While running in the cold weather, it has sounded like there is an angry bird under the hood of my wife's '08 grand cherokee. After some highly technical investigative work (I popped the hood and spun the fan), I found the cause to be the radiator fan.

I tried RockAuto as well as my friendly VatoZone and "Orailee Auto pars." and can't seem to find one. Are these only available from the stealerships?

1970 Dodge Charger R/T Hemi Orange U-code 4-speed
1971 Jaguar E-Type Series 3 V-12 4-speed 2+2 Signal Red.