This Jabsco Service Kit is built for older 18590 Series Macerator Pumps that use brass studs, washers, and acorn nuts in their construction. It’s a rebuild kit rather than a full pump replacement.
It covers the fasteners and small hardware that wear or corrode over years of service. A functional pump body can get a fresh set of mounting hardware instead of an entirely new unit.
A Stainless Steel Bolt Kit (17288-1000) must be purchased separately to complete the rebuild. It’s worth ordering both together for a full service job. Explore more pump parts and accessories.
- For older 18590 Series Macerator Pumps
- Covers brass studs, washers, and acorn nuts
- Rebuild kit, not a full pump replacement
- Stainless Steel Bolt Kit sold separately








