Most Valuable LEGO Technic Sets
The Technic LEGO sets worth the most on the secondary market, ranked by real eBay sold prices. The Cat D11 Bulldozer leads at a sealed median of $818. Each links to its full Sealed / Used / Incomplete breakdown.
Most valuable Technic sets by sold price
| # | Set | Year | Sold median | RRP | vs RRP |
|---|---|---|---|---|---|
| 1 |  Cat D11 Bulldozer #42131 | 2021 | $818 | $500 | +64% |
| 2 |  Liebherr Crawler Crane LR 13000 #42146 | 2023 | $750 | $700 | +7% |
| 3 |  Liebherr R 9800 Excavator #42100 | 2019 | $660 | $450 | +47% |
| 4 |  Porsche 911 GT3 RS #42056 | 2016 | $633 | $300 | +111% |
| 5 |  Bucket Wheel Excavator #42055 | 2016 | $613 | $280 | +119% |
| 6 |  Mobile Crane MK II #42009 | 2013 | $575 | $220 | +162% |
| 7 |  Rough Terrain Crane #42082 | 2018 | $477 | $300 | +59% |
| 8 |  Bugatti Chiron #42083 | 2018 | $462 | $350 | +32% |
| 9 |  Ferrari Daytona SP3 #42143 | 2022 | $450 | $450 | +0% |
| 10 |  Lamborghini Sián FKP 37 #42115 | 2020 | $447 | $450 | +-1% |
| 11 |  McLaren P1 #42172 | 2024 | $409 | $450 | +-9% |
| 12 |  Mercedes-Benz Arocs 3245 #42043 | 2015 | $400 | $230 | +74% |
| 13 |  Mack Anthem #42078 | 2018 | $366 | $180 | +103% |
| 14 |  Extreme Adventure #42069 | 2017 | $276 | $180 | +53% |
| 15 |  Land Rover Defender #42110 | 2019 | $270 | $200 | +35% |
| 16 |  Mercedes-Benz G 500 PROFESSIONAL Line #42177 | 2024 | $220 | $250 | +-12% |
| 17 |  Car Transporter #42098 | 2019 | $172 | $180 | +-5% |
RRP = recommended retail price, the set’s original launch price (US MSRP). “vs RRP” is how much the current sold price has gained over it. A few older sets show “—” because LEGO didn’t publish a retail price we can source for them (typically pre-2007) — their value is still ranked by real sold price.
Why Technic sets hold their value
Technic is one of the most collected LEGO themes, and 14 of the 17 we track here are already retired — once production stops, the fixed supply meets steady demand and prices climb. Licensed and large display sets in the theme appreciate most, especially sealed. Every figure here is the median of real eBay completed sales, so it reflects what the theme’s sets actually trade for, not asking prices.
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How to value your set
Use the lookup tool for your exact Technic set — it returns the Sealed / Used / Incomplete medians, the seller’s net after eBay fees, and the recent real sales behind the number. For the biggest gainers across all themes, see rare LEGO sets; for the overall leaderboard, the most valuable LEGO sets.