The Rinse Aid Door (with Gasket) is an OEM replacement part for Bosch dishwashers. It is responsible for covering and sealing the rinse aid dispenser. Problems with a rinse aid door can cause leaks during washing. Causes of issues may include wear over time, damage to the door or integrated gasket. This can compromise the seal needed to contain rinse aid. Symptoms of a problem rinse aid door: Observing liquid around the dispenser area  Water spots after a cycle A loose or damaged gasket allows contents to leak underneath. This genuine Bosch OEM replacement part is also compatible with Thermador, Gaggenau, and some Kenmore modelsPart Number 00166623 (AP2802335) replaces 166623, 935387, AH3439214, EA3439214, PS3439214, PS8697157.