Customer Questions and Answers for Cap (Impeller) by Whirlpool

Impeller cap that fits over the pump impeller to protect moving parts and help maintain proper water circulation. Replacing a cracked or missing cap helps reduce leaks and restore reliable pump performance. What it does:

• Covers and protects the pump impeller from debris and direct contact.
• Helps maintain correct water flow and impeller alignment inside the pump housing.
• A damaged or missing cap can cause reduced circulation, noisy operation, or leaks near the pump area.
• Small, inexpensive replacement that can prevent further pump damage when installed promptly.

• Disconnect power (and water if applicable) before accessing the pump area.
• Access may require removing an access panel or lower kick plate; keep fasteners and panels organized.
• Press the cap onto the impeller until fully seated; avoid forcing if resistance indicates other damage.
• Inspect the impeller and nearby seals while replacing the cap; replace the pump assembly or seals if they show wear.