LEGO Insulating Track Plus Socket 12V (Isolating Rail) 5085-1
LEGO Insulating Track Plus Socket 12V (Isolating Rail) (5085-1) is estimated at about $12 sealed as of Sep 2026. Retired · 1 pieces · 1989 Service Packs.
- Set number
- 5085-1
- Theme
- Service Packs
- Subtheme
- Trains
- Year
- 1989
- Pieces
- 1
- Minifigures
- 0
- Market value
- $12 (Estimate, Sep 2026)
- Retirement
- Retired
Insulating Track Plus Socket 12V (Isolating Rail) value by year
From $14 in 2011 to $12 (Estimate, Sep 2026): −11%. Its highest year was 2018, at $17.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $12 | +11.6% |
| 2026 (so far) | $14 | +30.0% |
| 2025 | $11 | +2.3% |
| 2024 | $11 | −22.9% |
| 2023 | $14 | +2.1% |
| 2022 | $14 | −5.4% |
| 2021 | $14 | +10.8% |
| 2020 | $13 | +2.2% |
| 2019 | $13 | −26.4% |
| 2018 | $17 | +2.5% |
| 2017 | $17 | +3.1% |
| 2016 | $16 | +2.9% |
| 2015 | $16 | +2.7% |
| 2014 | $15 | +3.8% |
| 2013 | $15 | +3.9% |
| 2012 | $14 | +4.2% |
| 2011 | $14 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Insulating Track Plus Socket 12V (Isolating Rail) (5085-1) worth?
LEGO Insulating Track Plus Socket 12V (Isolating Rail) is worth approximately $12 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Insulating Track Plus Socket 12V (Isolating Rail) retired?
Yes — Insulating Track Plus Socket 12V (Isolating Rail) (5085-1) 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.
Why is LEGO Insulating Track Plus Socket 12V (Isolating Rail) so expensive?
Insulating Track Plus Socket 12V (Isolating Rail) was released in 1989 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.