The 41-CUS-11 truck was used by AC&F on cars built for the Union Pacific in 1949. Kato makes the only N scale truck in this style (although in typical Kato fashion, they simply refer to it as a "smooth side passenger truck").
The Kato truck was designed for their older smooth side passenger cars (and also used on some of their more recent City of Los Angeles, El Capitan, Super Chief, and Great Northern cars).
Kato catalog #800031 (Smooth Side Passenger Truck, Black w/o Coupler, 1 ea)
Kato catalog #800032 (Smooth Side Passenger Truck, Gray w/o Coupler, 1 ea)
Kato catalog #800033 (Smooth Side Passenger Truck, Silver w/o Coupler, 1 ea)
Kato catalog #800041 (Smooth Side Passenger Truck, Black w/ Semi-Automatic Knuckle Coupler, 1 ea)
Kato catalog #800042 (Smooth Side Passenger Truck, Gray w/ Kato Knuckle Coupler, 1 ea)
Kato catalog #800043 (Smooth Side Passenger Truck, Silver w/ Semi-Automatic Knuckle Coupler, 1 ea)
Kato catalog #800045 (Smooth Side Passenger Truck, Black w/ Fully Automatic Knuckle coupler, 1 ea)
Kato catalog #800046 (Smooth Side Passenger Truck, Black, Observation w/o coupler, 1 ea)
Kato catalog #800093 (Smooth Side Passenger Truck, Silver w/ Kato Magnetic Knuckle Coupler, 1 ea)
Kato catalog #800102 (Super Chief Pullman Truck, Silver, 2 ea)
Kato catalog #800104 (Pullman Passenger Truck, black w/ Fully-Automatic Knuckle Coupler, 2 ea)
Wheel Diameter 0.220" (scale 36")
Wheelbase 0.680" (scale 9')