Jabsco SK890 Service Kit for 50890 Series Pump

The Jabsco SK890 Waste Pump Service Kit is designed for rebuilding the Jabsco 50890 single diaphragm pump. These are the wear parts that fail first even when the motor and housing are still working fine.

It includes the cover, diaphragm, hex head screws, a recessed pan head screw, a washer, two pump joker valves, and two pump ports. That covers the full set of internal components that see the most wear.

For a waste pump specifically, keeping the joker valves and diaphragm fresh matters even more than on a freshwater pump. A worn diaphragm on a waste system can mean a leak somewhere far less pleasant to deal with. Explore more bilge and water pumps.

• Rebuilds the Jabsco 50890 single diaphragm pump
• Includes cover, diaphragm, screws, and washer
• Includes 2 joker valves and 2 pump ports
• Keeps a waste pump sealed and leak-free