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Compare 7 retailers.

Retailer prices for 10425 are sorted by the lowest delivered price when shipping is known.

Retailer prices

Prices tracked across 10 retailers, updated twice a day.

Featured
LEGO Official Store Buy safely from the Official LEGO Store · lego.com In stock - € 5.95 shipping 25 Sep - € 25.94 not the lowest € 5.95 shipping 1 JJ Joybuy Best deal joybuy.de In stock 2-3 days € 3.99 shipping 25 Sep −35% € 16.98 € 3.99 shipping 2 BB babymarkt babymarkt.de In stock 4-7 days € 1.99 shipping 25 Sep −20% € 17.98 € 1.99 shipping 3 BB Babywalz baby-walz.de In stock 4-7 days € 1.99 shipping 25 Sep −15% € 18.98 € 1.99 shipping 4 Conrad conrad.de In stock 2-3 days € 4.95 shipping 25 Sep −25% € 19.94 € 4.95 shipping 5 OO Otto otto.de In stock 2-3 days € 4.95 shipping 25 Sep −24% € 20.21 € 4.95 shipping 6 II idee+spiel ideeundspiel.com In stock 2-3 days € 5.90 shipping 25 Sep −10% € 23.85 € 5.90 shipping 7 LEGO.com lego.com In stock - € 5.95 shipping 25 Sep - € 25.94 € 5.95 shipping

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Full price history at a glance.

Lowest yet
€11.99
7 Sep 2026 · Joybuy
Peak price
€19.99
11 Apr 2026 · LEGO.com
Average
€16.53
17% below RRP
RRP
€19.99
reference price

Daily lowest price tracked across 8 retailers in Germany. The dotted line marks LEGO's recommended retail price.

Source: daily measurement at 8 retailers in Germany, 11 Apr 2026 – 25 Sep 2026. RRP via LEGO.com.

Last 12 price points for LEGO 10425 Train Tunnel and Tracks Expansion Set
Date Price Retailer Stock
€19.99 LEGO.com In stock
€14.99 Conrad In stock
€12.99 Joybuy In stock
€17.95 idee+spiel In stock
€15.99 babymarkt In stock
€16.99 Babywalz In stock
€12.98 Otto In stock
€15.99 babymarkt In stock
€16.99 Babywalz In stock
€19.99 LEGO.com In stock
€12.98 Otto In stock
€14.99 Conrad 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

now · €12.99 expected · €13.25
Price expectation Train Tunnel and Tracks Expansion Set
Date Price Type
2026-06-27 €13.76 History
2026-06-28 €13.76 History
2026-06-29 €12.99 History
2026-06-30 €12.99 History
2026-07-01 €12.99 History
2026-07-02 €12.99 History
2026-07-03 €12.99 History
2026-07-04 €12.99 History
2026-07-05 €12.99 History
2026-07-06 €12.99 History
2026-07-07 €12.99 History
2026-07-08 €12.99 History
2026-07-09 €12.99 History
2026-07-10 €12.99 History
2026-07-11 €12.99 History
2026-07-12 €12.99 History
2026-07-13 €12.99 History
2026-07-14 €12.99 History
2026-07-15 €12.99 History
2026-07-16 €12.99 History
2026-07-17 €12.99 History
2026-07-18 €12.99 History
2026-07-19 €12.99 History
2026-07-20 €12.99 History
2026-07-21 €12.99 History
2026-07-22 €12.99 History
2026-07-23 €12.99 History
2026-07-24 €12.99 History
2026-07-25 €12.99 History
2026-07-26 €12.99 History
2026-07-27 €12.99 History
2026-07-28 €12.99 History
2026-07-29 €12.99 History
2026-07-30 €12.99 History
2026-07-31 €12.99 History
2026-08-01 €12.99 History
2026-08-02 €12.99 History
2026-08-03 €12.99 History
2026-08-04 €12.99 History
2026-08-05 €12.99 History
2026-08-06 €12.99 History
2026-08-07 €12.99 History
2026-08-08 €12.99 History
2026-08-09 €12.99 History
2026-08-10 €12.98 History
2026-08-11 €12.98 History
2026-08-12 €12.98 History
2026-08-13 €12.98 History
2026-08-14 €12.98 History
2026-08-15 €12.98 History
2026-08-16 €12.98 History
2026-08-17 €12.99 History
2026-08-18 €12.99 History
2026-08-19 €12.99 History
2026-08-20 €12.99 History
2026-08-21 €12.99 History
2026-08-22 €12.99 History
2026-08-23 €12.99 History
2026-08-24 €12.99 History
2026-08-25 €12.99 History
2026-08-26 €12.99 History
2026-08-27 €12.99 History
2026-08-28 €12.99 History
2026-08-29 €12.99 History
2026-08-30 €12.99 History
2026-08-31 €12.99 History
2026-09-01 €12.99 History
2026-09-02 €12.99 History
2026-09-03 €12.99 History
2026-09-04 €12.99 History
2026-09-05 €12.99 History
2026-09-06 €12.99 History
2026-09-07 €11.99 History
2026-09-08 €11.99 History
2026-09-09 €11.99 History
2026-09-10 €12.49 History
2026-09-11 €12.49 History
2026-09-12 €12.49 History
2026-09-13 €11.99 History
2026-09-14 €11.99 History
2026-09-15 €12.49 History
2026-09-16 €12.49 History
2026-09-17 €12.49 History
2026-09-18 €12.49 History
2026-09-19 €12.49 History
2026-09-20 €12.49 History
2026-09-21 €12.49 History
2026-09-22 €12.49 History
2026-09-23 €12.99 History
2026-09-24 €12.98 History
2026-09-25 €12.99 History
2026-10-25 €13.08 Forecast
2026-11-24 €13.16 Forecast
2026-12-24 €13.25 Forecast
€19.99 RRP
€11.99 Lowest · 90 days
€19.99 Highest · 90 days
Stable Trend

About this set

For LEGO Train Tunnel and Tracks Expansion Set (10425), we track 7 retailers in Germany, with 7 currently in stock. This set from the DUPLO theme has 20 pieces and was released in 2025. The current lowest price is €12.99 at Joybuy, 35% below the RRP of €19.99. That works out to €0.65 per piece and a saving of €7.00 versus the RRP. The lowest price ever was €11.99 on 7 Sep 2026 at Joybuy. 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.
Liv Stone · Amazon.nl
Media

View the set from every angle.

9 images
LEGO Train Tunnel and Tracks Expansion Set (10425) Front view LEGO Train Tunnel and Tracks Expansion Set (10425) - image 1 Image 2 LEGO Train Tunnel and Tracks Expansion Set (10425) - image 2 Image 3 LEGO Train Tunnel and Tracks Expansion Set (10425) - image 3 Image 4 LEGO Train Tunnel and Tracks Expansion Set (10425) - image 4 Image 5 LEGO Train Tunnel and Tracks Expansion Set (10425) - image 5 Image 6
Reference

Set details

Set number 10425
Theme DUPLO
Subtheme Trains
Year 2025
Pieces 20
Price per piece €0.65
Age 2+
Dimensions 26.2 × 28.2 × 11.8 cm
Weight 700 g
RRP €19.99
Parts

Parts inventory

20
pieces
11 unique parts across 7 colors
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)
More guides
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 €12.99.

Has LEGO 10425 ever been cheaper?
The lowest historical price was €11.99 on 7 Sep 2026 at Joybuy.

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 7 retailers.

Which retailers do you compare?
We currently compare 7 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.