Services are operated by three dedicated four-car diesel multiple unit sets based at Akita Depot, named Aoike (青池), Buna (橅), and Kumagera (くまげら), converted from former KiHa 48 DMU cars.

The original KiHa 48 Aoike trainset was replaced by a new HB-E300 series hybrid DMU set, which entered service on 4 December 2010.

[1] This was the first Resort Shirakami trainset introduced, converted from former KiHa DMU cars at JR East's Tsuchizaki Works, and entering service in March 1997.

[6] The end cars had large panorama windows and featured conventional unidirectional seating, with a small lounge space behind the driving cabs.

[7] Following the popularity of the original Resort Shirakami (Aoike) trainset, a second set was built in March 2003, from former KiHa 40 DMU cars at JR East's Tsuchizaki Works, and named Buna (橅, "Japanese beech").

[5] In December 2010, it was lengthened to four cars with the addition of KiHa 1543, formerly part of the original Aoike set, and formed as shown below.

[6] As with the earlier Aoike set, the end cars have large panorama windows and feature conventional 2+2 abreast unidirectional seating, with a small lounge space behind the driving cabs.

[6] As with the earlier trainsets, the end cars have large panorama windows, ten rows of conventional 2+2 abreast unidirectional seating, and a small lounge space behind the driving cabs.