The SNCF Class Y 9000 is the new designation for modernized and re-engined Y7100 and Y7400 shunters.

The refurbishment was undertaken by a consortium consisting of SNCF, Socofer and Voith Turbo.

Socofer refurbished 22 full locomotives at its Tours plant, and delivered 88 kits to SNCF's Sotteville-Quatre-Mares workshops.

Later locomotives will be used by SNCF freight division FRET.

This diesel locomotive-related article is a stub.