Pentair 3/8″ Helical Split Lockwasher | U43-12SSZ
OEM Pentair U43-12SSZ 3/8″ split lockwasher. Prevents loosening from vibration in XF, Dyna-Pro, and Dura-Glas pumps.
Features
- OEM Pentair replacement for secure fastening performance.
- Helical split design maintains tension under vibration.
- Corrosion-resistant stainless steel for long service life.
The Pentair U43-12SSZ 3/8″ Helical Split Lockwasher is a genuine OEM fastening component designed to keep bolts and screws securely tightened in high-vibration pool pump environments. Its split design applies continuous spring tension, preventing fasteners from loosening during operation.
Used across Pentair and Sta-Rite pump systemsincluding IntelliFloXF, WhisperFloXF, Max-E-ProXF, Dyna-Pro, and Dura-Glas modelsthis washer is essential for maintaining structural integrity and reliable performance.
Constructed from corrosion-resistant stainless steel, it withstands moisture, chemicals, and demanding pool conditions.
Pro Tip
Always replace lockwashers during reassemblyonce compressed, they lose tension and wont secure fasteners properly.
Installation Tips
Disconnect power before servicing. Install washer between bolt head and surface. Do not reuse compressed washers. Tighten to proper torque without overtightening.
