LEGO 9V Motor Set 8720-1
LEGO 9V Motor Set (8720-1) is estimated at about $90 sealed as of Sep 2026 (retail $36). Retired · 57 pieces · 1990 Technic. Track its value and price history.
- Set number
- 8720-1
- Theme
- Technic
- Subtheme
- Supplementary
- Year
- 1990
- Pieces
- 57
- Minifigures
- 0
- RRP
- $36
- Market value
- $90 (Estimate, Sep 2026)
- Used value
- $36
- Released
- 1990
- Retirement
- Retired
9V Motor Set value by year
From $36 in 2016 to $90 (Estimate, Sep 2026): +147%. Its highest year was 2023, at $79.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $90 | +31.8% |
| 2026 (so far) | $75 | +9.9% |
| 2025 | $68 | −8.7% |
| 2024 | $75 | −5.5% |
| 2023 | $79 | +3.4% |
| 2022 | $77 | +16.6% |
| 2021 | $66 | +22.0% |
| 2020 | $54 | +36.4% |
| 2019 | $39 | +0.4% |
| 2018 | $39 | +1.6% |
| 2017 | $39 | +6.1% |
| 2016 | $36 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO 9V Motor Set (8720-1) worth?
LEGO 9V Motor Set is worth approximately $90 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO 9V Motor Set retired?
Yes — 9V Motor Set (8720-1) 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 9V Motor Set gone up in value?
Yes. 9V Motor Set launched at $36 and now trades around $90, an increase of 150.0%. See the price history chart for how it got there.
What is the price per piece for 9V Motor Set?
At its $36 retail price across 57 pieces, 9V Motor Set works out to about $0.632 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO 9V Motor Set a good investment?
9V Motor Set currently trades 150.0% above its $36 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 9V Motor Set so expensive?
9V Motor Set was released in 1990 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.