Train Tunnel and Tracks Expansion Set
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Catalog price: £17.99
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£11.35
Lowest price
Current
BEST PRICE£12.69
Avg price (30d)
-11%
£11.35
Historical lowest
8 Sept 2026
BEST PRICE£17.99
Catalog price
3
Offers
2025
Year released
Prices at UK retailers
We currently track 3 stores selling this set, and check prices regularly.
What Makes this set WOW?
Action Brick: A special white element activates the headlights of interactive locomotives, which allows for spectacular lighting of the road inside the tunnel and teaches the principles of causality.
Two-way switch: Allows you to dynamically change the route without interrupting the fun, which introduces children to the world of logistical planning and the basics of engineering.
Stable tunnel structure: A 20 cm high element with architectural details allows trains to pass freely, adding realism to the structure and developing the child's spatial orientation.
Extensive track geometry: The set includes 10 additional track elements (8 curves and 2 straights), which allows you to complete a full circle or create complex loops in the room.
Set details
LEGO Train Tunnel and Tracks Expansion Set (set #10425) is a DUPLO set released in 2025, made up of 20 pieces.
- Set number
- #10425
- Theme
- DUPLO
- Sub-theme
- Trains
- Year released
- 2025
- Pieces
- 20
Price history
Lowest recorded price: £11.35 on 8 Sep 2026
Common questions about Train Tunnel and Tracks Expansion Set
What is LEGO Train Tunnel and Tracks Expansion Set?▾
LEGO Train Tunnel and Tracks Expansion Set (set #10425) is a set from the DUPLO (Trains) range, released in 2025, made up of 20 pieces.
How much does LEGO Train Tunnel and Tracks Expansion Set cost?▾
The current lowest price we've found is £11.35 at Joybuy UK, compared to a catalogue price of £17.99. We check prices across 3 UK retailers for this set.
What's the lowest price LEGO Train Tunnel and Tracks Expansion Set has been?▾
The lowest price we've recorded for this set is £11.35 on 8 September 2026. The current price matches this all-time low, making now a good time to buy.
Is LEGO Train Tunnel and Tracks Expansion Set being retired?▾
We don't currently see signs that this set is retiring imminently, but LEGO doesn't publish official retirement dates in advance, so availability can still change.
Where can I buy LEGO Train Tunnel and Tracks Expansion Set cheapest in the UK?▾
Right now, Joybuy UK has the lowest price we've tracked at £11.35. We compare prices across UK retailers and update them regularly, so check back for the latest.
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