The biggest LEGO® Technic set you can buy right now is the Koenigsegg Sadair's Spear Megacar #42232 at 4,104 pieces, $449.99 at retail, 4 pieces short of the all-time Technic record.
Technic is the line where piece count undersells the box. A 4,000-piece Technic supercar has a working gearbox and suspension inside it, built from beams, pins and panels that are each far larger than a System brick. Our catalog has 443 real Technic sets, 51 of them on sale today. This page ranks the current ones by official piece count, then the all-time list, then the heaviest Technic sets ever weighed, which is a different list again.
The 10 biggest Technic sets on sale today
The 20 biggest Technic sets of all time
The all-time list mixes supercars with construction machinery. The record holder is the Liebherr R 9800 #42100 at 4,108 pieces, released in 2019 and now retired. Status badges show which rows you can still buy at retail.
| Rank | Set | Pieces | Year | US MSRP | Status |
|---|---|---|---|---|---|
| #1 |  Liebherr R 9800 #42100 | 4,108 | 2019 | $449.99 | Retired |
| #2 | Koenigsegg Sadair's Spear Megacar #42232 | 4,104 | 2026 | $449.99 | Safe For Now |
| #3 |  Rough Terrain Crane #42082 | 4,057 | 2018 | $299.99 | Retired |
| #4 |  Bucket Wheel Excavator #42055 | 3,929 | 2016 | $279.99 | Retired |
| #5 | McLaren P1 #42172 | 3,893 | 2024 | $449.99 | Safe For Now |
| #6 |  Cat D11 Bulldozer #42131 | 3,854 | 2021 | $499.99 | Retired |
| #7 |  Ferrari Daytona SP3 #42143 | 3,778 | 2022 | $449.99 | Retired |
| #8 |  Lamborghini Sián FKP 37 #42115 | 3,696 | 2020 | $449.99 | Retired |
| #9 |  Bugatti Chiron #42083 | 3,599 | 2018 | $349.99 | Retired |
| #10 | Mercedes-Benz G 500 PROFESSIONAL Line #42177 | 2,891 | 2024 | $249.99 | Last Call |
| #11 |  Liebherr Crawler Crane LR 13000 #42146 | 2,883 | 2023 | $699.99 | Retired |
| #12 |  Mercedes-Benz Arocs 3245 #42043 | 2,793 | 2015 | $229.99 | Retired |
| #13 |  Porsche 911 GT3 RS #42056 | 2,704 | 2016 | $299.99 | Retired |
| #14 |  Mobile Crane MK II #42009 | 2,606 | 2013 | $219.99 | Retired |
| #15 |  Mack Anthem #42078 | 2,595 | 2018 | $179.99 | Retired |
| #16 |  Land Rover Defender #42110 | 2,573 | 2019 | $199.99 | Retired |
| #17 |  Car Transporter #42098 | 2,493 | 2019 | $179.99 | Retired |
| #18 |  Extreme Adventure #42069 | 2,382 | 2017 | $179.99 | Retired |
| #19 | Volvo EC500 Hybrid Excavator #42215 | 2,359 | 2025 | $429.99 | On Notice |
| #20 | Volvo FMX Truck & EC230 Electric Excavator #42175 | 2,274 | 2024 | $199.99 | Last Call |
The 10 heaviest Technic sets ever weighed
Piece count and weight part ways in Technic more than in any other theme. Large panels, rubber tyres, wheel hubs, motors and battery boxes each count as one piece and weigh many times what a stud does, so a set with fewer pieces can outweigh one with far more. The weights below are boxed shipping weights as recorded by Brickset, the same measure our all-theme heaviest ranking uses. Weight is recorded for 140 of the 443 Technic sets in our catalog, so this list covers weighed sets only.
| Rank | Set | Weight (kg) | Pieces | Year | US MSRP | Status |
|---|---|---|---|---|---|---|
| #1 | Lamborghini Sián FKP 37 #42115 | 7.18 | 3,696 | 2020 | $449.99 | Retired |
| #2 | Rough Terrain Crane #42082 | 6.10 | 4,057 | 2018 | $299.99 | Retired |
| #3 | Bugatti Chiron #42083 | 5.92 | 3,599 | 2018 | $349.99 | Retired |
| #4 | Mercedes-Benz Arocs 3245 #42043 | 4.49 | 2,793 | 2015 | $229.99 | Retired |
| #5 | Mobile Crane MK II #42009 | 4.21 | 2,606 | 2013 | $219.99 | Retired |
| #6 |  6x6 Volvo Articulated Hauler #42114 | 3.62 | 2,193 | 2020 | $249.99 | Retired |
| #7 |  Volvo L350F Wheel Loader #42030 | 3.59 | 1,636 | 2014 | $249.99 | Retired |
| #8 |  Mobile Crane #8421 | 3.56 | 1,884 | 2005 | — | Retired |
| #9 | Mack Anthem #42078 | 3.46 | 2,595 | 2018 | $179.99 | Retired |
| #10 |  Tow Truck #8285 | 3.43 | 1,877 | 2006 | $119.99 | Retired |
Frequently Asked Questions
What is the biggest LEGO® Technic set currently available?
The Koenigsegg Sadair's Spear Megacar #42232 at 4,104 pieces. This ranking refreshes nightly, so the answer updates when a bigger set launches or this one retires.
What is the biggest LEGO® Technic set of all time?
The Liebherr R 9800 #42100 at 4,108 pieces, released in 2019. It is retired, so buying one now means the secondary market.
What is the heaviest LEGO® Technic set ever made?
Among sets with a recorded weight, the Lamborghini Sián FKP 37 #42115 at 7.18 kg (15.8 lb) boxed. Weight is only recorded for part of the catalog, so a heavier unweighed set could exist.
Do Technic sets retire faster than other themes?
Among fully retired sets in our data with both a launch and an exit date, Technic sets stayed on sale for a median of about 24 months, against a median of about 19 months across all themes. So no, the typical Technic set lasts slightly longer. Individual sets vary widely; the retirement tracker has the current expected exit for every Technic set on sale.
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Data updated: October 8, 2026