SM13A casting number see photo. Removed from a 2005 model year Forester XT with a 2.0 EJ205 Turbo engine. Mounting point ground off on the front left (viewed from the front of the vehicle). I think it was for the intake pipe to the turbo.
Secondary Air Pump for Subaru Forester SF SG Impreza Coupe Hatchback Saloon
Secondary Air Pump for Subaru Forester SF SG Impreza Coupe Hatchback 14828AA060
Secondary Air Pump For Subaru Forester SF SG Impreza Coupe Hatchback 14828AA060
HT Leads Ignition Cables Set fits SUBARU FORESTER SF5, SG 2.0 00 to 05 EJ202 CI
Secondary Air Pump For Subaru Forester SF SG Impreza Coupe Hatchback Sedan
Secondary Air Pump Assembly For Subaru Forester XT Impreza WRX 2.5 (06-08)