Pentair Diffuser | Challenger High Pressure Pump | 355270Z
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- Backordered: contact us for ETA
- SKU:
- 355270Z
-
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About This Item
The Pentair Diffuser (355270Z) is the OEM replacement diffuser for the Challenger High Pressure inground pump, sized for the 1‑1/2 HP Full Rated and 2 HP Up-Rated configurations.
The diffuser sits between the impeller and the volute, converting the high-velocity water leaving the impeller into pressure. A cracked, worn, or incorrectly sized diffuser reduces hydraulic efficiency, disrupts flow through the pump, and can accelerate wear on the impeller. Replacing it with the correct OEM part restores designed pump performance.
Specifications
| Pentair Part Number | 355270Z |
| Part Name | Diffuser |
| Configuration | 1-1/2 HP Full Rated / 2 HP Up-Rated |
| Quantity Included | Each (1) |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | Challenger High Pressure Pump | CHALLENGER | 1-1/2 HP Full Rated / 2 HP Up-Rated |
| Pentair | Challenger High Pressure Pump | CHALLENGER HIGH PRESSURE PUMP | 1-1/2 HP Full Rated / 2 HP Up-Rated |
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
Before ordering, check the part number molded into your existing diffuser. The Challenger pump is available in multiple HP configurations, each requiring a specific diffuser. Confirm your pump's nameplate rating (Full Rated vs. Up-Rated) and match it to the part number — 355270Z is correct for the 1‑1/2 HP Full Rated and 2 HP Up-Rated models only. When the pump is open for a diffuser replacement, inspect the impeller and shaft seal at the same time; if either shows wear, replacing them together avoids reopening the pump shortly after.
