5 pole skew wound motor 12-24v type 130

This is a type 130 shape motor. It is a 5 pole skew wound varient with rare earth magnets and is rated up to 24v. This is ideal for crawling at low speeds as it has massive amounts of torque at the slowest of speeds.
 
This motors fit into a large range of locomotives from all the major brands.
 
please note that depending on your model you may have to trim the shaft as these come standard with dual shaft.