doors, adjustable seats, steering wheel, dashboard, sun visors and a bunk bed, and adjustable wing mirrors.

The trailer let's the set down a little with far less detail - but completes the overall build.

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9. LEGO Technic Mobile Crane MK II

  • set: 42009
  • pieces: 2,606
  • minifigures: 0
  • Availability: Retired

The Mobile Crane MKII offers a portable Technic crane in bright yellow.

With the crane's boom fully extended, this model can reach a height of up to 77cm.

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8. LEGO Technic Porsche 911 GT3 RS

  • set: 42056
  • pieces: 2,704
  • minifigures: 0
  • Availability: Retired

The iconic Porsche 911 GT3 RS is replicated in LEGO Technic featuring adjustable rear spoiler, headlights and taillights, red suspension springs, original-design rims with RS emblem, detailed brake callipers, low-profile tires, working gearbox, working steering wheel with gearshift paddles, detailed seating, glove compartment with unique model serial number, opening doors, opening hood containing a suitcase, and an opening rear lid with detailed flat 6 engine.

Also, it's orange.

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7. LEGO Technic Mercedes-Benz Arocs 3245

  • set: 42043
  • pieces: 2,793
  • minifigures: 0
  • Availability: Retired

At 2793 pieces we have the Mercedes-Bens Articulated Construction Truck.

The motorized functions of this particular model allow you to operate the ultra-versatile crane arm mechanism, open and close the grabber, extend the outriggers or raise and lower the tipper body.

With it's boom extended, the Mercedes-Benz Arocs measures over 22 inches (57cm) high, 29 inches (75cm) long and 6 inches (17cm) wide.

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6. LEGO Technic Bugatti Chiron

  • set: 42083
  • pieces: 3,599
  • minifigures: 0
  • Availability: Out now

With two tones of beautiful blue, we have this 1/8 scale replica of the Bugatti Chiron featuring a Technic fully-functioning 8-speed gear box and the most sophisticated LEGO engine yet.

The set is 3599 pieces large and measures measures over 5 inches (14cm) high, 22 inches (56cm) long and 12.5 inches (32cm) wide.

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5. LEGO Technic Lamborghini Sian FKP 37

  • set: 42115
  • pieces: 3,696
  • minifigures: 0
  • Availability: Out now

Available in a stunning green and black livery is this LEGO Technic Lamborghini Sián FKP 37.

Authentic features include the 8-speed transmission, activated by the movable paddle gearshift, V12 engine with moving pistons, and 4-wheel drive. Use the steering wheel to position the car, then check out the front and rear suspension. Just like the full-size super sports car, this model car features classic scissor opening doors.

3696 pieces of LEGO Technic are sure to keep you busy for many hours.

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4. LEGO Cat D11 Bulldozer

  • set: 42131
  • pieces: 3,854
  • minifigures: 0
  • Availability: Out now

The latest set on our LEGO Technic list is the LEGO Cat D11 Bulldozer which can be controlled from the LEGO CONTROL+ app.

This replica measures over 10 inches (26 cm) high, 22 inches (57 cm) long and 14.5 inches (37 cm) wide.

New to this set is a large caterpillar track that can be tightened and loosened.

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3. LEGO Technic Bucket Wheel Excavator

  • set: 42055
  • pieces: 3,929
  • minifigures: 0
  • Availability: Retired

The third largest LEGO Technic model in this list is the Bucket Wheel Excavator containing 3929 pieces.

Now retired, the Bucket Wheel Excavator came with an array of motorized functions, including forward and reverse driving, moving conveyor belts, working boom with revolving bucket wheel, and a rotating superstructure.

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2. LEGO Technic Rough Terrain Crane

  • set: 42082
  • pieces: 4,057
  • minifigures: 0
  • Availability: Retired

This 4,057 piece red LEGO Technic crane measures over 39 inches (100cm) high, 25 inches (66cm) long and 10 inches (26cm) wide in working position, and over 10 inches (27cm) high, 29 inches (76cm) long and 7 inches (20cm) wide in driving position.

The Rough Terrain Crane also includes 2 opening compartments with tools, chains and a fire extinguisher, plus 4 outrigger landing plates and 4 LEGO Technic building sections that can be lifted and assembled.

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1. LEGO Technic Liebherr R 9800 Excavator

  • set: 42100
  • pieces: 4,108
  • minifigures: 0
  • Availability: Out now

2019's Liebherr R 9800 Excavator takes the crown for the largest LEGO Technic set with 51 more pieces than previous Technic giant, the Rough Terrain Crane.

This creation is a replica model of the real Liebherr Excavator and is powered by 2 advanced Smart Hubs with 7 motors. Hooking up to an app on your smartphone, the crane comes to life allowing multi directional driving and rotation; and control of the boom, arm and bucket.

It measures over 15 inches (39cm) high, 25 inches (65cm) long and 10 inches (27cm) wide and costs $449.99 / £399.99.

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