The company Gmeinder initially developed eight prototype locomotives, including three Köf 10 (later BR 331) and Köf 11 each. The power transmission was done via chains, which had already proven effective before. DB decided to procure the Köf 11, which later became the series 332. A total of 312 series locomotives were acquired. The first production series up to Köf 11 036 still featured the old standard locomotive lanterns of DB, while from Köf 11 037 onwards, new, permanently installed lamps were used. In addition to Gmeinder, the locomotive factories Jung Jungenthal and Orenstein & Koppel were involved in the construction of Köf 11. Starting in 1990, the machines were gradually retired due to the decline in freight and especially shunting traffic on the railways, with the last one, 332 262, officially leaving the DB fleet in 2002. However, a very large number of these machines found new roles with private and industrial railways or even with museum railways, where they are still in operation. The locomotive with the operating number 332 021-5 was delivered as Köf 11 021 with the factory number 5258 by Gmeinder in 1962 and was accepted on December 1, 1962. On January 1, 1968, it was renumbered to 332 021-5. Until 1981, it was stationed at Bw Stuttgart, until 1987 in Kornwestheim, until 1997 at Bw Singen, and from 1997 back at Bw Kornwestheim. It received its paint in Orient Red / Light Grey in July 1991.