The mb117549-12 was used in the following central vacuum models: P125p p225 / move since may 1997 s2000 since may 1997. S2600 after June 2006. S3200 since July 1997. Sr50 - this motor replaces the mb117467 used in the sr50. Also used by other manufacturers including: Beam, bud, Electrolux, imperium, no one, silent master, and vacuole. Replacement for motors 117478, 117467, 117129, 116465, 116467.