Best LEGO Technic Sets | LEGOs for STEM

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LEGO Technic sets are easily recommended STEM toys made for children eight years and older. A step above your average LEGO toys, these sets promote engineering while remaining accessible and fun for children to do independently. From realistic construction vehicles to fully-functioning crane systems, these sets are a gentle introduction into STEM. A key feature of Technic sets, that makes then stand out from regular LEGO sets, is the highly functional mechanical components. Technic kits may have functioning winches, rotors, articulated joints, wheels and even gearboxes and differentials! Seeing these key engineering components in miniature is great preparation for their life-sized counterparts.

Here, we’ve collected some of our favorite LEGO Technic sets. These toys are made to work alongside your child’s interests. If your child loves helicopters, get the rescue helicopter. If your child is into race cars, get the Porsche 911. Some are more difficult to assemble than others, so keep that in mind when selecting one!

Related: LEGO Boost vs. Mindstorms

LEGO Technic Rescue Helicopter 42092 Building Kit, 2019 (325 Pieces)

The LEGO Technic Rescue Helicopter is one of the more manageable sets to build, as well as one of the cheapest. This realistic helicopter comes with opening and closing side and rear doors, a working winch, and a rescue stretcher. The winch lowers and raises the stretcher, and children can turn the blade by hand. 

This set can be rebuilt into a futuristic plane, providing even more fun and hours of learning. Of course, you can use this helicopter with other LEGO Technic sets. After being built, this helicopter is entirely open-ended and promotes tinkering. 

LEGO Technic Compact Crawler Crane 42097 Building Kit, New 2019 (920 Pieces)

For children with a little bit more experience, this LEGO Technic Compact Crawler Crane is a great option. It measures 20 inches high and 19 inches long when fully built, making it extremely rewarding when children get done with it! The boom is extendable, and the hoist works – it even has cabling and a safety lock. The whole crane rotates 180-degrees.

When children are done creating the crawler crane, they can also create the compact tower crane, which features the same features packed into a smaller, slightly more difficult to build design.

LEGO Technic Tracked Loader 42094 Building Kit, 2019 (827 Pieces)

Okay, we have to be honest for a second – this kit is probably our favorite. The LEGO Technic Tracked Loader is a little more challenging to build than the others and cost a little bit more, but the open-ended play opportunities that become available after kids complete it are endless. It is probably going to see the most use out of all the building kits we mention in this article. 

This kit allows children to build a completely functional tracked loader. The boom and claw work, there is a 2-speed winch, and the cab completely rotates. It is insanely realistic. It can also be re-built into a tracked dumper. Even if your child doesn’t particularly love construction equipment, they’ll probably get a kick out of building this realistic machine.

LEGO Technic Car Transporter 42098 Toy Truck and Trailer Building Set with Blue Car, Best Engineering and STEM Toy for Boys and Girls, New 2019 (2493 Pieces)

The LEGO Technic Car Transporter is another one that produces lots of open-ended opportunities. It has an adjustable deck, tilting driver’s cab, and working vehicle locks. The car is extremely detailed and includes a V8 piston engine design for children to put together and explore. 

This toy truck and trailer building set can alternatively be built into a technic truck and multiple car models. It’s also compatible in scale with the LEGO Technic Chevrolet Corvette ZR1, so you can expand with that set and use the transporter to carry multiple cars! If your child loves cars, this is a great way to introduce them to STEM concepts. 

LEGO Technic Porsche 911 GT3 RS (2,704 Pieces)

This incredibly detailed Lego Porsche is best for older children who have developed attention spans. With over 2,700 pieces, this car takes quite a while to put together, but the results are very worth it! As you can imagine, this is also one of the pricier sets. 

However, the amount of detail on this car is unforgettable and makes the price tag very worth it. The driver’s seat is even detailed and it comes with a full-color, collectible book that includes a comprehensive history of this unique car. Children can even put together the engine, which has moving pistons!

LEGO Technic 6x6 All Terrain Tow Truck 42070 Building Kit (1862 Pieces)

LEGO Technic 6×6 All Terrain Tow Truck features 2 LEGO Power Functions motors, a battery box, receiver and remote, allowing children to  actually drive it around after they build it. Because it is an actual, drivable vehicle, this is one of the more complicated sets for children to make. We recommend it for older children or those with quite a bit of Lego experience. 

