Questions tagged [duplo]
LEGO Duplo bricks are designed for young children aged 1½ to 5 years. Duplo bricks are twice the length, height and width of traditional Lego System bricks.
96 questions
4 votes
0 answers
128 views
Are there any differences between the content of the old package 10979 and the new package 10979?
There are an old and a new style packaging of the 10979 set. Are there any differences in the content? Like different quality or anything like that?
7 votes
1 answer
256 views
Is the new Duplo bridge (10426) better than the old one (10872) in terms of how easily a train can pull itself up?
Is the new bridge higher / smaller than the old one? (The dimensions on the product page aren’t helpful as the new bridge has a high frame and the given height is the height of the frame not the ...
3 votes
2 answers
639 views
What are the technical differences between the 2018 and 2025 Duplo train bases?
I've aware that the newer Duplo train base interacts differently with the old function bricks. How does the actual train base differ from the original?
7 votes
1 answer
183 views
Possible connections for Duplo Boulder
65870 Duplo Rock Boulder has some interesting internal geometry, but I can't seem to figure out how/if it is "in system" to attach to other parts. Which parts (if any) attach to this part, ...
1 vote
0 answers
173 views
Duplo Steam Train sound problem
I just bought a secondhand Duplo Steam Train set but it won’t produce any sounds. I have put new batteries in it. Even when pressing the green button to switch it on it doesn’t make the startup sound. ...
1 vote
1 answer
596 views
Duplo 10874 & 10426 bridge compatibility
Can the Duplo Steam Train 10874 climb the new bridge in Duplo 10426 Train Bridge and Tracks?
7 votes
5 answers
3k views
Functionality of new purple, orange and green Duplo train action bricks
From what I can see Duplo train set 10427 will have new purple and light green action bricks. Set 10428 will have new orange, dark green and purple action action bricks. With the current trains I have ...
4 votes
0 answers
253 views
Determining the approximate age of old duplo bricks
I have a lot of old duplo bricks and want to figure out their approximate age since I'm a bit worried that old duplo bricks might contain unsafe levels of Cadmium after reading reports like this https:...
1 vote
0 answers
51 views
How to fix yellowed white DUPLO boat? [duplicate]
I have a large white DUPLO piece for the Sea Explorer. Part of it is yellowed. Not sure how… I thought maybe it was sun damage but not sure why that would cause it to turn yellow. I’ve already soaked ...
4 votes
2 answers
367 views
Are there duplo bricks 1x4x1 and 1x2x1?
My kids like to build buildings and play with them, and for some reason they prefer the Duplo size to LEGO. I would like to give them less squatty looking walls, and am wondering if they have 1x4 and ...
2 votes
2 answers
873 views
DUPLO cargo train 10875 blue action brick has no effect
I bought my daughter Cargo Train 10875 and it all works OK with one exception—the blue action brick has no effect. The other action bricks all have some noticeable effect. I asked LEGO to send me a ...
3 votes
3 answers
1k views
Duplo train engine base part - replacement DC motor - which part to buy?
I have two Duplo train base parts, one that works, one that I want to repair, as it does not work (connects via Bluetooth, but in the end motor does not move). I disassembled that and figured out the ...
4 votes
3 answers
626 views
Steam train 10874 draining batteries in seconds
Santa brought my son a new Steam train 10874. We assembled it and put brand new 4xAAA (1.5V) batteries. The train works for 4-5 seconds and then stops. Connected it to the app and it shows batteries ...
3 votes
1 answer
1k views
DUPLO train engine base part# 28743 engine is not working
I've went through all of the steps here: How to disassemble the propulsion wheels of the LEGO/DUPLO train engine base part# 28743 drivetrain? which was a great learning exercise but unfortunately it ...
9 votes
2 answers
1k views
Identify Duplos that were in the Red Bunny Purse
Can anyone tell me what Duplos were included in the Red Bunny Purse? I believe that was purchased in 1984.