Train Tunnel and Tracks Expansion Set
- Set number
- 10425-1
- Theme
- Duplo
- Sub theme
- Trains
- Year
- 2025
- Pieces
- 20
- Age
- 2+
- Availability
- Retail
- Packaging
- Box
- Box size (L × W × H)
- 11.1 × 10.3 × 4.6 in (28.2 × 26.2 × 11.8 cm)
- Model size (L × W × H)
- 6.3 × 5.9 × 7.9 in (16 × 15 × 20 cm)
- Box weight
- 1.55 lb (0.704 kg)
- Retail price
-
- US $19.99
- Canada CAD $24.99
- UK £17.99
- Europe €19.99
- Store prices the store's own offer
-
Out of stock
- Not in stock since we started checking on 2026-09-27
- Listed at $12.64
Last checkedPrice drop $15.99 → $12.42 on 2026-10-06 - Current market value
-
: Avg. New $27.02 +35% vs retail · Avg. Used $156.90
- New median $27.15 · typical $24.99–$29.74 · 16 listings
- Used median $156.90 · typical $156.90–$156.90 · 1 listing · few listings
asking prices · updated - Release date
- 2025-01-01
- Retiring
- 2027-07-31
- Shelf life
- 2 years and 7 months
- Instructions
- All 18 instruction PDFs
Parts (11 lots, 4 exclusive parts)
| Qty | Image | Part | Name | Color | Sets | |
|---|---|---|---|---|---|---|
| 1 |
|
98223 |
Duplo Brick 2 x 4 Curved Top | Bright Green | In 21 sets | |
| 1 |
|
6510 |
Duplo Plant, Flower with 1 Top Stud | Bright Green | In 127 sets | |
| 1 |
|
5557 |
Duplo Arch 4 x 10 x 7 | Dark Bluish Gray | Exclusive | |
| 10 |
![Duplo Train Track 4 x 8 Curved [Short] (Light Bluish Gray)](/img/rb/parts/elements/6207493.jpg)
|
6378 |
Duplo Train Track 4 x 8 Curved [Short] | Light Bluish Gray | In 7 sets | |
| 1 |
|
51560 |
Duplo Train Track Switcher with Red Switch | Light Bluish Gray | In 5 sets | |
| 1 |
|
84195 |
Duplo Plant, Flower with 1 Top Studs | Medium Lavender | In 14 sets | |
| 1 |
|
35967 |
Duplo Train Track, End of the Line Rail Stop | Reddish Orange | Exclusive | |
| 1 |
|
42025pr0005 |
Duplo Brick 1 x 3 x 2 Triangle with Train, Orange Border Print | White | Exclusive | |
| 1 |
|
35962pr0006 |
Duplo Train Action Plate with Lamp Print, Light Action | White | Exclusive | |
| 1 |
|
4785 |
Duplo Train Tracks, Ramp | Yellowish Green | In 2 sets | |
| 1 |
|
5370 |
Duplo Train Track, Straight with 2 x 8 Plate on Both Sides | Yellowish Green | In 3 sets |
Building instructions
- 10425_CS_BI_Info_Booklet extra
- 10425_DE_BI_Info_Booklet extra
- 10425_ES_BI_Info_Booklet extra
- 10425_ET_BI_Info_Booklet extra
- 10425_FR_BI_Info_Booklet extra
- 10425_HU_BI_Info_Booklet extra
- 10425_IT_BI_Info_Booklet extra
- 10425_LT_BI_Info_Booklet extra
- 10425_LV_BI_Info_Booklet extra
- 10425_PL_BI_Info_Booklet extra
- 10425_PT_BI_Info_Booklet extra
- 10425_RO_BI_Info_Booklet extra
- 10425_SK_BI_Info_Booklet extra
- 10425_ZHSI_BI_Info_Booklet extra
- BI 3106, 16, 10425 V29
- BI 3106, 16, 10425 V39
- BI 3106, 16, 10425 V29
- BI 3106, 16, 10425 V39
PDFs from LEGO.com. The same booklet is often printed in several versions (e.g. V29 EU A4 format, V39 US Letter format).