Pentair
Pentair Band Clamp Assembly | 355320Z
Pentair Band Clamp Assembly | 355320Z
Pentair 355320Z Complete Band Clamp Assembly
Restore a secure pump housing connection with the genuine Pentair 355320Z band clamp assembly. Designed for Pentair Challenger High Flow, Challenger High Pressure, and WaterFall Specialty pool pumps, this complete replacement clamp helps hold the pump housing and seal plate securely together.
What Is the Pentair 355320Z Band Clamp Assembly?
The Pentair 355320Z is a complete replacement pump housing band clamp used to secure the front housing to the seal plate on compatible Pentair pool pumps. The assembly includes the clamp band and tightening mechanism used to maintain a secure connection between these pump components.
It is an OEM replacement for select Pentair Challenger High Flow, Challenger High Pressure, and WaterFall Specialty pumps. It is also commonly referenced under part number 355320.
If your existing clamp is bent, severely corroded, damaged, or no longer tightens correctly, replacing the complete assembly can help restore proper clamping of the pump housing.
Features & Benefits
Genuine Pentair Replacement
Original manufacturer replacement component designed for specified Pentair pool pump assemblies.
Complete Clamp Assembly
Replaces the existing band clamp and adjustment mechanism without requiring reuse of a damaged clamp band.
Corrosion-Resistant Construction
Stainless steel band construction is suited to the demanding outdoor environment around pool equipment.
Secure Pump Housing Connection
Helps maintain the proper connection between the pump housing and seal plate when installed correctly.
Multiple Pentair Pump Families
Designed for compatible Challenger High Flow, Challenger High Pressure, and WaterFall Specialty models.
Practical Equipment Repair
Replace a worn or damaged housing clamp without automatically replacing an otherwise serviceable complete pump.
Compatible Pentair Pool Pumps
The Pentair 355320Z clamp assembly is specified for the following pump families:
- Pentair Challenger High Flow inground pool pumps
- Pentair Challenger High Pressure inground pool pumps
- Pentair WaterFall Specialty pumps
Important: Check the model number on your pump identification label and reference the manufacturer's replacement parts diagram before ordering. Similar-looking clamp assemblies are not necessarily interchangeable.
Product Specifications
| Manufacturer | Pentair |
|---|---|
| Manufacturer Part Number | 355320Z |
| Alternate Part Reference | 355320 |
| Product Type | Pool Pump Band Clamp Assembly |
| Assembly Type | Complete Band Clamp |
| Band Material | Stainless Steel |
| Application | Pump Housing / Seal Plate Connection |
| Compatible Pump Families | Challenger High Flow, Challenger High Pressure, WaterFall Specialty |
| UPC | 788379658779 |
| Included | Complete Band Clamp Assembly with Tightening / Locking Mechanism |
| Housing Gasket | Not Included; Sold Separately |
When Should You Replace Your Pump Band Clamp?
A band clamp is an important structural component of the pump housing assembly. Consider inspection or replacement if you notice:
- Visible bending, deformation, cracking, or damage to the existing clamp
- Excessive corrosion on the band or tightening hardware
- A tightening mechanism that is seized, stripped, or unable to secure the housing
- An uneven housing connection following service or disassembly
- Water leakage around the housing joint associated with a damaged or loose clamp
What's Included?
Included with Pentair 355320Z:
- One complete pump band clamp assembly
- Integrated adjustment / locking mechanism
Not included: Pump housing gasket, seal plate, front housing, mechanical shaft seal, or complete pump.
Detailed Information & FAQs
Technical Specifications
Part Number: 355320Z
Brand: Pentair
Part Category: Pool Pump
Replacement Parts
Assembly: Complete Band Clamp
Material: Stainless Steel Band
UPC: 788379658779
Application: Pump Housing
to Seal Plate Connection
Compatible Models & Fitment
This assembly is specified for Pentair Challenger High Flow, Challenger High Pressure, and WaterFall Specialty pumps.
Check the manufacturer's pump parts diagram against your specific model and revision. Do not assume compatibility with unrelated Pentair pumps or pool filter clamp systems.
Is Pentair 355320Z the Same as 355320?
The clamp assembly is commonly referenced under both 355320 and 355320Z in pool replacement parts listings. The manufacturer part number offered here is 355320Z.
Does the 355320Z Include the Housing O-Ring?
No. The Pentair 355320Z is the complete band clamp assembly. The housing O-ring or gasket is a separate replacement item. Verify the correct gasket for your pump model before ordering.
Can This Clamp Fix a Leaking Challenger Pump?
It may resolve a problem caused by a damaged or improperly securing band clamp. However, housing leaks can also result from worn gaskets, damaged mating surfaces, or other issues. The source of the leak should be diagnosed before replacing parts.
Does This Fit Challenger High Flow and High Pressure Pumps?
Yes. Pentair lists the 355320Z assembly for Challenger High Flow and High Pressure pump families. Confirm your exact model against the appropriate parts diagram.
Is This a Genuine Pentair Replacement Part?
Yes. Pentair 355320Z is the OEM part number for the complete band clamp assembly specified for supported pump models.
Can I Install the Clamp Myself?
Replacement requires safely shutting off electrical power, isolating the equipment, and fully relieving any pressure before opening the pump housing.
Follow the pump manufacturer's service instructions and recommended tightening procedure. Never loosen a clamp while the system is running or pressurized. Consult a qualified pool professional when uncertain.
Need Help Confirming Compatibility?
Not sure whether Pentair 355320Z is the correct replacement clamp for your Challenger or WaterFall pump?
The Aqua Terra Backyard team can help identify the correct replacement parts for your equipment. Have your pump model number, existing part number, or a clear photo of the equipment identification label available when contacting us.
We're here to help you find the right part and get your pool equipment back in service.
