Duplo, Train Passenger Locomotive Base with Yellow Battery Compartment and Red Wheels : Part 2961 | BrickLink
Duplo, Train Passenger Locomotive Base with Black Battery Compartment, Light Bluish Gray Wheels : Part 5135c01 | BrickLink
Steam Train 10874 | DUPLO® | Buy online at the Official LEGO® Shop US
Amazon.com: LEGO DUPLO Town Cargo Train Set 10875 with Sound & Light, Direction & Stop Action Bricks, Push & Go Motor and Moving Crane Toy, Gifts for 2-5 Year Old Kids, Boys
Funlock Duplo Battery Operated Toys Train Blocks For Kids Educational Toys Electric Train For Children - Blocks - AliExpress