When a pump begins showing signs of seal fatigue, the smallest internal component can quickly become the reason a larger repair is needed. The U.S. Seal PS-100 shaft seal is built for compatible 5/8 inch shaft applications and uses Buna sealing material to restore the critical barrier between the wet end and the motor side of the assembly. It is a focused replacement part, but it plays an outsized role in protecting the pump from ongoing leakage and avoidable internal damage.This seal is a strong choice when the original part has hardened, begun seeping, or no longer maintains the clean, controlled seal the pump was designed to have. Replacing the shaft seal during service is often one of the smartest ways to protect the rest of the rebuild, especially when the surrounding wet-end components are still in workable condition.For service professionals and experienced repair buyers, using the correct seal size and material matters. The PS-100 helps keep the repair accurate, controlled, and worth doing right the first time. U.S. Seal PS-100 shaft seal For compatible 5/8 inch shaft applications Buna sealing material Helps restore the pump’s primary wet-end sealing point Ideal when the original seal is leaking, worn, or hardened
![U.S. Seal Shaft Seal [PS-100] [5/8" Shaft] [Buna] (PS-100)](https://cdn.shopify.com/s/files/1/1751/9347/products/35-423-1000_xl.jpg?v=1486197913&width=480)
