In September 1942, following heavy losses around Kalach,[3] the corps moved into the Reserve of the Supreme High Command (Stavka reserve) and was reorganized as the second instance (formation) of the 5th Mechanized Corps.

As such, the corps remained with the 6th Guards Tank Army for the remainder of the war in Europe, and was then transferred with its parent army to the far east, seeing action against Japanese forces under the direction of the Transbaikal Front.

The corps was in combat near Kalach in 1942, Smolensk and Lenino in 1943, Korsun and Iasi-Kishinev in 1944, and at Budapest and Vienna in 1945, as well as fighting in the Manchurian Operation in September 1945.

[5] The 9th Guards Mechanized Corps was notable for its use of U.S. Lend-Lease M4A2-76 diesel-engined Sherman tanks during 1944-45.

It was stationed at Yasnaya, part of the Transbaikal Military District's 6th Guards Tank Army.