Customer Questions and Answers for Wash Arm Cap by Whirlpool

This cap secures the dishwasher wash arm to its support, helping keep the arm properly positioned so water jets can spin and spray effectively for consistent cleaning performance.

• Holds the wash arm in place on its hub/support
• Can help address a loose, wobbly, or detached wash arm
• Replacing a damaged or missing cap can restore stable arm rotation

• Disconnect power and turn off water before service
• Remove the lower rack for access; lift off the wash arm
• Unscrew/press off the old cap; seat and secure the new cap
• Ensure the wash arm spins freely by hand before reassembly