Washing machine agitator directional cogs. These parts are also referred to as "dog ears." 4 per package. If the upper section of the agitator isn't turning properly, then these cogs are likely worn and will require replacement.
Washer drive block for inner tub. A worn drive block may cause the washer to spin slowly, causing the clothes to be soaked at the end of the cycle. The washer may also make a loud knocking noise at the beginning of the spin cycle.
Washing Machine Agitator repair kit with reversing dog ears and, long cam, and retainer. If the upper section of the agitator does not work then the cam and dog ears are likely worn and require replacement.
Thrust washer for washing machine agitator. This thrust washer is found between the upper and lower sections of the agitator.
Washing machine agitator base
Upper agitator assembly