LegoLEGO® DUPLO®

Lego® Train Tunnel and Tracks Expansion Set

Name: Train Tunnel and Tracks Expansion Set 10425 | LEGO® DUPLO®
Brand: Lego
SKU: 10425
Availability: InStock

Lowest price right now CHF 11.39 at alternate.de, 50% below RRP, 3 shops compared. Prices as of 12.11.2026, 13:35.

NewBest price27,39 CHFLowest price in 90 days@ Alternate DEincl. 16,00 CHF shipping UsedFind great used offers on eBay.

Alle 3 Angebote vergleichen →

Lego Train Tunnel and Tracks Expansion Set (10425) – Produktfoto freigestellt

Set #: 10425
Parts: 20
Price/part: 57 ct
Release: 2025
Age: 2+

Price comparison · 3 Offers · final prices incl. shipping

Where is Train Tunnel and Tracks Expansion Set cheapest right now?

Shipping to Switzerland

3 shops checkedIndependently sorted

New

27,39CHFBEST PRICE

incl. 16,00 CHF shippingincl. VAT & customsfrom | 4 to 11 days

27,39 CHFNewincl. 16,00 CHF shipping · 4 to 11 days

New
31,40CHF
incl. 8,50 CHF shippingincl. VAT & customsfrom | 3 to 4 days
31,40 CHFNewincl. 8,50 CHF shipping · 3 to 4 days
New
46,98CHF
incl. 32,90 CHF shippingincl. estimated VAT & customsfrom | 1 to 3 days
46,98 CHFNewincl. 32,90 CHF shipping · 1 to 3 days

Price check · in short

What does Lego® Train Tunnel and Tracks Expansion Set (10425) currently cost?

On VERObricks, Lego® Train Tunnel and Tracks Expansion Set (Set No. 10425) is currently listed by 3 shops across 3 offers. The lowest new price in the VERObricks comparison is 27,39 CHF (alternate.de). Other new offers range up to 46,98 CHF. The manufacturer's RRP is 22,90 CHF. The current price per brick is 137,0 cents.

Notes on prices & affiliate links

Displayed prices may differ from actual offers. We update prices regularly, but offers on the linked pages may change quickly. Please note that we earn a commission on some qualified purchases made through partner links (e.g., from Amazon, eBay, or other shops). This only applies to links used within affiliate programs. There are no additional costs for you, and we also provide non-affiliate links to ensure a comprehensive overview of available offers.

Price history · Price development

Has Train Tunnel and Tracks Expansion Set ever been cheaper?

Current: 27,39 CHF; New, best shop
30-day low: 27,39 CHF; on 04. Nov. 2026 · alternate.de
Usual at dealers: 27,59 CHF; 90-day median, final price
All-time low: 26,49 CHF; on 06. Jan. 2025 · alternate.de

Loading chart …

Last 30 price changes, newest first
Date	New	Shop
04. Nov. 2026	27,39 CHF	alternate.de
05. Okt. 2026	27,49 CHF	alternate.de
15. Sept. 2026	27,69 CHF	alternate.de
31. Juli 2026	27,59 CHF	alternate.de
23. Juni 2026	27,79 CHF	alternate.de
16. Juni 2026	30,40 CHF	Lego.de
02. Feb. 2026	27,49 CHF	alternate.de
19. Nov. 2025	27,79 CHF	alternate.de
17. Juli 2025	30,40 CHF	Lego.de
01. Juli 2025	27,29 CHF	alternate.de
05. Juni 2025	27,49 CHF	alternate.de
30. Mai 2025	27,29 CHF	alternate.de
28. Mai 2025	27,49 CHF	alternate.de
22. Mai 2025	27,29 CHF	alternate.de
14. Mai 2025	27,49 CHF	alternate.de
05. Mai 2025	27,29 CHF	alternate.de
25. Apr. 2025	27,49 CHF	alternate.de
09. Apr. 2025	27,29 CHF	alternate.de
07. Apr. 2025	27,49 CHF	alternate.de
04. Apr. 2025	27,79 CHF	alternate.de
02. Apr. 2025	27,49 CHF	alternate.de
14. März 2025	27,79 CHF	alternate.de
11. März 2025	27,49 CHF	alternate.de
10. März 2025	27,79 CHF	alternate.de
04. März 2025	30,40 CHF	Lego.de
16. Jan. 2025	26,49 CHF	alternate.de
14. Jan. 2025	26,29 CHF	alternate.de
06. Jan. 2025	26,49 CHF	alternate.de
03. Jan. 2025	27,29 CHF	alternate.de
02. Jan. 2025	27,49 CHF	alternate.de

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Details

Set details

At a glance

Brand: Lego
Partcount: 20
Age: 2+
Release / EOL: 2025 – 2029
RRP: 22,90 CHF
Price per Part: 57 ct

Building instructionsPDF from the manufacturer

Building instructions

Technical data8 entries

Product

Name: Train Tunnel and Tracks Expansion Set

Dimensions

Packaging width: 26.2 cm
Packaging height: 11.8 cm
Packaging length: 28.2 cm
Packaging weight: 0.7 kg

Identification

MFR: 10425
EAN: 57020175838085702017670379
SKU: 10425

DescriptionManufacturer text

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Preschool kids add even more fun to their LEGO® DUPLO® train sets while learning spatial awareness with this track building toy for toddlers.

