Conforming and of good quality
Complies with the description. Expected quality met.
-30% · today
DUPLO
Set 10425
LEGO Train Tunnel and Tracks Expansion Set 10425
Lowest price now
€ 13,99
You save vs. RRP
−€ 6.00
−30%
Good time to buy € 4.03 below the average price.
View at Bol.com for €17.33Price details
Lowest ever
€ 13.71
RRP
€ 19.99
Average price
€ 18.02
Price per piece
€ 0.70
Release date
1 Jan 2025
1 / 9
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Compare 4 retailers.
Retailer prices for 10425 are sorted by the lowest delivered price when shipping is known.
Retailer pricesPrices tracked across 9 retailers, updated twice a day.
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Full price history at a glance.
Lowest yet
€13.71
11 Sep 2026 · Amazon.nl
Peak price
€19.99
14 Dec 2025 · Dreamland
Average
€18.02
10% below RRP
RRP
€19.99
reference price
Daily lowest price tracked across 7 retailers in Belgium. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 7 retailers in Belgium, 14 Dec 2025 – 25 Sep 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €13.99 | Amazon.nl | In stock | |
| €19.99 | LEGO.com | In stock | |
| €17.33 | Bol.com | In stock | |
| €19.99 | FNAC | In stock | |
| €19.99 | LEGO.com | In stock | |
| €13.99 | Bol.com | In stock | |
| €19.99 | FNAC | In stock | |
| €19.99 | LEGO.com | In stock | |
| €13.99 | Bol.com | In stock | |
| €19.99 | FNAC | In stock | |
| €13.99 | Amazon.nl | In stock | |
| €19.99 | LEGO.com | In stock |
Price expectation
Price will likely hold steady.
28%
Low · ±6%
Low likelihood of further drops. Current price is near the all-time low.
Estimated price · next 3 months
| Date | Price | Type |
|---|---|---|
| 2026-06-27 | €16.99 | History |
| 2026-06-28 | €13.99 | History |
| 2026-06-29 | €16.99 | History |
| 2026-06-30 | €13.99 | History |
| 2026-07-01 | €16.99 | History |
| 2026-07-02 | €16.99 | History |
| 2026-07-03 | €16.99 | History |
| 2026-07-04 | €13.99 | History |
| 2026-07-05 | €16.99 | History |
| 2026-07-06 | €13.99 | History |
| 2026-07-07 | €13.99 | History |
| 2026-07-08 | €13.99 | History |
| 2026-07-09 | €13.99 | History |
| 2026-07-10 | €16.99 | History |
| 2026-07-11 | €16.99 | History |
| 2026-07-12 | €13.99 | History |
| 2026-07-13 | €16.99 | History |
| 2026-07-14 | €16.99 | History |
| 2026-07-15 | €13.99 | History |
| 2026-07-16 | €16.99 | History |
| 2026-07-17 | €16.99 | History |
| 2026-07-18 | €16.99 | History |
| 2026-07-19 | €16.99 | History |
| 2026-07-20 | €16.99 | History |
| 2026-07-21 | €16.99 | History |
| 2026-07-22 | €16.99 | History |
| 2026-07-23 | €16.99 | History |
| 2026-07-24 | €16.99 | History |
| 2026-07-25 | €16.99 | History |
| 2026-07-26 | €16.99 | History |
| 2026-07-27 | €16.99 | History |
| 2026-07-28 | €13.99 | History |
| 2026-07-29 | €16.99 | History |
| 2026-07-30 | €16.99 | History |
| 2026-07-31 | €16.99 | History |
| 2026-08-01 | €16.99 | History |
| 2026-08-02 | €16.99 | History |
| 2026-08-03 | €16.99 | History |
| 2026-08-04 | €16.99 | History |
| 2026-08-05 | €16.99 | History |
| 2026-08-06 | €16.99 | History |
| 2026-08-07 | €16.99 | History |
| 2026-08-08 | €16.99 | History |
| 2026-08-09 | €16.99 | History |
| 2026-08-10 | €16.99 | History |
| 2026-08-11 | €16.99 | History |
| 2026-08-12 | €16.99 | History |
| 2026-08-13 | €16.99 | History |
| 2026-08-14 | €16.99 | History |
| 2026-08-15 | €16.99 | History |
| 2026-08-16 | €16.99 | History |
| 2026-08-17 | €16.99 | History |
| 2026-08-18 | €16.99 | History |
| 2026-08-19 | €16.99 | History |
| 2026-08-20 | €16.99 | History |
| 2026-08-21 | €13.99 | History |
| 2026-08-22 | €16.99 | History |
| 2026-08-23 | €13.99 | History |
| 2026-08-24 | €13.99 | History |
| 2026-08-25 | €14.99 | History |
| 2026-08-26 | €14.99 | History |
| 2026-08-27 | €14.99 | History |
| 2026-08-28 | €13.99 | History |
| 2026-08-29 | €14.99 | History |
| 2026-08-30 | €14.99 | History |
| 2026-08-31 | €14.99 | History |
| 2026-09-01 | €14.99 | History |
| 2026-09-02 | €14.99 | History |
| 2026-09-03 | €14.99 | History |
| 2026-09-04 | €14.99 | History |
| 2026-09-05 | €14.99 | History |
| 2026-09-06 | €14.99 | History |
| 2026-09-07 | €14.99 | History |
| 2026-09-08 | €14.99 | History |
| 2026-09-09 | €14.99 | History |
| 2026-09-10 | €14.99 | History |
| 2026-09-11 | €13.71 | History |
| 2026-09-12 | €14.99 | History |
| 2026-09-13 | €14.99 | History |
| 2026-09-14 | €14.99 | History |
| 2026-09-15 | €14.99 | History |
| 2026-09-16 | €13.99 | History |
| 2026-09-17 | €14.99 | History |
| 2026-09-18 | €13.99 | History |
| 2026-09-19 | €14.99 | History |
| 2026-09-20 | €14.99 | History |
| 2026-09-21 | €13.99 | History |
| 2026-09-22 | €19.14 | History |
| 2026-09-23 | €13.99 | History |
| 2026-09-24 | €13.99 | History |
| 2026-09-25 | €13.99 | History |
| 2026-10-25 | €14.08 | Forecast |
| 2026-11-24 | €14.18 | Forecast |
| 2026-12-24 | €14.27 | Forecast |
€19.99
RRP
€13.71
Lowest · 90 days
€19.99
Highest · 90 days
Stable
Trend
About this set
For LEGO Train Tunnel and Tracks Expansion Set (10425), we track 4 retailers in Belgium, with 4 currently in stock. This set from the DUPLO theme has 20 pieces and was released in 2025. The current lowest price is €13.99 at Amazon.nl, 30% below the RRP of €19.99. That works out to €0.70 per piece and a saving of €6.00 versus the RRP. The lowest price ever was €13.71 on 11 Sep 2026 at Amazon.nl. The set is recommended for builders aged 2 and up. The current price is above that low, so waiting for a drop may pay off. Use price history and stock data to judge whether this is a good time to buy.
