Description
Pentair LA125 Nut Set (2-Pack) for Booster Pump Hardware
The Pentair LA125 is an OEM stainless steel nut set used on Pentair booster pump assemblies. These nuts are commonly used to secure booster pump hardware (such as bracket/volute mounting points) and are a direct replacement when original nuts are missing, corroded, or damaged during service.
Key Details
- Manufacturer: Pentair
- Part Number: LA125
- Includes: 2 nuts (2-pack)
- Thread Size: 5/16″-18
- Material: Stainless steel
- Application: Booster pump mounting/assembly hardware
Common Applications
- Pentair Universal Booster Pump assemblies that use 5/16″-18 mounting nuts
- Selected Pentair/Polaris booster pump configurations that use the same 5/16″-18 hardware at the volute/bracket mounting points
What This Part Does
- Provides secure fastening for booster pump components where 5/16″-18 threaded hardware is specified.
- Helps maintain proper alignment and vibration resistance when the pump is running.
- Stainless construction helps resist corrosion in outdoor pool equipment environments.
When to Replace
- Nut is missing after service or disassembly
- Threads are stripped or will not tighten securely
- Corrosion or seizure prevents proper removal/installation
- Hardware loosens repeatedly due to worn fastening components
Installation Notes
- Disconnect power at the breaker before servicing any pump.
- Start threads by hand to prevent cross-threading.
- Tighten evenly and securely, but do not overtighten against plastic components.
- If you are replacing multiple fasteners, tighten in an alternating pattern to keep parts seated evenly.
Maintenance Tip
If fasteners are corroded or seized, inspect nearby brackets and mounting surfaces for rust staining or vibration wear. Replacing worn hardware early helps prevent misalignment and premature component failure.
Related Products (Aqua Pool Supply)
- Pentair booster pump parts
- Pentair booster pump bolts
- Pentair booster pump drain plugs
- Pentair booster pump O-rings
