Buy OEM Subaru Part # 86532FA180. Arm Windshield Wiper (Passenger, Driver). Windshield Wiper Arm If your wiper arm is damaged, your wiper blades might chatter excessively

A Wiper Arm.

ARM ASSEMBLY-WINDSHIELD WIPER DRIVER ARM ASSEMBLY-WINDSHIELD WIPER ASSISTOR Windshield Wiper Arm

Fits Impreza, Outback

Windshield Wiper Arm
If your wiper arm is damaged, your wiper blades might chatter excessively even if they’re new. Let our service department replace the wiper arm on your Subaru if necessary.