The Xylem Bell & Gossett 186543LF Seal Kit #8 is a high-quality mechanical seal replacement designed for use in B&G pumps with 1-5/8″ shafts. This kit is engineered to restore pump performance and ensure leak-free operation in HVAC, plumbing, and hydronic systems. With a lead-free construction, it meets modern compliance standards and supports long-term system efficiency.
Technical Specifications
- Model: 186543LF
- Product Type: Mechanical Seal Kit
- Seal Kit Number: #8
- Shaft Size: 1-5/8″
- Construction: Lead-Free (LF)
- Compatible Pumps: Bell & Gossett Series 1510, 1531, 80, 80-S, 90, 90-S (select models)
- Temperature Rating: Up to 250°F (depending on system fluid)
- Pressure Rating: Up to 175 PSI (varies by system)
- Seal Material: Carbon/Ceramic or Equivalent
- Application: HVAC, Hydronic Circulating Pumps
- Condition: New
- Warranty: 1-Year Replacement Warranty
Key Features
- Drop-in replacement for worn or leaking mechanical seals
- Precision-fit for 1-5/8″ pump shafts
- Supports long-term sealing in demanding hydronic systems
- Lead-free design for regulatory compliance
- Trusted B&G quality for reliable system performance
Compatible Accessories
- Bell & Gossett bearing assemblies
- Shaft sleeves
- Coupling kits
- Gaskets and flange kits
Industry Applications
- Commercial HVAC systems
- Hydronic heating and cooling loops
- Industrial fluid handling
- Domestic water circulation
- Installation & Maintenance Notes
- Confirm shaft size and pump model before ordering
- Lubricate seal face during installation
- Follow Bell & Gossett service procedures
- Inspect shaft and sleeve for scoring or wear
- Periodically monitor for signs of leakage or vibration
Request a Quote now or call us at 1-800-755-2883 for expert assistance.