Customer Questions and Answers for Spray Arm Nut by Whirlpool

This spray arm retaining nut secures the dishwasher spray arm to its hub, keeping it aligned and spinning for consistent wash coverage. Replacing a worn or stripped nut restores spray performance and helps prevent the arm from detaching during cycles.

• Secures the spray arm to the hub/pump outlet so it rotates freely
• Helps maintain proper alignment and clearance to avoid rubbing or leaks
• Direct replacement for a cracked, loose, or stripped spray arm nut
• Common symptoms: poor cleaning, rattling noises, or the spray arm falling off

• Disconnect power and water supply; remove the lower rack for access
• Unscrew the old nut and lift off the spray arm; clean any debris on the hub
• Position the arm and thread the new nut by hand until snug; do not overtighten
• Spin the arm by hand to confirm free movement before running a test cycle