You can also rebuild this kit into a research explorer vehicle, which is even cooler than the tow truck. This kit is one of the best options available for older children who are ready to flex their STEM ‘muscles’.

LEGO Technic Police Pursuit 42091 Building Kit, 2019 (120 Pieces)

If you’re on the fence about whether or not to purchase your child a Lego Technic kit, you might as well get the LEGO Technic Police Pursuit 42091 Building Set. It’s simpler and therefore substantially less expensive than the others we’ve reviewed. It’s easier to put together as well, making it the best option for those with absolutely no LEGO or STEM experience. 

With that said, this vehicle does have a lot to teach children about STEM. It has a powerful pull-back motor, allowing children to pull the car back and then watch it speed off. These basic mechanics can go a long way to igniting a child’s passion for STEM. 

LEGO Technic Police Interceptor 42047 Building Kit

This is another LEGO technic building kit that is a little cheaper than most. The LEGO Technic Police Interceptor also comes with a pull-back motor and extra-wide rims. The tires are low-profile and it comes with police stickers children can use to add some detail to their model. On top of being cheaper, this model is also a little easier to put together, making it a good place to start for children with little to no experience.

LEGO Technic Racing Yacht 42074 Building Kit (330 Pieces)

The LEGO Technic series is replete with automotive vehicles. At the top, we highlighted an aerial vehicle. Now it’s time for a sefaring vessel! The LEGO Technic Racing Yacht  is a brightly colored and well designed replica of a real-life luxury racing yacht. It has working winches, a realistic hull and a rudder with connected wheel and tiller steering that works.

The set can also be built as a Catamaran and each model stands at over 10 inches tall. At 330 pieces, this is a quicker buold than many other sets we have featured here, and it’s also a resonably inexpensive entry into LEGO Technic.

LEGO Technic Liebherr R 9800 Excavator 42100 Building Kit, New 2019 (4,108 Pieces)

Finally, we have the grandaddy of LEGO Technic sets. This build is not for the faint of heart! The LEGO Technic Liebherr R 9800 Excavator  has over 4,100 pieces! In fact, at time of writing (Jan. 2020), this is the largest LEGO Technic set available. No wonder it’s recommended for ages 12 and up.

Not only is this a realistic scale model of a Liebherr R 9800 Excavator, but it also has 2 advanced Smart Hubs and 7 motors which allow it to be operated via a dedicated app on mobile devices. Standing at 15 inches high, 25 inches long and 10 inches wide, this monster engineering kit is big enough for your kid(s) to start dig a pool in your backyard! Control via the app is incredibly sophisticated, providing 4 control screens and even giving real-time feedback with data such asdrive distance and power usage. It doesn’t compete with LEGO Mindstorms – there is no ‘robot brain’ that allows programming of autonomous behaviour. Nevertheless, this LEGO Technic set is an engineering marvel in its own right that will provide hours upon hours of STEM fun and learning!

Given the chance, which of these LEGO Technic sets would you get?


It may be challenging to pick just one since they all offer so much fun and learning! The great thing is, LEGO has such high standards – there aren’t any bad Technic sets!

Currently, there are dozens of LEGO technic sets available. All are designed for children to use independently and teach some basic engineering skills. These sets do not require any STEM knowledge and very little parental help. While these sets are a little bit more challenging to put together than most LEGO sets, they create exceptional learning opportunities for children with little to no previous STEM experience. Plus, the approachability of LEGO, makes them an easy transition towards more sophisticated STEM toys.

Frequently Asked Questions

What is a LEGO Technic set?

LEGO Technic is a LEGO system that is charaterised by more sophisticated components that can mimic mechanical aspects of modern machines. LEGO Technic sets include special pieces, such as gears, cogs, axles, winches and the like.

How old is LEGO Technic?

LEGO Technic was originally introduced as the Expert Builder Series in 1977 and was renamed “Technic” in 1984.

Does LEGO Technic work with normal LEGO?

Yes, generally. LEGO Technic sets include many ‘standard’ LEGO pieces, and are therefore compatible with other, normal, LEGO blocks. The LEGO Technic pieces are designed to interface with each other, eg. a gear with another gear, a cog mounted on an axle, and to interact with regulat LEGO blocks.

What is the biggest Lego Technic set in the world?

Presently (Jan. 2020), the largest LEGO Technic set is the Liebherr R 9800 Excavator 42100 Building Kit, with 4,108 pieces.

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