166th Division (1st Formation)(People's Republic of China)

The 166th Division was created in November 1948 under the Regulation of the Redesignations of All Organizations and Units of the Army, issued by Central Military Commission on November 1, 1948, basing on the 4th Independent Division, PLA Northeastern Field Army. The 166th Division was a Korean unit, composing of mostly Korean officers and soldiers.

The division was under control of Northeastern Military District. Under the flag of 166th division it took part in the Chinese Civil War. In July 1949, the division was disbanded, and all its 10620 Korean officers and soldiers moved to North Korea, where it was re-organized as 6th Division of the Korean People's Army.

As of its disbandment the division was composed of:
 * 496th Regiment;
 * 497th Regiment;
 * 498th Regiment.