LEGO Mobile Crane 8421-1
LEGO Mobile Crane (8421-1) is worth about $689 on the secondary market today, against a $237 retail price. It has 1,884 pieces, belongs to the Technic theme and was released in 2005. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
- Set number
- 8421-1
- Theme
- Technic
- Year
- 2005
- Pieces
- 1,884
- Minifigures
- 0
- RRP
- $237
- Market value
- $689
- Used value
- $163
- Released
- 2005
- Retirement
- Retired in 2007
Mobile Crane value by year
From $405 in 2016 to $469 in 2026 so far: +16%. Its highest year was 2020, at $543.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $469 | +10.2% |
| 2025 | $425 | −12.8% |
| 2024 | $488 | −5.9% |
| 2023 | $519 | +6.3% |
| 2022 | $488 | −8.3% |
| 2021 | $532 | −1.9% |
| 2020 | $543 | +6.6% |
| 2019 | $509 | +10.2% |
| 2018 | $462 | −10.3% |
| 2017 | $515 | +27.2% |
| 2016 | $405 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Mobile Crane (8421-1) worth?
LEGO Mobile Crane is worth approximately $689 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Mobile Crane retired?
Yes — Mobile Crane (8421-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Mobile Crane gone up in value?
Yes. Mobile Crane launched at $237 and now trades around $689, an increase of 190.7%. See the price history chart for how it got there.
What is the price per piece for Mobile Crane?
At its $237 retail price across 1,884 pieces, Mobile Crane works out to about $0.126 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Mobile Crane a good investment?
Mobile Crane currently trades 190.7% above its $237 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Mobile Crane so expensive?
Mobile Crane was released in 2005 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.