Dimensions
26.2 × 28.2 × 11.8 cm
Weight
700 g
Pieces
20
Age
2+
Explore more
Dive deeper into this set.
All about this set
Extend toddlers’ train adventures with the Train Tunnel and Tracks Expansion Set (10425) toy for toddlers. Preschool kids aged 2+ grow their learning adventures as they add a tunnel and extra track to their LEGO® DUPLO® Town interactive toy train sets (10427 and 10428, sold separately). This creative building toy comes with a tunnel build and a 10-piece track, including a funnel element and a 2-way points switch so toddlers can change their train’s direction of travel. The action brick lights up the dark tunnel when activated by the interactive train from sets 10427 and 10428. This kids’ learning toy encourages a toddler’s development. By extending the train track through the toy tunnel, preschoolers learn spatial awareness. Using problem-solving skills to combine the toy track and prediction skills to determine the train’s destination, toddlers develop patience and focus as they discover the many routes they can make.
You can't go wrong with Duplo. This set has such a fun design with cute little characters, and my toddler has already come up with some hilarious combinations. The colors are bright, the quality is great as always, and it is really easy to build, even for small hands. It has a decent amount of pieces for the size, so there is plenty of play value, and it mixes well with our other sets. Good value for money and easy to store too. You can't go wrong with Duplo. This set has such a fun design with cute little characters, and my toddler has already come up with some hilarious combinations. The colors are bright, the quality is great as always, and it is really easy to build, even for small hands. It has a decent amount of pieces for the size, so...
Reference
Set details
Set number
10425
Theme
DUPLO
Subtheme
Trains
Year
2025
Pieces
20
Price per piece
€0.70
Age
2+
Dimensions
26.2 × 28.2 × 11.8 cm
Weight
700 g
RRP
€19.99
Parts inventory
20
pieces
Distinctive parts
-
Duplo Train Action Plate with Lamp Print, Light Action Part ID 35962pr0006
-
Duplo Brick 1 x 3 x 2 Triangle with Train, Orange Border print Part ID 42025pr0005
-
Duplo Arch 4 x 10 x 7 Part ID 5557
Building instructions
Train Tunnel and Tracks Expansion Set instruction manual
Train Tunnel and Tracks Expansion Set instruction manual (CS)
Train Tunnel and Tracks Expansion Set instruction manual (DE)
Train Tunnel and Tracks Expansion Set instruction manual (ES)
Train Tunnel and Tracks Expansion Set instruction manual (ET)
Train Tunnel and Tracks Expansion Set instruction manual (FR)
Train Tunnel and Tracks Expansion Set instruction manual (HU)
Train Tunnel and Tracks Expansion Set instruction manual (IT)
Train Tunnel and Tracks Expansion Set instruction manual (LT)
Train Tunnel and Tracks Expansion Set instruction manual (LV)
Train Tunnel and Tracks Expansion Set instruction manual (PL)
Train Tunnel and Tracks Expansion Set instruction manual (PT)
Train Tunnel and Tracks Expansion Set instruction manual (RO)
Train Tunnel and Tracks Expansion Set instruction manual (SK)
Related sets DUPLO.
Other sets from the same theme for price comparison.
Frequently asked questions
All about the Train Tunnel and Tracks Expansion Set.
What is the lowest price for Train Tunnel and Tracks Expansion Set?
The lowest current price we show is €13.99.
Has LEGO 10425 ever been cheaper?
The lowest historical price was €13.71 on 11 Sep 2026 at Amazon.nl.
How many pieces does LEGO 10425 have?
This set has 20 pieces.
What year is this set from?
LEGO 10425 was released in 2025.
What is the RRP for LEGO 10425?
LEGO's recommended retail price is €19.99.
What is the recommended age for LEGO 10425?
LEGO recommends ages 2+ for this set.
Is LEGO 10425 still available?
Yes, this set is currently available at 4 retailers.
Which retailers do you compare?
We currently compare 4 retailer prices for this set.
How often do you update prices?
We check prices multiple times per day at every tracked retailer and publish the most recent value on this page.