These models are accurate to the roadname/engine number with regards to the fuel tank size, truck brake cylinders and dynamic/non-dynamic brake hatch. They also feature the precision detail and powerful five-pole motor with dual brass flywheels that KATO models are known for. Each SD38-2 equipped with KATO magnetic knuckle coupler, 8-pin DCC socket and golden-white LED headlight. These models are also "Sound Friendly," featuring the capacity for the optional installation by hobbyists of a 1.1" (28mm) diameter speaker in the fuel tank for use with onboard sound unit (speaker and sound unit available from other manufacturers). Hobbyist-installed detail parts will enhance the enjoyment of these models.