The Whirlpool WPW10131111 Washer Cap is a little but vital part of your washing machine's agitator. It rests atop the agitator, the core support that rotates the laundry during the cycle. The agitator's water flow is streamlined by the cap, which ensures that clothing and detergent are moved around the wash tub effectively. An appropriately fitted cap shields the agitator's internal components from debris and stops leaks. Replacing a broken or cracked cap is critical for maintaining optimal washing performance and preventing further damage to your washer. Compatible with a variety of Whirlpool, Maytag, and Kenmore washing machine models is this original Whirlpool component.