Extend toddlers’ learning journeys with this creative track expansion set. Preschoolers create new adventures for their train by adding 10 extra pieces of track, funnel and tunnel elements, and a points switch to change the direction of travel. The set also comes with an action brick that activates the train’s lights as the engine travels over it.

Lego Train Tunnel and Tracks Expansion Set

Train track toy set – Toddlers aged 2+ extend their LEGO® DUPLO® railway adventures and learn development skills with the Train Tunnel and Tracks Expansion Set

Comes with lots of extra pieces to grow the fun – This creative building toy includes 10 track pieces, 1 action brick, a 2-way points piece and tunnel and funnel elements

Anytime gift idea – This extension set makes a fun treat for any toddler who loves to play with their LEGO® DUPLO® interactive toy train sets, sold separately

Quality toddler toys – All elements of this LEGO® DUPLO® toy have been tested to the max to ensure they fulfill demanding child safety standards

Track building that connects to toy train sets – Add this set to LEGO® DUPLO® Town interactive train sets (10427 and 10428) to create an even bigger learning journey for preschool kids

Skill-building playsets – LEGO® DUPLO® build-and-rebuild interactive train toys are designed to develop toddlers’ creative problem-solving, patience, focus and perseverance skills

Dimensions – This 20-piece set includes a tunnel measuring over 7.5 in. (20 cm) high, 6.5 in. (16 cm) wide and 6 in. (15 cm) deep

Gallery

Product images (7)

Alternatives

Similar models from other brands

101075BlueBrixx® Flexible Train Track set, 64 pcsNew · incl. 21,18 CHF shipping42,10 CHFCompare 1 offer

104292BlueBrixx® Double SwitchNew · incl. 14,84 CHF shipping39,95 CHFCompare 2 offers

101074BlueBrixx® Switch Point set, 2x Left, 2x RightNew · incl. 21,18 CHF shipping32,03 CHFCompare 1 offer

110028BlueBrixx® Railroad accessoriesNew · incl. 21,18 CHF shipping46,29 CHFCompare 1 offer

110420BlueBrixx® Railroad Station AccessoriesNew · incl. 21,18 CHF shipping33,71 CHFCompare 1 offer

110084BlueBrixx® Railroad CrossingNew · incl. 21,18 CHF shipping42,10 CHFCompare 1 offer

Looks alike

Looks similar

−1 %10426Lego® Train Bridge and Tracks Expansion SetNew · incl. 16,00 CHF shipping39,89 CHFusual 40,39 CHFCompare 4 offers

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FAQ

Frequently Asked Questions

Where can you buy Lego® Train Tunnel and Tracks Expansion Set?

New stock is available at alternate.de, brickmo, Lego.de (3 shops). VERObricks compares all prices in real time and always shows you the lowest offer — for new and used stock, with shipping cost comparison.

Was Train Tunnel and Tracks Expansion Set ever cheaper? Price history & all-time low

VERObricks tracks the price history of Lego® Train Tunnel and Tracks Expansion Set across all shops. The historical low for new is 26,29 CHF. The highest observed new price was 31,79 CHF — a range of 5,50 CHF. Currently, the price is 1,10 CHF (4%) above the all-time low. The price trend is upward — the price has risen recently. A price alert may pay off. With the VERObricks price alert you'll be notified instantly when the price reaches your target.

What is Lego® Train Tunnel and Tracks Expansion Set? Contents, parts & details

Lego® Train Tunnel and Tracks Expansion Set is a set by Lego from the "LEGO® DUPLO®" theme (Set No. 10425, EAN: 5702017583808). According to the VERObricks database, the set includes 20 parts, Recommended age 2+. Manufacturer description: "Preschool kids add even more fun to their LEGO® DUPLO® train sets while learning spatial awareness with this track building toy for toddlers." On VERObricks you can find the set in these categories: LEGO® DUPLO®, Kids, Trains, Toddlers.

When was Lego® Train Tunnel and Tracks Expansion Set released and how long will it stay available?

Lego® Train Tunnel and Tracks Expansion Set was released in January 2025. According to the manufacturer's planning, the set retires at the end of 2029 (EOL, end of life). While it is in regular stock, keep an eye on the price history; after retirement, new copies come from remaining stock only and prices often rise. The official building instructions are available as a PDF directly from the manufacturer, linked in the set details section.

Is Train Tunnel and Tracks Expansion Set worth it at the current price?

At the current VERObricks best price of 27,39 CHF for 20 parts, that works out to 137,0 cents per part. The high price per part suggests a premium or collector set, where collectibility plays a larger role than pure part count.