Motors LEGO® - LEGO® Electric Train Motor 9V RC Train Powered up - The shop Briques Passion
Electric, Train Motor 9V RC Train with Black Axles and Wheels (x1688 / 3706 / 55423c01) : Part x1688c01 | BrickLink
This Old Track: Maintaining and Restoring Metal 9V LEGO Track - BrickNerd - All things LEGO and the LEGO fan community
LEGO Light Gray Train Motor Decorative Side for 9V Motors (2871) | Brick Owl - LEGO Marketplace
Fixing 9V train motor — Brickset Forum
LEGO part 87574c01 - Black Electric, Train Motor 9V RC Train with Integrated PF Attachment, Orange Wheel Holders (motor only, no attached wheels) at BrickScout