Jabsco Shim Kit 316 Stainless 24521-9000B

Q: What material should I choose for my application?
Elastomer and wetted-part materials should be selected for chemical compatibility with the fluid being pumped; FKM, nitrile, EPDM and PTFE each suit different chemical and temperature ranges.

Q: Is this a wearing part that needs periodic replacement?
Yes — seals, o-rings, gaskets and similar wetted parts are wear items on any pump and are worth replacing on a routine service schedule rather than waiting for a failure.

Q: Does this part require special tools to install?
Most parts in this category install with standard hand tools; a kit that includes a specialized tool will say so in its own listing.

Q: Will this fit my pump if the model number doesn't exactly match what's listed?
Not necessarily — Jabsco's pump ranges use size- and material-specific parts that are not interchangeable across models, so match the exact code before ordering.