The cam gears are a common piece to be broken when swapping engines, doing head work, or anything else that may require you to remove them.
Also, if you have had a bearing failure, and you see signs of metal contamination in your oil, we strongly recommend replacing these as they are known to hold that contamination and resist cleaning.
Don't waste time trying to track down used parts, when you can have the brand new OEM gears for a great price!
These will fit all of the 2008+ Subaru STi 2.5L Turbo models.
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.