Behind the impeller is a ceramic washer (stationary) and a spring-loaded carbon seal. Pry these out carefully with a flathead screwdriver. Clean the seal cavity thoroughly. Any grit here will destroy your new seal immediately.
: Essential for preventing leaks at the motor interface. Common part numbers include # (Buna N) or # Impeller Screw , superseded to # (5/16-24 x 3/4 round head). Replacement Parts Sealing and Hardware Body O-Ring (Buna N) or # Filler Plug O-Ring (Buna N) or # Segment O-Ring (Buna N) or # Filler Plug : Originally # , superseded to # Drain Plug : Originally # , superseded to # : Used for spacing, available in sizes .010 (# ) and .015 (# Replacement Parts External and Mounting Parts (superseded to # ) used on the 2-inch suction hose. Check Valve : Found in the pump intake. Part # (Buna N) or # Skid Assembly : The base of the unit. Part # Slinger O-Ring , protects the engine from seal leakage. Replacement Parts Resources for Replacement homelite ap220 water pump parts
The impeller is screwed onto the motor shaft (usually left-hand thread—clockwise to loosen!). Hold the motor shaft with a screwdriver through the cooling fan at the back, or use an impeller removal tool. Unscrew the impeller. Behind the impeller is a ceramic washer (stationary)
Don't scrap your Homelite AP220 because of a small leak or weak flow. For less than $30 and 45 minutes of work, you can restore it to factory condition. The key is accurate diagnosis—identifying whether you need a $6 impeller, a $12 mechanical seal, or a $4 O-ring. Any grit here will destroy your new seal immediately
This is the stationary plastic piece that directs water from the impeller to the outlet hose. It sits directly over the impeller.
Finding parts for the series (including models AP2201 and AP2202) can be tricky as many original components are now "No Longer Available" (NLA). However, essential wear items like O-rings and specific hardware are still stocked by major parts suppliers. Common Replacement Parts O-Rings & Seals :