LEGO K-9 Bot 8399-1
LEGO K-9 Bot (8399-1) is worth about $30 sealed (retail $3). Retired 2009 · 22 pieces · 2009 Space. Track its value and price history.
- Set number
- 8399-1
- Theme
- Space
- Subtheme
- Space Police 3
- Year
- 2009
- Pieces
- 22
- Minifigures
- 1
- RRP
- $3
- Market value
- $30
- Used value
- $8
- Released
- 2009
- Retirement
- Retired in 2009
Minifigures in LEGO K-9 Bot
K-9 Bot value by year
From $13 in 2016 to $30 today: +138%. Its highest year was 2025, at $19.
| Year | Value | Change |
|---|---|---|
| Today | $30 | +58.6% |
| 2026 (so far) | $18 | −4.4% |
| 2025 | $19 | +21.1% |
| 2024 | $16 | +0.3% |
| 2023 | $16 | +17.5% |
| 2022 | $13 | −14.0% |
| 2021 | $15 | −2.3% |
| 2020 | $16 | −1.0% |
| 2019 | $16 | −3.1% |
| 2018 | $16 | +41.1% |
| 2017 | $12 | −7.5% |
| 2016 | $13 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 1 priced minifigure is worth about $3 together, roughly 11% of the set's value — about typical for Space sets (typically 11%).
Frequently asked questions
How much is LEGO K-9 Bot (8399-1) worth?
LEGO K-9 Bot is worth approximately $30 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO K-9 Bot retired?
Yes — K-9 Bot (8399-1) 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 K-9 Bot gone up in value?
Yes. K-9 Bot launched at $3 and now trades around $30, an increase of 759.6%. See the price history chart for how it got there.
What is the price per piece for K-9 Bot?
At its $3 retail price across 22 pieces, K-9 Bot works out to about $0.159 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO K-9 Bot a good investment?
K-9 Bot currently trades 759.6% above its $3 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 K-9 Bot so expensive?
K-9 Bot was released in 2009 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.