#20013 - Fits motors with 2.4 mm shafts. Same application as 20021
#20013 - Fits motors with 2.4 mm shafts. slip fit, attach with #20010 flywheel cement
Same application as 20021 - Fits: Mashima and other can motors when used in Athearn S12 & SW's and narrow hood units with a short wheelbase such as AHM Alco 1000. Also fits in many steam repowering applications.