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.
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Building instructions
Official LEGO instructions — read on BrickID
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Parts in this set
11 parts · updating…
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Duplo Arch 4 x 10 x 75557 · ×1 · Dark Bluish Gray -
Duplo Brick 1 x 3 x 2 Triangle with Train, Orange Border print42025pr0005 · ×1 · White -
Duplo Brick 2 x 4 Curved Top98223 · ×1 · Bright Green -
Duplo Plant, Flower with 1 Top Stud6510 · ×1 · Bright Green -
Duplo Plant, Flower with 1 Top Studs84195 · ×1 · Medium Lavender -
Duplo Train Action Plate with Lamp Print, Light Action35962pr0006 · ×1 · White -
![Duplo Train Track 4 x 8 Curved [Short]](https://cdn.rebrickable.com/media/parts/elements/6207493.jpg)
Duplo Train Track 4 x 8 Curved [Short]6378 · ×10 · Light Bluish Gray -
Duplo Train Track Switcher with Red Switch51560 · ×1 · Light Bluish Gray -
Duplo Train Track, End of the Line Rail Stop35967 · ×1 · Reddish Orange -
Duplo Train Track, Straight with 2 x 8 Plate on Both Sides5370 · ×1 · Yellowish Green -
Duplo Train Tracks, Ramp4785 · ×1 · Yellowish Green