LEGO Set

Train Tunnel and Tracks Expansion Set

10425-1

Released: 2025 · Parts: 20 · Theme: Trains

Train Tunnel and Tracks Expansion Set (10425-1) is a Trains LEGO set released in 2025 with 20 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Trains sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 11 unique part types.

→ Read official LEGO build manuals on this page
→ Browse the full parts inventory
→ Verify loose bricks with our free part scanner
→ Check market value for parts and minifigs

Buying checklist

Quick context before you buy this set used or verify a marketplace listing.

Release year

2025
Catalog scale

20 parts listed · 11 inventory lines tracked
Minifigures

No minifigs in inventory (brick-only or Technic set)
Build manual

Digital booklet available on this page — use it to verify bag contents
Shipping weight (est.)

~136 g for parts inventory (excludes box/minifig packaging)
Before you buy used

Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing

Check completion What can I build?

Related sets in this theme

Train Tracks

10882-1 · 2018 · Trains

23 parts

Train Accessory Set

10506-1 · 2013 · Trains

24 parts

Track Repair Train

5607-1 · 2008 · Trains

16 parts

Train Tunnel

2938-1 · 2000 · Trains

15 parts

Train Bridge and Tracks

10872-1 · 2018 · Trains

26 parts

Level Crossing

3773-1 · 2005 · Trains

14 parts

Bridge

3774-1 · 2005 · Trains

26 parts

Intelligent Train Cargo (Explore)

3326-1 · 2002 · Trains

14 parts

Market value

No estimate on BrickID yet

We don't pull live prices from marketplaces automatically — that requires paid seller API access. Check live listings below, or be the first to share a price you paid or saw.

Check live listings →

Share a price you paid or saw

Help other collectors — we aggregate anonymous reports on this page.