Pentair Flat Washer 5/16 in. Stainless Steel for Max-E-Pro Series Pump | U43-41SSZ
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- SKU:
- U43-41SSZ
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About This Item
The Pentair Flat Washer (U43-41SSZ) is the OEM replacement 5/16-inch stainless steel flat washer for the Pentair Max-E-Pro Series inground pump and compatible Pentair suction trap assemblies.
This flat washer provides the clamping surface and load distribution needed at fastener points within the pump assembly and suction trap housing. Using the correct OEM-spec stainless steel washer ensures corrosion resistance in a wet pool equipment environment and maintains the proper clamping force at the fastener joint. Substituting an undersized or non-stainless washer at these points risks fastener loosening and housing damage over time.
Specifications
| Pentair Part Number | U43-41SSZ |
| Description | Flat washer, 5/16 in., stainless steel |
| Material | Stainless steel |
| Size | 5/16 in. |
| Quantity Included | Each (1) |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | Max-E-Pro Series Pump | 345076 | MAX-E-PRO Series |
| Pentair | Max-E-Pro Series Pump | 345079 | MAX-E-PRO Series |
| Pentair | Max-E-Pro Series Pump | P6R62E3-187 | MAX-E-PRO Series |
| Pentair | Max-E-Pro Series Pump | P6R62F3-188 | MAX-E-PRO Series |
| Pentair | Max-E-Pro Series Pump | P6EA6D36-204 | MAX-E-PRO Series |
| Pentair | Max-E-Pro Series Pump | P6EA6E36-205 | MAX-E-PRO Series |
| Pentair | Max-E-Pro Series Pump | P6EA6F36-206 | MAX-E-PRO Series |
| Pentair | 6-IN. Trap Replacement Parts | PKG 181 | Flat washer 5/16 in., used in both 6-in. and 5-in. suction trap assemblies |
| Pentair | 5-IN. Trap Replacement Parts — Hair and Lint Strainer Packages | PKG 115 | Flat washer 5/16 in., used in both 6-in. and 5-in. suction trap assemblies |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Pro Tip
When servicing the pump or trap assembly, check all fastener hardware — including washers — for corrosion or deformation before reassembly. Even stainless steel hardware can show surface oxidation or distortion after extended service in a pool environment. Replacing worn washers at the same time as other fastener components ensures consistent clamping force and reduces the chance of a return visit to the equipment pad.
