Kato 1-701A Diesel Locomotive JNR DD51 Cold-resistant type- HO Scale
 
The DD51 class was introduced in 1962 as the main diesel locomotive for non-electrified main lines. At its peak, there were 649 DD51s, and during the mass production process, variations were created for cold and warm climates, and for passenger and freight trains. They pulled a variety of passenger and freight cars, and sometimes even worked in multiple units.